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A276308A
64K X 8 OTP CMOS EPROM
Document Title 64K X 8 OTP CMOS EPROM Revision History
Rev. No.
0.0 0.1 1.0
History
Initial issue Change Program Verify VCC to 6.25V Final spec release
Issue Date
March 24, 2000 March 14, 2001 December 17, 2001
Remark
Preliminary
(December, 2001, Version 1.0)
AMIC Technology, Inc.
A276308A
64K X 8 OTP CMOS EPROM
Features
n n n n 65,536 X 8 bit organization Programming voltage: 12.75V Access time: 55/70/90 ns (max.) Current: Operating: 30mA (max.) at 5MHz Standby: 100A (max.) n All inputs and outputs are directly TTL-compatible n Available in 28-pin DIP and 32-PLCC packages
General Description
The A276308A chip is a high-performance 524,288 bit one-time programmable read only memory (OTP EPROM) organized as 64K by 8 bits. The A276308A requires only 5V power supply in normal read mode operation and any input signals are TTL levels. The A276308A is available in industry standard 28 pin dual-inline and 32 lead PLCC packages.
Pin Configurations
n DIP
A7
n PLCC
VCC A12 A15 A14 31 A13 30 NC 1
A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VCC A14 A13 A8 A9 A11 OE / VPP A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 A6 A5 A4 A3 A2 A1 A0 NC I/O0 5 6 7 8 9 10 11 12 13
32
4
3
2
29 28 27 26
A8 A9 A11 NC OE / VPP A10 CE I/O7 I/O6
14
15
16
17
18
19
I/O2
I/O3
GND
I/O1
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
I/O4
I/O5
NC
20
A276308A
A276308AL
25 24 23 22 21
A276308A
Pin Configurations
Pin Name A0-A15 I/O7-I/O0 CE OE / VPP VCC GND NC Address Inputs Data Inputs / Outputs Chip Enable Output Enable / Program Power Supply Power Supply Ground No Internal Connection Function
Operating Modes and Truth Table
Mode Read Output Disable Standby Program Program Verify Program Inhibit Manufacturer Code Device Code
(3) (3)
CE VIL VIL VIH VIL VIL VIH VIL VIL
(3)
OE / VPP VIL VIH X 12.75V VIL 12.75V VIL VIL VIL
A0 X X X X X X VIL VIH VIL
A1 X X X X X X VIL VIL VIH
A9 X X X X X X VID VID VID
VCC VCC VCC VCC 6.25V 6.25V 6.25V VCC VCC VCC
I/O7-I/O0 Data Out Hi-Z Hi-Z Data In Data Out Hi-Z 37H 2CH 7FH
Continuation Code
VIL
Notes: 1. X = Either VIH or VIL. 2. VID = 12V 0.5V. 3. A2 ~ A8 = A10 ~ A15 = VIL (For auto identification)
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Functional Description
Read Mode The A276308A has two control functions, both of which must be logically active in order to obtain data at the outputs. CE is the power control and should be used for device selection. OE is the output control and should be used to data to the output pins, which is independent of device selection. Assuming that addresses are stable, address access time (tAA) is equal to the delay from CE to output (tCE). Data is available at the output after a delay (tOE) from the falling edge of OE , as long as CE has been low and the addresses have been stable for at least tAA - tOE. Standby Mode The A276308A has a standby mode which reduces the active current from 30mA to 100A. The A276308A is placed in the standby mode by applying a CMOS high signal to CE . When in the standby mode, the output are in a high impedance state, independent of the OE . Auto Identify Mode The auto identify mode allows the reading out of a binary code from a EPROM that will identify its manufacturer and type. This mode is intended for use by programming equipment for the purpose of automatically matching the device to be programmed with its corresponding programming algorithm. To activate the mode, the programming equipment must apply 12.0V 0.5V on address line A9 of the A276308A. Three identification code can be read from data output pin by toggling A0 and A1. The other addresses must be held at VIL during this mode. Byte 0 (with A0 at VIL, A1 at VIL) represents the manufacturer code which is 37H. Byte 1 and Byte 2 represent the device code and continuation code, which is 2CH and 7FH respectively. All identifiers for these codes will possess odd parity, with MSB (IO7) defined the parity bit.
Absolute Maximum Ratings*
Ambient Operating Temperature (TA) . . . . -10C to +85C Storage Temperature Plastic Package (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to 125C Applied Input Voltage (VI): All Pins Except A9, VPP and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to VCC + 0.6V A9, VPP . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to 13.5V VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to 7.0V Output Voltage (VO) . . . . . . . . . . . . -0.6V to 7.0V (Note 1)
*Comments
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to this device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied or intended. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
Notes: 1. During voltage transitions, the input may undershoot GND to -2.0V for periods less than 20 ns. Maximum DC voltage on input and I/O may overshoot to VCC + 2.0V for periods less than 20 ns. 2. When transitions, A9 and VPP may undershoot GND to -2.0V for periods less than 20 ns. Maximum DC input voltage on A9 and VPP is +13.5V which may overshoot to 14.0V for period less than 20 ns.
