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LH168M
LH168M
DESCRIPTION
The LH168M is a 384-output TFT-LCD source driver IC which can simultaneously display 262 144 colors in 64 gray scales.
384-output TFT-LCD Source Driver IC
PIN CONNECTIONS
434-PIN TCP TOP VIEW
FEATURES
* Number of LCD drive outputs : 384 * Built-in 6-bit digital input DAC * Dot-inversion drive : Outputs the inverted gray scale voltages between LCD drive pins next to each other * RSDSTM*(R _educed S _wing Differential Signaling) _ _ input interface (Data and CK) : Possible to reduce Electro-Magnetic _nterference (EMI) _ _ I * Possible to display 262 144 colors in 64 gray scales with reference voltage input of 18 gray scales : This reference voltage input corresponds to correction and intermediate reference voltage input can be abbreviated * Cascade connection * Sampling sequence : Output shift direction can be selected XO1, YO1, ZO1/XO128, YO128, ZO128 or ZO128, YO128, XO128/ZO1, YO1, XO1 * Shift clock frequency : 68 MHz (MAX.) * Supply voltages - VCC (for logic system) : +3.0 to +3.6 V - VLS (for LCD drive system) : +12 V (MAX.) * Package : 434-pin TCP (Tape Carrier Package)
* RSDS is a trademark of National Semiconductor Corporation. SHARP recommends FPD87310 of National Semiconductor Corporation as a timing controller for RSDSTM.
XO1 1 YO1 2 ZO1 3
434 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400 399 398 397 396 395 394 393 392 391 390 389 388 387 386 385
SPOI X0P X0N X1P X1N X2P X2N POL REV LS CKP CKN GND GND VH0 VH8 VH16 VH24 VH32 VH40 VH48 VH56 VH64 GND VLS VL64 VL56 VL48 VL40 VL32 VL24 VL16 VL8 VL0 LBR VCC VCC Y0P Y0N Y1P Y1N Y2P Y2N Z0P Z0N Z1P Z1N Z2P Z2N SPIO
XO128 382 YO128 383 ZO128 384
NOTE :
Doesn't prescribe TCP outline.
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
1
CHIP SURFACE
LH168M
PIN DESCRIPTION
PIN NO. 1 to 384 385 386 to 391 392 to 397 398, 399 400 401 to 409 410 411, 421, 422 412 to 420 423, 424 425 426 427 428 to 433 434 SYMBOL XO1-ZO128 SPIO Z2N-Z0P Y2N-Y0P VCC LBR VL0-VL64 VLS GND VH64-VH0 CKN, CKP LS REV POL X2N-X0P SPOI I/O O I/O I I - I I - - I I I I I I I/O DESCRIPTION LCD drive output pins Start pulse input/cascade output pin Data input pins Data input pins Power supply pins for digital circuit Shift direction selection input pin Reference voltage input pins Power supply pin for analog circuit Ground pins Reference voltage input pins Shift clock input pins Latch input pin LCD drive output polarity exchange input pin Input data polarity exchange input pin Data input pins Start pulse input/cascade output pin
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LH168M
BLOCK DIAGRAM
VCC 399 VCC GND GND 398 421 422 GND 411
LBR 400 SPOI 434 POL 427 CKP 424 CKN 423 COMPARATOR X0P 433 X2N 428 Y0P 397 Y2N 392 Z0P 391 6 Z2N 386 6 LS 425 6 6 LEVEL SHIFTER 6 VH0 420 VH64 412 VL64 409 VL0 401 18 REFERENCE VOLTAGE GENERATION CIRCUIT 64 x 2 6 6 6 HOLD MEMORY 6 410 VLS 6 6 12 128 SHIFT REGISTER 385 SPIO
DATA LATCH
6
SAMPLING MEMORY
DA CONVERTER
REV 426
OUTPUT CIRCUIT
1
2
3
382 383 384 XO128 YO128 ZO128
XO1 YO1 ZO1
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LH168M
FUNCTIONAL OPERATIONS OF EACH BLOCK
BLOCK Shift Register Data Latch Comparator Sampling Memory Hold Memory Level Shifter Reference Voltage Generation Circuit DA Converter Output Circuit FUNCTION Used as a bi-directional shift register which performs the shifting operation by CK and selects bits for data sampling. Used to temporary latch the input data which is sent to the sampling memory. Convert low voltage input signal into internal [CMOS level] voltage input signal. Used to sample the data to be entered by time sharing. Used for latch processing of data in the sampling memory by LS input. Used to shift the data in the hold memory to the power supply level of the analog circuit unit and sends the shifted data to DA converter. Used to generate a gamma-connected 64 x 2-level voltage by the resistor dividing circuit. Used to generate an analog signal according to the display data and sends the signal to the output circuit. Used as a voltage follower, configured with an operational amplifier and an output buffer, which outputs analog signals of 64 x 2 gray scales to LCD drive output pin.
