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IS61C1024 IS61C1024L
128K x 8 HIGH-SPEED CMOS STATIC RAM
FEATURES
* High-speed access time: 12, 15, 20, 25 ns * Low active power: 600 mW (typical) * Low standby power: 500 W (typical) CMOS standby * Output Enable (OE) and two Chip Enable (CE1 and CE2) inputs for ease in applications * Fully static operation: no clock or refresh required * TTL compatible inputs and outputs * Single 5V (10%) power supply * Low power version available: IS61C1024L * Commercial and industrial temperature ranges available
ISSI
MAY 1999
(R)
DESCRIPTION
The ISSI IS61C1024 and IS61C1024L are very high-speed, low power, 131,072-word by 8-bit CMOS static RAMs. They are fabricated using ISSI's high-performance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields higher performance and low power consumption devices. When CE1 is HIGH or CE2 is LOW (deselected), the device assumes a standby mode at which the power dissipation can be reduced by using CMOS input levels. Easy memory expansion is provided by using two Chip Enable inputs, CE1 and CE2. The active LOW Write Enable (WE) controls both writing and reading of the memory. The IS61C1024 and IS61C1024L are available in 32-pin 300-mil SOJ, and TSOP (Type I, 8x20), and sTSOP (Type I, 8 x 13.4) packages.
FUNCTIONAL BLOCK DIAGRAM
A0-A16
DECODER
512 x 2048 MEMORY ARRAY
VCC GND I/O DATA CIRCUIT
I/O0-I/O7
COLUMN I/O
CE1
CE2
OE WE
CONTROL CIRCUIT
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. (c) Copyright 1999, Integrated Silicon Solution, Inc.
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1
IS61C1024 IS61C1024L
PIN CONFIGURATION
32-Pin SOJ
NC A16 A14 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 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC A15 CE2 WE A13 A8 A9 A11 OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3
ISSI
PIN CONFIGURATION
32-Pin TSOP (Type 1) (T) and sTSOP (Type 1) (H)
A11 A9 A8 A13 WE CE2 A15 VCC NC A16 A14 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3 GND I/O2 I/O1 I/O0 A0 A1 A2 A3
(R)
PIN DESCRIPTIONS
A0-A16 Address Inputs Chip Enable 1 Input Chip Enable 2 Input Output Enable Input Write Enable Input Input/Output Power Ground
CE1
CE2
OE WE
I/O0-I/O7 Vcc GND
OPERATING RANGE
Range Commercial Industrial Ambient Temperature 0C to +70C -40C to +85C VCC 5V 10% 5V 10%
TRUTH TABLE
Mode Not Selected (Power-down) Output Disabled Read Write
WE
X X H H L
CE1
H X L L L
CE2 X L H H H
OE
X X H L X
I/O Operation High-Z High-Z High-Z DOUT DIN
Vcc Current ISB1, ISB2 ISB1, ISB2 ICC1, ICC2 ICC1, ICC2 ICC1, ICC2
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IS61C1024 IS61C1024L
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM TBIAS TSTG PT IOUT Parameter Terminal Voltage with Respect to GND Temperature Under Bias Storage Temperature Power Dissipation DC Output Current (LOW) Value -0.5 to +7.0 -55 to +125 -65 to +150 1.5 20 Unit V C C W mA
ISSI
(R)
Notes: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
CAPACITANCE(1,2)
Symbol CIN COUT Parameter Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Max. 5 7 Unit pF pF
Notes: 1. Tested initially and after any design or process changes that may affect these parameters. 2. Test conditions: TA = 25C, f = 1 MHz, Vcc = 5.0V.
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol Parameter VOH VOL VIH VIL ILI ILO Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input Leakage Output Leakage
(1)
Test Conditions VCC = Min., IOH = -4.0 mA VCC = Min., IOL = 8.0 mA
Min. 2.4 -- 2.2 -0.3
Max. -- 0.4 VCC + 0.5 0.8 2 5 2 5
Unit V V V V A A
GND VIN VCC GND VOUT VCC Outputs Disabled
Com. Ind. Com. Ind.
-2 -5 -2 -5
Note: 1. VIL = -3.0V for pulse width less than 10 ns.
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IS61C1024 IS61C1024L
IS61C1024 POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter ICC1 ICC2 ISB1 Vcc Operating Supply Current Vcc Dynamic Operating Supply Current TTL Standby Current (TTL Inputs) Test Conditions VCC = VCC MAX., CE = VIL Com. IOUT = 0 mA, f = 0 Ind. VCC = VCC MAX., CE = VIL Com. IOUT = 0 mA, f = fMAX Ind. VCC = VCC MAX., VIN = VIH or VIL CE1 VIH, f = 0 or CE2 VIL, f = 0 VCC = VCC MAX., CE1 VCC - 0.2V, CE2 0.2V VIN > VCC - 0.2V, or VIN 0.2V, f = 0 Com. Ind. -12 ns Min. Max. -- -- -- -- -- -- 85 110 170 180 40 60 -15 ns Min. Max. -- -- -- -- -- -- 85 110 160 170 40 60 -20 ns Min. Max. -- -- -- -- -- -- 85 110 150 160 40 60
ISSI
-25 ns Min. Max. -- -- -- -- -- -- 85 110 140 150 40 60 Unit mA mA mA
(R)
ISB2
CMOS Standby Current (CMOS Inputs)
Com. Ind.