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Read Mode DC Electrical Characteristics (Ta = 0C to 70C, VCC = 5V 10%, VPP = VCC)
Symbol VOH VOL VIH VIL ILI Parameter Output High Voltage Output Low Voltage Input High Voltage Input Low Voltage Input Leakage Current 2.0 -0.5 -1 Min. 2.4 0.4 VCC + 0.5 0.8 +1 Max. Unit V V V V A VCC = max. Vin = 0V to VCC VCC = max. Vout = 0V to VCC VCC = max. CE = VIL, OE = VIL Iout = 0mA, at 5MHz VCC = max. CE = VIH VCC = max. CE = VCC - 0.2V CE = OE = VIL, VPP = VCC A9 = VID, VCC = max. Conditions IOH = -400A IOL = 2.1mA
ILO
Output Leakage Current
-1
+1
A
ICC
VCC Read Operating Current
30
mA
ISB
VCC Standby Current (TTL)
1
mA A
ISB1
VCC Standby Current (CMOS)
100
IPP IID
VPP Current During Read A9 Auto Select Current
10 100
A A
Capacitance (TA = 25C, f = 1.0MHz)
Symbol CIN COut Parameter Input Capacitance Output Capacitance Min. Max. 8 8 Unit pF pF Conditions VIN = 0V VOut = 0V
* These parameters are sampled and not 100% tested.
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Read Mode AC Characteristics (Ta = 0C to 70C, VCC = 5V 10%, VPP = VCC)
Symbol Parameter Min. tCYC tAA tCE tOE tOH Cycle Time Address Access Time Chip Enable Access Time Output Enable Access Time Output Hold after Address, CE or OE , whichever Occurred First Output High Z Delay 0 55 55 55 30 0 55ns Max. Min. 70 70 70 35 0 70ns Max. Min. 90 90 90 40 90ns Max. ns ns ns ns ns Unit
tHZ
20
20
25
ns
Read Mode Switching Waveforms
tCYC ADDRESS Address Valid
CE tCE OE / VPP tOE tAA OUTPUT Valid Output tOH High-Z
tHZ
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
AC Measurement Conditions
for 55 ns * Input Rise and Fall Times 10 ns Input Pulse Voltage: 0V to 3Volt Input and Output Timing Ref. Voltage: 1.5Volt
3.0V 1.5V 0V INPUT
for 70/90 ns * Input Rise and Fall Times 10 ns Input Pulse Voltage: 0.4V to 2.4Volt Input and Output Timing Ref. Voltage: 0.8V to 2.0Volt
TEST POINTS
1.5V
OUTPUT
2.4V 2.0V 0.8V 0.4V INPUT
AC Testing Load Circuit
TEST POINTS
2.0V 0.8V OUTPUT
1.3V 1N914
3.3K DEVICE UNDER TEST OUT CL = 30pF or 100pF
CL = 30pF for 55 ns CL = 100pF for 70/90 ns CL includes JIG capacitance
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Programming and Program Verify
The programming flowchart is shown in Page 10. The A276308A is shipped with all bits being set to "1". Programming causes relevant bits to be changed to "0". The programming mode is started by setting VCC to 6.25V, OE /VPP to +12.75V and CE is at VIL. Data to be programmed can be directly input in the 8 bit format through the data bus. The write programming algorithm reduces programming time by using 100s pulse followed by a byte verification to determine whether the byte has been successfully programmed. If the data does not pass the verification, an additional pulse programming is applied for a maximum of 25 pulses. On completion of 1 byte programming and, The verified address is incremented. After the final address is completed, all bytes are verified again with VCC = 5.0 Volt.
Program Inhibit
This mode is used to program one of multiple A276308A whose VCC, address bus and data bus are connected in parallel. When programming is performed, other A276308A can be inhibited from being programmed by setting their CE pins to VIH and OE /VPP pins to +12.75V.