INPUT/OUTPUT CIRCUITS
VCC
I
To Internal Circuit
GND
Applicable pins LBR, LS, REV
Fig. 1 Input Circuit (1)
VCC
I
To Internal Circuit
GND
GND
Applicable pin POL
Fig. 2 Input Circuit (2)
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LH168M
VCC
**P
I
Differential Input
GND VCC Comparator + **N I - To Internal Circuit
** : CK, X0-X2, Y0-Y2, Z0-Z2
GND
Applicable pin CKP, CKN, X0P-X2P, X0N-X2N, Y0P-Y2P, Y0N-Y2N, Z0P-Z2P, Z0N-Z2N
Fig. 3 Input Circuit (3)
Pch Tr
VCC
I
O
Output Signal
Output Control Signal Nch Tr GND
VCC
To Internal Circuit
GND
Applicable pins SPIO, SPOI
Fig. 4 Input/Output Circuit
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LH168M
VLS
Operational Amplifier O
+ -
From Internal Circuit
GND
Applicable pins XO1-XO128, YO1-YO128, ZO1-ZO128
Fig. 5 Output Circuit
FUNCTIONAL DESCRIPTION Pin Functions
SYMBOL VCC VLS GND SPIO SPOI FUNCTIONS Used as power supply pin for digital circuit, connected to +3.0 to +3.6 V. Used as power supply pin for analog circuit, connected to +8.0 to +12.0 V. Used as ground pin, connected to 0 V. Used as input pins of start pulse and also used as output pins for cascade connection. When "H" is input into start pulse input pin, data sampling is started. On completion of sampling, "H" pulse is output to output pin for cascade connection. Pin functions are selected by LBR. For selecting, refer to "Functional Operations". Used as input pin for selecting the shift register direction. For selecting, refer to "Functional Operations". Used as input pin for parallel transfer from sampling memory to hold memory. Data is transferred at the rising edge and output from LCD drive output pin. Used as shift clock input pin. Data is latched into sampling memory from data input pin at the falling edge and the rising edge. (Use RSDS input voltage : 0 V to VCC - 1.0 V) Used as reference voltage input pins. Hold the reference voltage fixed during the period of LCD drive output. For relation between input data and output voltage values, refer to "Output Voltage Value". For internal gamma correction, refer to "Gamma Correction Value". Observe the following relation for input voltage. VLS > VH0 VH8 VH64 VL64 VL56 VL0 > GND. X0P-X2N Y0P-Y2N Z0P-Z2N Used as data input pins of R, G, and B colors. 3-bit data are input from data pins at the falling edge and the rising edge of CKP (CKN). For relation between input data and output voltage values, refer to "Functional Operations" and "Output Voltage Value". Select the data to be entered into X, Y, and Z according to picture element arrays of the panel. Used as LCD drive output pins which output the voltage c/orresponding to the input of data input pins (X0P to X2N, Y0P to Y2N, Z0P to Z2N). Data of XO1 to XO128 correspond to X0P to X2N. Data of YO1 to YO128 correspond to Y0P to Y2N, and data of ZO1 to ZO128 correspond to Z0P to Z2N. For relation between input data and output voltage values, refer to "Functional Operations" and "Output Voltage Value".
LBR LS CKP CKN
VH0-VH64 VL0-VL64
XO1-XO128, YO1-YO128, ZO1-ZO128
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LH168M
SYMBOL FUNCTIONS Used as input pin for input data polarity exchange. When "L" is entered, display data becomes normal mode. When "H" is entered, input data becomes polarity exchange mode. For relation between input data and output voltage value, refer to "Output Voltage Value". These pins are pulled down at the inside. Used as polarity exchange pin of LCD drive output. Data is taken at the term when LS is "H" and the output polarity of LCD drive output pin is determined. For exchanging, refer to "Output Characteristics".
