ISSI IS61C1024-25KI

ISSI
IS61C1024
IS61C1024L
128K x 8 HIGH-SPEED
CMOS STATIC RAM
®
MAY 1999
FEATURES
DESCRIPTION
• High-speed access time: 12, 15, 20, 25 ns
• Low active power: 600 mW (typical)
• Low standby power: 500 µW (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
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
I/O
DATA
CIRCUIT
COLUMN I/O
VCC
GND
I/O0-I/O7
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. © Copyright 1999, Integrated Silicon Solution, Inc.
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1
ISSI
IS61C1024
IS61C1024L
PIN CONFIGURATION
PIN CONFIGURATION
32-Pin SOJ
32-Pin TSOP (Type 1) (T) and sTSOP (Type 1) (H)
NC
1
32
VCC
A16
2
31
A15
A14
3
30
CE2
A12
4
29
WE
A7
5
28
A13
A6
6
27
A8
A5
7
26
A9
A4
8
25
A11
A3
9
24
OE
A2
10
23
A10
A1
11
22
CE1
A0
12
21
I/O7
I/O0
13
20
I/O6
I/O1
14
19
I/O5
I/O2
15
18
I/O4
GND
16
17
I/O3
A11
A9
A8
A13
WE
CE2
A15
VCC
NC
A16
A14
A12
A7
A6
A5
A4
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
®
OE
A10
CE1
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A3
PIN DESCRIPTIONS
A0-A16
Address Inputs
CE1
Chip Enable 1 Input
CE2
Chip Enable 2 Input
OE
Output Enable Input
WE
Write Enable Input
I/O0-I/O7
Input/Output
Vcc
Power
GND
Ground
OPERATING RANGE
Range
Commercial
Ambient Temperature
0°C to +70°C
VCC
5V ± 10%
–40°C to +85°C
5V ± 10%
Industrial
TRUTH TABLE
Mode
Not Selected
(Power-down)
Output Disabled
Read
Write
WE
CE1
CE2
OE
X
X
H
H
L
H
X
L
L
L
X
L
H
H
H
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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ISSI
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
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
Parameter
CIN
Input Capacitance
COUT
Output Capacitance
Conditions
Max.
Unit
VIN = 0V
5
pF
VOUT = 0V
7
pF
Notes:
1. Tested initially and after any design or process changes that may affect these parameters.
2. Test conditions: TA = 25°C, f = 1 MHz, Vcc = 5.0V.
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol Parameter
Test Conditions
Min.
Max.
Unit
VOH
Output HIGH Voltage
VCC = Min., IOH = –4.0 mA
2.4
—
V
VOL
Output LOW Voltage
VCC = Min., IOL = 8.0 mA
—
0.4
V
VIH
Input HIGH Voltage
2.2
VCC + 0.5
V
–0.3
0.8
V
(1)
VIL
Input LOW Voltage
ILI
Input Leakage
GND ≤ VIN ≤ VCC
Com.
Ind.
–2
–5
2
5
µA
ILO
Output Leakage
GND ≤ VOUT ≤ VCC
Outputs Disabled
Com.
Ind.
–2
–5
2
5
µA
Note:
1. VIL = –3.0V for pulse width less than 10 ns.
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05/12/99
3
®
ISSI
IS61C1024
IS61C1024L
®
IS61C1024 POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
-12 ns
Min. Max.
-15 ns
Min. Max.
-20 ns
Min. Max.
-25 ns
Min. Max.
Symbol Parameter
Test Conditions
Unit
ICC1
Vcc Operating
Supply Current
VCC = VCC MAX., CE = VIL Com.
IOUT = 0 mA, f = 0
Ind.
—
—
85
110
—
—
85
110
—
—
85
110
—
—
85
110
mA
ICC2
Vcc Dynamic Operating
Supply Current
VCC = VCC MAX., CE = VIL Com.
IOUT = 0 mA, f = fMAX
Ind.
—
—
170
180
—
—
160
170
—
—
150
160
—
—
140
150
mA
ISB1
TTL Standby Current
(TTL Inputs)
VCC = VCC MAX.,
VIN = VIH or VIL
CE1 ≥ VIH, f = 0 or
CE2 ≤ VIL, f = 0
Com.
Ind.
—
—
40
60
—
—
40
60
—
—
40
60
—
—
40
60
mA
ISB2
CMOS Standby
Current (CMOS Inputs)
VCC = VCC MAX.,
CE1 ≤ VCC – 0.2V,
CE2 ≤ 0.2V
VIN > VCC – 0.2V, or
VIN ≤ 0.2V, f = 0
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)
-15 ns
Min. Max.