-- --
30 40
-- --
30 40
-- --
30 40
-- --
30 40
mA
Note: 1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
IS61C1024L POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter ICC1 ICC2 ISB1 Vcc Operating Supply Current Vcc Dynamic Operating Supply Current TTL Standby Current (TTL Inputs) Test Conditions VCC = VCC MAX., CE = VIL Com. IOUT = 0 mA, f = 0 Ind. VCC = VCC MAX., CE = VIL Com. IOUT = 0 mA, f = fMAX Ind. VCC = VCC MAX, VIN = VIH or VIL CE1 VIH, f = 0 or CE2 VIL, f = 0 VCC = VCC MAX., CE1 VCC - 0.2V, CE2 0.2V VIN > VCC - 0.2V, or VIN 0.2V, f = 0 Com. Ind. -15 ns Min. Max. -- -- -- -- -- -- 85 110 160 170 40 60 -20 ns Min. Max. -- -- -- -- -- -- 85 110 150 160 40 60 -25 ns Min. Max. -- -- -- -- -- -- 85 110 140 150 40 60 Unit mA mA mA
ISB2
CMOS Standby Current (CMOS Inputs)
Com. Ind.
-- --
500 750
-- --
500 750
-- --
500 750
A
Note: 1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
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IS61C1024 IS61C1024L
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter Read Cycle Time Address Access Time Output Hold Time -12(2) Min. Max. 12 -- 3 -- -- -- 0 0 2 2 0 0 -- -- 12 -- 12 12 6 -- 6 -- -- 7 -- 12 -15 ns Min. Max. 15 -- 3 -- -- -- 0 0 2 2 0 0 -- -- 15 -- 15 15 7 -- 6 -- -- 8 -- 12 -20 ns Min. Max. 20 -- 3 -- -- -- 0 0 3 3 0 0 -- -- 20 -- 20 20 9 -- 7 -- -- 9 -- 18
ISSI
-25 ns Min. Max. 25 -- 3 -- -- -- 0 0 3 3 0 0 -- -- 25 -- 25 25 9 -- 10 -- -- 10 -- 20 ns ns ns ns ns ns ns ns ns ns ns ns ns
(R)
Unit
tRC tAA tOHA tACE1 tACE2 tDOE tLZOE
(3)
CE1 Access Time
CE2 Access Time
OE Access Time OE to Low-Z Output
tHZOE(3) OE to High-Z Output tLZCE1(3) CE1 to Low-Z Output tLZCE2 tHZCE tPU(4) tPD(4)
(3)
CE2 to Low-Z Output
(3)
CE1 or CE2 to High-Z Output CE1 or CE2 to Power-Up CE1 or CE2 to Power-Down
Notes: 1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading specified in Figure 1. 2. -12 ns device for IS61C1024 only. 3. Tested with the load in Figure 2. Transition is measured 500 mV from steady-state voltage. Not 100% tested. 4. Not 100% tested.
AC TEST CONDITIONS
Parameter Input Pulse Level Input Rise and Fall Times Input and Output Timing and Reference Level Output Load Unit 0V to 3.0V 3 ns 1.5V See Figures 1 and 2
AC TEST LOADS
480 5V
5V 480
OUTPUT 30 pF Including jig and scope 255
OUTPUT 5 pF Including jig and scope 255
Figure 1
Figure 2 5
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IS61C1024 IS61C1024L
AC WAVEFORMS READ CYCLE NO. 1(1,2)
t RC
ADDRESS
ISSI
(R)
t AA t OHA
DOUT
PREVIOUS DATA VALID
t OHA
DATA VALID
READ1.eps
READ CYCLE NO. 2(1,3)
t RC
ADDRESS
t AA
OE
t OHA
t DOE
CE1
t HZOE
t LZOE
CE2
t LZCE1 t LZCE2
DOUT
HIGH-Z
t ACE1 t ACE2
DATA VALID
t HZCE1 t HZCE2
CE2_RD2.eps
Notes: 1. WE is HIGH for a Read Cycle. 2. The device is continuously selected. OE, CE1 = VIL, CE2 = VIH. 3. Address is valid prior to or coincident with CE1 LOW and CE2 HIGH transitions.