POL
REV
Functional Operations
The following describes the relation between data input pin and output direction.
Data input pin X0P-X2N Y0P-Y2N Z0P-Z2N Output XO1 YO1 ZO1 direction X0P-X2N Y0P-Y2N Z0P-Z2N XO128 YO128 ZO128
The following describes the relation between LBR pin, SPOI pin, SPIO pin and output direction
OUTPUT DIRECTION RIGHT SHIFT (XO1, YO1, ZO1/XO128, YO128, ZO128) H Input Output LEFT SHIFT (ZO128, YO128, XO128/ZO1, YO1, XO1) L Output Input
PIN LBR SPOI SPIO
NOTE :
Color data corresponding to X, Y, and Z vary depending on the output direction.
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LH168M
Output Characteristics
The following describes the relation between REV pin and output polarity of LCD drive pin.
REV XO1 YO1 ZO1 XO2 YO2 ZO2 XO3 YO3 ZO3 XO4 YO4 ZO4 : XO125 YO125 ZO125 XO126 YO126 ZO126 XO127 YO127 ZO127 XO128 YO128 ZO128 "H" + - + - + - + - + - + - : + - + - + - + - + - + - "L" - + - + - + - + - + - + : - + - + - + - + - + - +
NOTES :
+ : The gray scale voltages corresponding to reference voltage VH0 to VH64 are outputs. - : The gray scale voltages corresponding to reference voltage VL0 to VL64 are outputs.
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LH168M
Timing Diagram
CKP 1 2 3
SPIO (SPOI)
1
2
3
X0P-X0N
X0
X1
X0
X1
X0
X1
X0
X1
X1P-X1N
X2
X3
X2
X3
X2
X3
X2
X3
X2P-X2N
X4
X5
X4
X5
X4
X5
X4
X5
Y0P-Y0N
Y0
Y1
Y0
Y1
Y0
Y1
Y0
Y1
Y1P-Y1N
Y2
Y3
Y2
Y3
Y2
Y3
Y2
Y3
Y2P-Y2N
Y4
Y5
Y4
Y5
Y4
Y5
Y4
Y5
Z0P-Z0N
Z0
Z1
Z0
Z1
Z0
Z1
Z0
Z1
Z1P-Z1N
Z2
Z3
Z2
Z3
Z2
Z3
Z2
Z3
Z2P-Z2N
Z4
Z5
Z4
Z5
Z4
Z5
Z4
Z5
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LH168M
Output Voltage Value
Two voltages are selected from all of the reference voltages (V0-V64) by the upper 3-bit data (D5, D4 and D3) of the 6-bit input data (D5, D4, D3, D2, D1 and D0) taken by time sharing, and intermediate value is determined by the lower 3-bit data (D2, D1 and D0). The Vi is a reference voltage (VHi or VLi) that is determined by the polarity exchange input (REV). Relation between input data and output voltage values is shown below. (i = 0, 8, 16, 24, 32, 40, 48, 56, 64)
(1) Output voltage when reference voltage is VH0 to VH64.