-20 ns
Min. Max.
-25 ns
Min. Max.
Symbol Parameter
Test Conditions
Unit
ICC1
Vcc Operating
Supply Current
VCC = VCC MAX., CE = VIL Com.
IOUT = 0 mA, f = 0
Ind.
—
—
85
110
—
—
85
110
—
—
85
110
mA
ICC2
Vcc Dynamic Operating
Supply Current
VCC = VCC MAX., CE = VIL Com.
IOUT = 0 mA, f = fMAX
Ind.
—
—
160
170
—
—
150
160
—
—
140
150
mA
ISB1
TTL Standby Current
(TTL Inputs)
VCC = VCC MAX,
VIN = VIH or VIL
CE1 ≥ VIH, f = 0 or
CE2 ≤ VIL, f = 0
Com.
Ind.
—
—
40
60
—
—
40
60
—
—
40
60
mA
ISB2
CMOS Standby
Current (CMOS Inputs)
VCC = VCC MAX.,
CE1 ≤ VCC – 0.2V,
CE2 ≤ 0.2V
VIN > VCC – 0.2V, or
VIN ≤ 0.2V, f = 0
Com.
Ind.
—
—
500
750
—
—
500
750
—
—
500
750
µA
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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ISSI
IS61C1024
IS61C1024L
®
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
Symbol
-12(2)
Min. Max.
Parameter
-15 ns
Min. Max.
-20 ns
Min. Max.
-25 ns
Min. Max.
Unit
tRC
Read Cycle Time
12
—
15
—
20
—
25
—
ns
tAA
Address Access Time
—
12
—
15
—
20
—
25
ns
tOHA
Output Hold Time
3
—
3
—
3
—
3
—
ns
tACE1
CE1 Access Time
—
12
—
15
—
20
—
25
ns
tACE2
CE2 Access Time
—
12
—
15
—
20
—
25
ns
tDOE
OE Access Time
—
6
—
7
—
9
—
9
ns
OE to Low-Z Output
0
—
0
—
0
—
0
—
ns
tHZOE(3) OE to High-Z Output
0
6
0
6
0
7
0
10
ns
tLZCE1(3) CE1 to Low-Z Output
2
—
2
—
3
—
3
—
ns
tLZCE2
CE2 to Low-Z Output
2
—
2
—
3
—
3
—
ns
CE1 or CE2 to High-Z Output
0
7
0
8
0
9
0
10
ns
tPU(4)
CE1 or CE2 to Power-Up
0
—
0
—
0
—
0
—
ns
tPD(4)
CE1 or CE2 to Power-Down
—
12
—
12
—
18
—
20
ns
tLZOE
(3)
tHZCE
(3)
(3)
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 Ω
480 Ω
5V
5V
OUTPUT
OUTPUT
30 pF
Including
jig and
scope
255 Ω
5 pF
Including
jig and
scope
Figure 1
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SR028-1K
05/12/99
Figure 2
5
255 Ω
ISSI
IS61C1024
IS61C1024L
®
AC WAVEFORMS
READ CYCLE NO. 1(1,2)
t RC
ADDRESS
t AA
t OHA
t OHA
DOUT
DATA VALID
PREVIOUS DATA VALID
READ1.eps
READ CYCLE NO. 2(1,3)
t RC
ADDRESS
t AA
t OHA
OE
t HZOE
t DOE
t LZOE
CE1
CE2
t ACE1
t ACE2
t LZCE1
t LZCE2
DOUT
HIGH-Z
t HZCE1
t HZCE2
DATA VALID
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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SR028-1J
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ISSI
IS61C1024
IS61C1024L
®
WRITE CYCLE SWITCHING CHARACTERISTICS(1,2) (Over Operating Range, Standard and Low Power)
Symbol
Parameter
-12 ns(3)
Min. Max.
-15 ns
Min. Max.
-20 ns
Min. Max.
-25 ns
Min. Max.