Programming Mode DC Characteristics (Ta = 0C to 70C, VCC = 6.25V 0.25V, VPP = 12.75V 0.25V)
Symbol VOH VOL VIH VIL ILI ICC IPP VID VCC1 VPP1 Parameter Output High Voltage Output Low Voltage Input High Voltage Input Low Voltage Input Leakage Current VCC Current During Program VPP Current During Program A9 Auto Select Voltage Programming Supply Voltage Programming Voltage 11.5 6.0 12.5 2.0 -0.5 -1 Min. 2.4 0.4 VCC + 0.5 0.8 +1 50 50 12.5 6.5 13 Max. Unit V V V V A mA mA V V V CE = VIL A9 = VID VCC = max. Vin = 0V to VCC Test Conditions IOH = -400A IOL = 2.1mA
Note: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Programming Mode AC Characteristics (Ta = 0C to 70C, VCC= 6.25V 0.25V, VPP = 12.75V 0.25V)
Symbol tAS tDS tVPS tVCS tPW tDH tVR tDV tDFP tAH Parameter Address Valid to Program Low Input Valid to Program Low VPP Set up Time VCC Set up Time Program Pulse Width Data Hold Time OE / VPP Recovery Time Data Valid from CE Chip Enable to Output Float Delay Address Hold Time 0 Min. 2 2 2 2 95 2 2 100 130 105 Max. Unit s s s s s s s ns ns ns
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Programming and Verify Mode AC Waveforms
PROGRAM VIH ADDRESS VIL tAS Hi-Z tDH VALID
PROGRAM VERIFY
DATA tDS
DATA IN
DATA OUT tDV tDFP
VPP1 OE / VPP VCC tVPS VCC1 VCC VCC tVCS tPW CE VIH VIL tVR tAH tVPS
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Programming Flowchart
START
ADDRESS=FIRST LOCATION
INTERACTIVE SECTION
VCC=6.25V VPP=12.75V
X=0
PROGRAM ONE 100s PULSE
INCREMENT X
X = 25?
YES
NO FAIL FAIL
VERIFY BYTE
VERIFY BYTE
PASS PASS INCREMENT ADDRESS NO LAST ADDRESS
YES VCC=VPP=5.0V VERIFY SECTION
VERIFY ALL BYTES ? PASS DEVICE PASSED
FAIL
DEVICE FAILED
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Ordering Information
Part No. A276308A-55 A276308AL-55 A276308A-70 A276308AL-70 A276308A-90 A276308AL-90 Access Time (ns) 55 55 70 70 90 90 Operating Current Max. (mA) at 5MHz 30 30 30 30 30 30 Standby Current Max. (A) 100 100 100 100 100 100 Package 28Pin DIP 32Pin PLCC 28Pin DIP 32Pin PLCC 28Pin DIP 32Pin PLCC
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Package Information P-DIP 28L Outline Dimensions
unit: inches/mm
D 28 15
E1
1 S
14 E C
A2
A
A1
Base Plane
Seating Plane B B1 e eA
L
Symbol
A A1 A2 B B1 C D E E1 e L eA S
Dimensions in inches Min 0.010 0.150 0.016 0.058 0.008 0.590 0.540 0.090 0.120 0 0.630 Nom 0.155 0.018 0.060 0.010 1.460 0.600 0.545 0.100 0.130 0.650 Max 0.210 0.160 0.022 0.064 0.014 1.470 0.610 0.550 0.110 0.140 15 0.670 0.090
Dimensions in mm Min 0.25 3.81 0.41 1.47 0.20 14.99 13.72 2.29 3.05 0 16.00 Nom 3.94 0.46 1.52 0.25 37.08 15.24 13.84 2.54 3.30 16.51 Max 5.33 4.06 0.56 1.63 0.36 37.34 15.49 13.97 2.79 3.56 15 17.02 2.29
Notes: 1. The maximum value of dimension D includes end flash. 2. Dimension E1 does not include resin fins. 3. Dimension S includes end flash.
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
A276308A
Package Information PLCC 32L Outline Dimension
HD D 13 5
unit: inches/mm
14
4
1 32
20
30
21
29
A2
A
E HE
b1 GD y D
A1
e
b
GE
Symbol
A A1 A2 b1 b C D E e GD GE HD HE L y
Dimensions in inches Min 0.0185 0.105 0.026 0.016 0.008 0.547 0.447 0.044 0.490 0.390 0.585 0.485 0.075 0 Nom 0.110 0.028 0.018 0.010 0.550 0.450 0.050 0.510 0.410 0.590 0.490 0.090 Max 0.134 0.115 0.032 0.021 0.014 0.553 0.453 0.056 0.530 0.430 0.595 0.495 0.095 0.003 10
Dimensions in mm Min 0.47 2.67 0.66 0.41 0.20 13.89 11.35 1.12 12.45 9.91 14.86 12.32 1.91 0 Nom 2.80 0.71 0.46 0.254 13.97 11.43 1.27 12.95 10.41 14.99 12.45 2.29 Max 3.40 2.93 0.81 0.54 0.35 14.05 11.51 1.42 13.46 10.92 15.11 12.57 2.41 0.075 10
Notes: 1. Dimensions D and E do not include resin fins. 2. Dimensions GD & GE are for PC Board surface mount pad pitch design reference only.
(December, 2001, Version 1.0)
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AMIC Technology, Inc.
L
c

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