INPUT DATA 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F OUTPUT VOLTAGE POL = "L" VH0 INPUT OUTPUT VOLTAGE POL = "L" VH32 POL = "H" VH32 + (VH24 - VH32) x 1/8 POL = "H" DATA VH64 + (VH56 - VH64) x 1/8 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F
VH8 + (VH0 - VH8) x 7/8 VH64 + (VH56 - VH64) x 2/8 VH8 + (VH0 - VH8) x 6/8 VH64 + (VH56 - VH64) x 3/8 VH8 + (VH0 - VH8) x 5/8 VH64 + (VH56 - VH64) x 4/8 VH8 + (VH0 - VH8) x 4/8 VH64 + (VH56 - VH64) x 5/8 VH8 + (VH0 - VH8) x 3/8 VH64 + (VH56 - VH64) x 6/8 VH8 + (VH0 - VH8) x 2/8 VH64 + (VH56 - VH64) x 7/8 VH8 + (VH0 - VH8) x 1/8 VH8 VH56 VH56 + (VH48 - VH56) x 1/8
VH40 + (VH32 - VH40) x 7/8 VH32 + (VH24 - VH32) x 2/8 VH40 + (VH32 - VH40) x 6/8 VH32 + (VH24 - VH32) x 3/8 VH40 + (VH32 - VH40) x 5/8 VH32 + (VH24 - VH32) x 4/8 VH40 + (VH32 - VH40) x 4/8 VH32 + (VH24 - VH32) x 5/8 VH40 + (VH32 - VH40) x 3/8 VH32 + (VH24 - VH32) x 6/8 VH40 + (VH32 - VH40) x 2/8 VH32 + (VH24 - VH32) x 7/8 VH40 + (VH32 - VH40) x 1/8 VH40 VH24 VH24 + (VH16 - VH24) x 1/8
VH16 + (VH8 - VH16) x 7/8 VH56 + (VH48 - VH56) x 2/8 VH16 + (VH8 - VH16) x 6/8 VH56 + (VH48 - VH56) x 3/8 VH16 + (VH8 - VH16) x 5/8 VH56 + (VH48 - VH56) x 4/8 VH16 + (VH8 - VH16) x 4/8 VH56 + (VH48 - VH56) x 5/8 VH16 + (VH8 - VH16) x 3/8 VH56 + (VH48 - VH56) x 6/8 VH16 + (VH8 - VH16) x 2/8 VH56 + (VH48 - VH56) x 7/8 VH16 + (VH8 - VH16) x 1/8 VH48 VH16 VH48 + (VH40 - VH48) x 1/8 VH24 + (VH16 - VH24) x 7/8 VH48 + (VH40 - VH48) x 2/8 VH24 + (VH16 - VH24) x 6/8 VH48 + (VH40 - VH48) x 3/8 VH24 + (VH16 - VH24) x 5/8 VH48 + (VH40 - VH48) x 4/8 VH24 + (VH16 - VH24) x 4/8 VH48 + (VH40 - VH48) x 5/8 VH24 + (VH16 - VH24) x 3/8 VH48 + (VH40 - VH48) x 6/8 VH24 + (VH16 - VH24) x 2/8 VH48 + (VH40 - VH48) x 7/8 VH24 + (VH16 - VH24) x 1/8 VH24 VH40 VH40 + (VH32 - VH40) x 1/8
VH48 + (VH40 - VH48) x 7/8 VH24 + (VH16 - VH24) x 2/8 VH48 + (VH40 - VH48) x 6/8 VH24 + (VH16 - VH24) x 3/8 VH48 + (VH40 - VH48) x 5/8 VH24 + (VH16 - VH24) x 4/8 VH48 + (VH40 - VH48) x 4/8 VH24 + (VH16 - VH24) x 5/8 VH48 + (VH40 - VH48) x 3/8 VH24 + (VH16 - VH24) x 6/8 VH48 + (VH40 - VH48) x 2/8 VH24 + (VH16 - VH24) x 7/8 VH48 + (VH40 - VH48) x 1/8 VH16 VH48 VH16 + (VH8 - VH16) x 1/8 VH56 + (VH48 - VH56) x 7/8 VH16 + (VH8 - VH16) x 2/8 VH56 + (VH48 - VH56) x 6/8 VH16 + (VH8 - VH16) x 3/8 VH56 + (VH48 - VH56) x 5/8 VH16 + (VH8 - VH16) x 4/8 VH56 + (VH48 - VH56) x 4/8 VH16 + (VH8 - VH16) x 5/8 VH56 + (VH48 - VH56) x 3/8 VH16 + (VH8 - VH16) x 6/8 VH56 + (VH48 - VH56) x 2/8 VH16 + (VH8 - VH16) x 7/8 VH56 + (VH48 - VH56) x 1/8 VH56 VH8 VH8 + (VH0 - VH8) x 1/8
VH32 + (VH24 - VH32) x 7/8 VH40 + (VH32 - VH40) x 2/8 VH32 + (VH24 - VH32) x 6/8 VH40 + (VH32 - VH40) x 3/8 VH32 + (VH24 - VH32) x 5/8 VH40 + (VH32 - VH40) x 4/8 VH32 + (VH24 - VH32) x 4/8 VH40 + (VH32 - VH40) x 5/8 VH32 + (VH24 - VH32) x 3/8 VH40 + (VH32 - VH40) x 6/8 VH32 + (VH24 - VH32) x 2/8 VH40 + (VH32 - VH40) x 7/8 VH32 + (VH24 - VH32) x 1/8 VH32
VH64 + (VH56 - VH64) x 7/8 VH8 + (VH0 - VH8) x 2/8 VH64 + (VH56 - VH64) x 6/8 VH8 + (VH0 - VH8) x 3/8 VH64 + (VH56 - VH64) x 5/8 VH8 + (VH0 - VH8) x 4/8 VH64 + (VH56 - VH64) x 4/8 VH8 + (VH0 - VH8) x 5/8 VH64 + (VH56 - VH64) x 3/8 VH8 + (VH0 - VH8) x 6/8 VH64 + (VH56 - VH64) x 2/8 VH8 + (VH0 - VH8) x 7/8 VH64 + (VH56 - VH64) x 1/8 VH0
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LH168M
(2) Output voltage when reference voltage is VL0 to VL64.