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IS61C1024 IS61C1024L
ISSI
-12 ns(3) Min. Max. 12 10 10 10 0 0 10 7 0 -- 2 -- -- -- -- -- -- -- -- -- 7 -- -15 ns Min. Max. 15 12 12 12 0 0 10 8 0 -- 2 -- -- -- -- -- -- -- -- -- 7 -- -20 ns Min. Max. 20 15 15 15 0 0 12 10 0 -- 2 -- -- -- -- -- -- -- -- -- 10 -- -25 ns Min. Max. 25 20 20 20 0 0 15 12 0 -- 2 -- -- -- -- -- -- -- -- -- 12 -- ns ns ns ns ns ns ns ns ns ns ns
(R)
WRITE CYCLE SWITCHING CHARACTERISTICS(1,2) (Over Operating Range, Standard and Low Power)
Symbol Parameter Write Cycle Time Unit
tWC tSCE1 tSCE2 tAW tHA tSA tPWE(4) tSD tHD tHZWE
(5)
CE1 to Write End
CE2 to Write End Address Setup Time to Write End Address Hold from Write End Address Setup Time
WE Pulse Width
Data Setup to Write End Data Hold from Write End
WE LOW to High-Z Output
tLZWE(5) WE HIGH to Low-Z Output
Notes: 1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading specified in Figure 1. 2. The internal write time is defined by the overlap of CE1 LOW, CE2 HIGH and WE LOW. All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the rising or falling edge of the signal that terminates the Write. 3. -12 ns device for IS61C1024 only. 4. Tested with OE HIGH. 5. Tested with the load in Figure 2. Transition is measured 500 mV from steady-state voltage. Not 100% tested.
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IS61C1024 IS61C1024L
AC WAVEFORMS WRITE CYCLE NO. 1 (CE Controlled, OE is HIGH or LOW) (1 )
t WC
ADDRESS
VALID ADDRESS
ISSI
t SCE1 t SCE2
(R)
t SA
CE1
t HA
CE2
WE
t AW t PWE1 t PWE2 t HZWE t LZWE
HIGH-Z
DOUT
DATA UNDEFINED
t SD
DIN
t HD
DATAIN VALID
CE2_WR1.eps
WRITE CYCLE NO. 2 (OE is HIGH During Write Cycle) (1,2)
t WC
ADDRESS
VALID ADDRESS
t HA
OE CE1 CE2 WE
LOW HIGH
t AW t PWE1 t SA t HZWE
DATA UNDEFINED
HIGH-Z
t LZWE
DOUT
t SD
DIN
t HD
DATAIN VALID
CE2_WR2.eps
Notes: 1. The internal write time is defined by the overlap of CE1 LOW, CE2 HIGH and WE LOW. All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the rising or falling edge of the signal that terminates the Write. 2. I/O will assume the High-Z state if OE = VIH.
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IS61C1024 IS61C1024L
WRITE CYCLE NO. 3 (OE is LOW During Write Cycle) (1)
t WC
ADDRESS
VALID ADDRESS
ISSI
(R)
OE CE1
LOW LOW HIGH
t HA
CE2
t AW t PWE2
WE
t SA
DOUT
DATA UNDEFINED
t HZWE
HIGH-Z
t LZWE
t SD
DIN
t HD
DATAIN VALID
CE2_WR3.eps
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IS61C1024 IS61C1024L
IS61C1024 STANDARD VERSION ORDERING INFORMATION Commercial Range: 0C to +70C
Speed (ns) 12 12 12 12 15 15 15 15 20 20 20 20 25 25 25 25 Order Part No. IS61C1024-12J IS61C1024-12K IS61C1024-12H IS61C1024-12T IS61C1024-15J IS61C1024-15K IS61C1024-15H IS61C1024-15T IS61C1024-20J IS61C1024-20K IS61C1024-20H IS61C1024-20T IS61C1024-25J IS61C1024-25K IS61C1024-25H IS61C1024-25T Package 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I)
ISSI
IS61C1024 STANDARD VERSION ORDERING INFORMATION Industrial Range: -40C to +85C
Speed (ns) 12 12 12 12 15 15 15 15 20 20 20 20 25 25 25 25 Order Part No. IS61C1024-12JI IS61C1024-12KI IS61C1024-12HI IS61C1024-12TI IS61C1024-15JI IS61C1024-15KI IS61C1024-15HI IS61C1024-15TI IS61C1024-20JI IS61C1024-20KI IS61C1024-20HI IS61C1024-20TI IS61C1024-25JI IS61C1024-25KI IS61C1024-25HI IS61C1024-25TI Package 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I)
(R)
IS61C1024L LOW POWER VERSION ORDERING INFORMATION Commercial Range: 0C to +70C
Speed (ns) 15 Order Part No. IS61C1024L-15J IS61C1024L-15K IS61C1024L-15H IS61C1024L-15T IS61C1024L-20J IS61C1024L-20K IS61C1024L-20H IS61C1024L-20T IS61C1024L-25J IS61C1024L-25K IS61C1024L-25H IS61C1024L-25T Package 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I)
IS61C1024L LOW POWER VERSION ORDERING INFORMATION Industrial Range: -40C to +85C
Speed (ns) 15 Order Part No. IS61C1024L-15JI IS61C1024L-15KI IS61C1024L-12HI IS61C1024L-15TI IS61C1024L-20JI IS61C1024L-20KI IS61C1024L-12HI IS61C1024L-20TI IS61C1024L-25JI IS61C1024L-25KI IS61C1024L-12HI IS61C1024L-25TI Package 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I) 300-mil Plastic SOJ 400-mil Plastic SOJ sTSOP (Type I) TSOP (Type I)
20
20
25
25
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