Unit
tWC
Write Cycle Time
12
—
15
—
20
—
25
—
ns
tSCE1
CE1 to Write End
10
—
12
—
15
—
20
—
ns
tSCE2
CE2 to Write End
10
—
12
—
15
—
20
—
ns
tAW
Address Setup Time to Write End
10
—
12
—
15
—
20
—
ns
tHA
Address Hold from Write End
0
—
0
—
0
—
0
—
ns
tSA
Address Setup Time
0
—
0
—
0
—
0
—
ns
tPWE(4)
WE Pulse Width
10
—
10
—
12
—
15
—
ns
tSD
Data Setup to Write End
7
—
8
—
10
—
12
—
ns
Data Hold from Write End
0
—
0
—
0
—
0
—
ns
WE LOW to High-Z Output
—
7
—
7
—
10
—
12
ns
tLZWE(5) WE HIGH to Low-Z Output
2
—
2
—
2
—
2
—
ns
tHD
tHZWE
(5)
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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7
ISSI
IS61C1024
IS61C1024L
®
AC WAVEFORMS
WRITE CYCLE NO. 1 (CE Controlled, OE is HIGH or LOW) (1 )
t WC
VALID ADDRESS
ADDRESS
t SCE1
t SCE2
t SA
t HA
CE1
CE2
t AW
t PWE1
t PWE2
WE
t HZWE
DOUT
t LZWE
HIGH-Z
DATA UNDEFINED
t SD
t HD
DATAIN VALID
DIN
CE2_WR1.eps
WRITE CYCLE NO. 2 (OE is HIGH During Write Cycle) (1,2)
t WC
ADDRESS
VALID ADDRESS
t HA
OE
CE1
LOW
HIGH
CE2
t AW
t PWE1
WE
t HZWE
t SA
DOUT
DATA UNDEFINED
t LZWE
HIGH-Z
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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ISSI
IS61C1024
IS61C1024L
WRITE CYCLE NO. 3 (OE is LOW During Write Cycle) (1)
t WC
ADDRESS
VALID ADDRESS
OE
LOW
CE1
LOW
t HA
HIGH
CE2
t AW
t PWE2
WE
t SA
DOUT
DATA UNDEFINED
t HZWE
t LZWE
HIGH-Z
t SD
DIN
t HD
DATAIN VALID
CE2_WR3.eps
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SR028-1K
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®
ISSI
IS61C1024
IS61C1024L
IS61C1024 STANDARD VERSION
ORDERING INFORMATION
Commercial Range: 0°C to +70°C
IS61C1024 STANDARD VERSION
ORDERING INFORMATION
Industrial Range: –40°C to +85°C
Speed (ns)
Order Part No.
Package
Speed (ns)
Order Part No.
Package
12
12
12
12
IS61C1024-12J
IS61C1024-12K
IS61C1024-12H
IS61C1024-12T
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
12
12
12
12
IS61C1024-12JI
IS61C1024-12KI
IS61C1024-12HI
IS61C1024-12TI
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
15
15
15
15
IS61C1024-15J
IS61C1024-15K
IS61C1024-15H
IS61C1024-15T
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
15
15
15
15
IS61C1024-15JI
IS61C1024-15KI
IS61C1024-15HI
IS61C1024-15TI
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
20
20
20
20
IS61C1024-20J
IS61C1024-20K
IS61C1024-20H
IS61C1024-20T
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
20
20
20
20
IS61C1024-20JI
IS61C1024-20KI
IS61C1024-20HI
IS61C1024-20TI
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
25
25
25
25
IS61C1024-25J
IS61C1024-25K
IS61C1024-25H
IS61C1024-25T
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
25
25
25
25
IS61C1024-25JI
IS61C1024-25KI
IS61C1024-25HI
IS61C1024-25TI
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
IS61C1024L LOW POWER VERSION
ORDERING INFORMATION
Commercial Range: 0°C to +70°C
IS61C1024L LOW POWER VERSION
ORDERING INFORMATION
Industrial Range: –40°C to +85°C
Speed (ns)
Speed (ns)
Order Part No.
Package
15
IS61C1024L-15JI
IS61C1024L-15KI
IS61C1024L-12HI
IS61C1024L-15TI
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
IS61C1024L-20JI
IS61C1024L-20KI
IS61C1024L-12HI
IS61C1024L-20TI
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)
25
IS61C1024L-25JI
IS61C1024L-25KI
IS61C1024L-12HI
IS61C1024L-25TI
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
Order Part No.
Package
15
IS61C1024L-15J
IS61C1024L-15K
IS61C1024L-15H
IS61C1024L-15T
300-mil Plastic SOJ
400-mil Plastic SOJ
sTSOP (Type I)
TSOP (Type I)
20
IS61C1024L-20J
IS61C1024L-20K
IS61C1024L-20H
IS61C1024L-20T
25
IS61C1024L-25J
IS61C1024L-25K
IS61C1024L-25H
IS61C1024L-25T
®
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