INPUT DATA 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F OUTPUT VOLTAGE INPUT OUTPUT VOLTAGE POL = "L" POL = "H" DATA POL = "L" POL = "H" VL0 VL64 + (VL56 - VL64) x 1/8 20 VL32 VL32 + (VL24 - VL32) x 1/8 VL8 + (VL0 - VL8) x 7/8 VL64 + (VL56 - VL64) x 2/8 21 VL40 + (VL32 - VL40) x 7/8 VL32 + (VL24 - VL32) x 2/8 VL8 + (VL0 - VL8) x 6/8 VL64 + (VL56 - VL64) x 3/8 VL8 + (VL0 - VL8) x 5/8 VL64 + (VL56 - VL64) x 4/8 VL8 + (VL0 - VL8) x 4/8 VL64 + (VL56 - VL64) x 5/8 VL8 + (VL0 - VL8) x 3/8 VL64 + (VL56 - VL64) x 6/8 VL8 + (VL0 - VL8) x 2/8 VL64 + (VL56 - VL64) x 7/8 VL8 + (VL0 - VL8) x 1/8 VL56 VL8 VL56 + (VL48 - VL56) x 1/8 VL16 + (VL8 - VL16) x 7/8 VL56 + (VL48 - VL56) x 2/8 VL16 + (VL8 - VL16) x 6/8 VL56 + (VL48 - VL56) x 3/8 VL16 + (VL8 - VL16) x 5/8 VL56 + (VL48 - VL56) x 4/8 VL16 + (VL8 - VL16) x 4/8 VL56 + (VL48 - VL56) x 5/8 VL16 + (VL8 - VL16) x 3/8 VL56 + (VL48 - VL56) x 6/8 VL16 + (VL8 - VL16) x 2/8 VL56 + (VL48 - VL56) x 7/8 VL16 + (VL8 - VL16) x 1/8 VL16 VL48 VL48 + (VL40 - VL48) x 1/8 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F VL40 + (VL32 - VL40) x 6/8 VL32 + (VL24 - VL32) x 3/8 VL40 + (VL32 - VL40) x 5/8 VL32 + (VL24 - VL32) x 4/8 VL40 + (VL32 - VL40) x 4/8 VL32 + (VL24 - VL32) x 5/8 VL40 + (VL32 - VL40) x 3/8 VL32 + (VL24 - VL32) x 6/8 VL40 + (VL32 - VL40) x 2/8 VL32 + (VL24 - VL32) x 7/8 VL40 + (VL32 - VL40) x 1/8 VL24 VL40 VL24 + (VL16 - VL24) x 1/8 VL48 + (VL40 - VL48) x 7/8 VL24 + (VL16 - VL24) x 2/8 VL48 + (VL40 - VL48) x 6/8 VL24 + (VL16 - VL24) x 3/8 VL48 + (VL40 - VL48) x 5/8 VL24 + (VL16 - VL24) x 4/8 VL48 + (VL40 - VL48) x 4/8 VL24 + (VL16 - VL24) x 5/8 VL48 + (VL40 - VL48) x 3/8 VL24 + (VL16 - VL24) x 6/8 VL48 + (VL40 - VL48) x 2/8 VL24 + (VL16 - VL24) x 7/8 VL48 + (VL40 - VL48) x 1/8 VL48 VL16 VL16 + (VL8 - VL16) x 1/8
VL24 + (VL16 - VL24) x 7/8 VL48 + (VL40 - VL48) x 2/8 VL24 + (VL16 - VL24) x 6/8 VL48 + (VL40 - VL48) x 3/8 VL24 + (VL16 - VL24) x 5/8 VL48 + (VL40 - VL48) x 4/8 VL24 + (VL16 - VL24) x 4/8 VL48 + (VL40 - VL48) x 5/8 VL24 + (VL16 - VL24) x 3/8 VL48 + (VL40 - VL48) x 6/8 VL24 + (VL16 - VL24) x 2/8 VL48 + (VL40 - VL48) x 7/8 VL24 + (VL16 - VL24) x 1/8 VL40 VL24 VL40 + (VL32 - VL40) x 1/8 VL32 + (VL24 - VL32) x 7/8 VL40 + (VL32 - VL40) x 2/8 VL32 + (VL24 - VL32) x 6/8 VL40 + (VL32 - VL40) x 3/8 VL32 + (VL24 - VL32) x 5/8 VL40 + (VL32 - VL40) x 4/8 VL32 + (VL24 - VL32) x 4/8 VL40 + (VL32 - VL40) x 5/8 VL32 + (VL24 - VL32) x 3/8 VL40 + (VL32 - VL40) x 6/8 VL32 + (VL24 - VL32) x 2/8 VL40 + (VL32 - VL40) x 7/8 VL32 + (VL24 - VL32) x 1/8 VL32
VL56 + (VL48 - VL56) x 7/8 VL16 + (VL8 - VL16) x 2/8 VL56 + (VL48 - VL56) x 6/8 VL16 + (VL8 - VL16) x 3/8 VL56 + (VL48 - VL56) x 5/8 VL16 + (VL8 - VL16) x 4/8 VL56 + (VL48 - VL56) x 4/8 VL16 + (VL8 - VL16) x 5/8 VL56 + (VL48 - VL56) x 3/8 VL16 + (VL8 - VL16) x 6/8 VL56 + (VL48 - VL56) x 2/8 VL16 + (VL8 - VL16) x 7/8 VL56 + (VL48 - VL56) x 1/8 VL8 VL56 VL8 + (VL0 - VL8) x 1/8 VL64 + (VL56 - VL64) x 7/8 VL8 + (VL0 - VL8) x 2/8 VL64 + (VL56 - VL64) x 6/8 VL8 + (VL0 - VL8) x 3/8 VL64 + (VL56 - VL64) x 5/8 VL8 + (VL0 - VL8) x 4/8 VL64 + (VL56 - VL64) x 4/8 VL8 + (VL0 - VL8) x 5/8 VL64 + (VL56 - VL64) x 3/8 VL8 + (VL0 - VL8) x 6/8 VL64 + (VL56 - VL64) x 2/8 VL8 + (VL0 - VL8) x 7/8 VL64 + (VL56 - VL64) x 1/8 VL0
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LH168M
(Gamma) Correction Value
Between reference voltage input pins VH0 and VH64, 64 resistors are connected in series. And between reference voltage input pins VL0 and VL64, 64 resistors are connected in series. No resistor is connected between reference voltage input pins VH64 and VL64. The correction curve is a broken line connected between intermediate voltage inputs (VH8, VH16, VH24, VH32, VH40, VH48, VH56, VL8, VL16, VL24, VL32, VL40, VL48 and VL56). Each correction value between the intermediate voltage inputs is divided into 8 parts by the same resistor.
LH168M VH0 VH8 VH16 VH24 VH32 VH40 R0 R1 R2 R3 R4 R5 R6 R7 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts
External Reference Voltage
VH48 VH56 VH64 VL64 VL56 VL48 VL40 VL32 VL24 VL16 VL8 VL0
R8 R9 R10 R11 R12 R13 R14 R15
8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts 8 equal parts
The following shows the ratio of correction resistance, when R0 equals 1.
R0 R1 R2 R3 R4 R5 R6 R7 1.00 0.50 0.50 0.50 0.50 0.50 0.50 1.00 R8 R9 R10 R11 R12 R13 R14 R15 1.00 0.50 0.50 0.50 0.50 0.50 0.50 1.00
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LH168M
PRECAUTIONS
Precautions when connecting or disconnecting the power supply This IC has some power supply pins, so it may be permanently damaged by a high current which may flow if voltage is supplied to the LCD drive power supply while the logic system power supply is floating. Therefore, when connecting the power supply, observe the following sequence. VCC / logic input / VLS, VH0-VH64, VL0-VL64 When disconnecting the power supply, follow the reverse sequence. Reference voltage input The relation of the reference voltage input is shown here. VLS > VH0 VH8 VH56 VH64 0.5VLS VL64 VL56 VL8 VL0 > GND Maximum ratings When connecting or disconnecting the power supply, this IC must be used within the range of the absolute maximum ratings. Target output load This IC is designed for a 150 pF output load capacity. When using this IC for other than 150 pF panels, confirm the device is having no problem before using it.
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply voltage SYMBOL VCC VLS VI VI VO VO TSTG APPLICABLE PINS VCC VLS VH0-VL0 SPIO, SPOI, CKP, CKN, LS, REV, LBR, POL, X0P-X2N, Y0P-Y2N, Z0P-Z2N SPIO, SPOI XO1-ZO128 RATING -0.3 to +6.0 -0.3 to +13.0 -0.3 to VLS + 0.3 -0.3 to VCC + 0.3 -0.3 to VCC + 0.3 -0.3 to VLS + 0.3 -45 to +125 UNIT V V V V V V C NOTE
Input voltage
1, 2
Output voltage Storage temperature
NOTES :
1. TA = +25 C 2. The maximum applicable voltage on any pin with respect to GND (0 V).
RECOMMENDED OPERATING CONDITIONS
SYMBOL MIN. VCC +3.0 Supply voltage +8.0 VLS VH0-VH64 0.5VLS Reference voltage input VL0-VL64 +0.1 Clock frequency fCK LCD drive output load capacity CL TOPR -20 Operating temperature PARAMETER TYP. MAX. UNIT +3.6 V +12.0 V VLS - 0.1 V 0.5VLS V 68 MHz 150 pF +75 C NOTE 1
NOTE :
1. The applicable voltage on any pin with respect to GND (0 V).
13
LH168M
ELECTRICAL CHARACTERISTICS DC Characteristics
PARAMETER Input "Low" voltage Input "High" voltage RSDS Input "Low" voltage RSDS Input "High" voltage RSDS reference voltage Output "Low" voltage Output "High" voltage Input "Low" current
(VCC = +3.0 to +3.6 V, VLS = +8.0 to +12.0 V, TOPR = -20 to +75 C)
APPLICABLE PINS SPIO, SPOI, LS, LBR, REV, POL MIN. GND 0.7VCC -200 X0P-X2N, Y0P-Y2N, Z0P-Z2N, CKP, CKN GND + 0.1 IOL = 0.3 mA IOH = -0.3 mA SPIO, SPOI X0P-X2N, Y0P-Y2N, Z0P-Z2N, GND VCC - 0.4 200 1.2 VCC - 1.2 GND + 0.4 VCC 10 TYP. MAX. 0.3VCC VCC UNIT V V mV 1 mV V V V A 2 NOTE
SYMBOL CONDITIONS VIL VIH VILRSDS VIHRSDS VCOMRSDS VOL VOH IILL1
SPIO, SPOI, CKP, CKN, LS LBR, REV, POL X0P-X2N, Y0P-Y2N, Z0P-Z2N, SPIO, SPOI, CKP, CKN, LS, LBR POL fCK = 65 MHz fLS = 50 kHz fREV = 50 kHz (Data sampling state) fCK = 65 MHz fLS = 50 kHz SPI = REV = GND is fixed. (Standby state) fCK = 65 MHz fLS = 50 kHz fREV = 50 kHz (Data sampling state) fCK = 65 MHz VLS-GND VCC-GND
Input "High" current
IILH1 IILH2
10 400
A A
Supply current (In operation mode)
ICC1
14
mA
Supply current (In standby mode)
ICC2
2
mA
Supply current (In operation mode)
ILS1
5
mA
Supply current (In standby mode) Output voltage range Deviations between output voltage pins Output current Resistance between reference voltage input pins
ILS2
fLS = 50 kHz SPI = REV = GND is fixed. (Standby state) GND + 0.2 XO1-ZO128 -20 100 VH0-VH64 VL0-VL64 10 10 200 20 20
4
mA
VOUT VOD IO1-IO4 RGMAH RGMAL
VLS - 0.2 +20
V mV A 3 4
30 30
k$ k$
14
LH168M
NOTES :
1. VCOMRSDS = (V**P+V**N)/2 = 1.2 V **P = X0P-X2P, Y0P-Y2P, Z0P-Z2P **N = X0N-X2N, Y0N-Y2N, Z0N-Z2N 2. VDIFFRSDS = V**P - V**N = 0.2 V 3. Criterion of evaluating voltage deviations. (a) Between output voltage pins Measuring values : Output voltage value at the time after 10 s at the rising edge of LS. (Average of several times) (Conditions) Output load capacity is 150 pF. In a state when the reference voltage is fixed. Expecting values : Calculated following these specifications. (Conditions) In a state when the reference voltage is fixed. (b) Between LCD drivers. Measuring values : Applicable to (a). (Conditions) Applicable to (a). Expecting values : Applicable to (a). (Conditions) Applicable to (a). Each input voltage between the LCD drivers must be made perfectly equal by connecting corresponding reference voltage input pins. 4. Io1 : Applied voltage = 8.0 V for output pins XO1 to ZO128. Output voltage = 7.5 V for output pins XO1 to ZO128. VLS = 10.0 V Io2 : Applied voltage = 7.0 V for output pins XO1 to ZO128. Output voltage = 7.5 V for output pins XO1 to ZO128. VLS = 10.0 V Io3 : Applied voltage = 3.0 V for output pins XO1 to ZO128. Output voltage = 2.5 V for output pins XO1 to ZO128. VLS = 10.0 V Io4 : Applied voltage = 2.0 V for output pins XO1 to ZO128. Output voltage = 2.5 V for output pins XO1 to ZO128. VLS = 10.0 V
15
LH168M
AC Characteristics
PARAMETER Clock frequency "H" level pulse width "L" level pulse width Input rise time Input fall time Data setup time Data hold time Start pulse setup time Start pulse hold time Start pulse width Start pulse output delay time LCD drive output delay time 1 LCD drive output delay time 2 LS signal-SPI signal setup time LS signal-CK signal hold time LS signal "H" level width REV signal-LS signal setup time REV signal-LS signal hold time
(VCC = +3.0 to +3.6 V, VLS = +8.0 to +12.0 V, TOPR = -20 to +75 C)
APPLICABLE PINS MIN. 6 6 5 5 X0P-X2N, Y0P-Y2N, Z0P-Z2N 3 0 1 2 SPIO, SPOI CL = 15 pF CL = 150 pF XO1-ZO128 CL = 150 pF 1 -------fCK LS 7 1 -------fCK 14 REV 10 1 -------fCK 13 3 10 TYP. MAX. 68 UNIT MHz ns ns ns ns ns ns ns ns ns ns s s ns ns ns ns ns
SYMBOL CONDITIONS fCK tCWH tCWL tCR tCF tSUD tHD tSUSP tHSP tWSP tDSP tDO1 tDO2 tLSSP tHLS tWLS tSURV tHRV
CKP
16
LH168M
Timing Chart
tCF CKP (RSDS) tSUSP SPIO Input (SPOI) tWSP **P - **N (RSDS) **P = X0P-X2P, Y0P-Y2P, Z0P-Z2P **N = X0N-X2N, Y0N-Y2N, Z0N-Z2N tHSP tCWH 1 fCK tSUD tHD tSUD tHD tCWL tCR 1 2
CKP (RSDS)
LAST - 2 tDSP
LAST - 1
SPIO Output (SPOI) tHLS LS tLSSP SPIO Input (SPOI) tSURV REV tDO1 XO1-ZO128 Target voltage (VLS x 0.1) Target voltage (6-bit accuracy) tHRV tWLS
tDO2
17

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