AS7C1025

Manufacturer Part NumberAS7C1025
Description5V/3.3V 128K x8 CMOS SRAM (Revolutionary pinout)
ManufacturerALSC [Alliance Semiconductor Corporation]
AS7C1025 datasheet
 
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March 2001
5V/3.3V 128Kx8 CMOS SRAM (Revolutionary pinout)
Features
• AS7C1025 (5V version)
• AS7C31025 (3.3V version)
• Industrial and commercial temperatures
• Organization: 131,072 words × 8 bits
• High speed
- 12/15/20 ns address access time
- 6,7,8 ns output enable access time
• Low power consumption: ACTIVE
- 715 mW (AS7C1025) / max @ 12 ns (5V)
- 360 mW (AS7C31025) / max @ 12 ns (3.3V)
Logic block diagram
V
CC
GND
Input buffer
A0
A1
A2
512 256 8
A3
Array
A4
A5
(1,048,576)
A6
A7
A8
Column decoder
Selection guide
Maximum address access time
Maximum output enable access time
AS7C1025
Maximum operating current
AS7C31025
AS7C1025
Maximum CMOS standby current
AS7C31025
Shaded areas contain advance information.
3/23/01; v.1.0
®
• Low power consumption: STANDBY
- 27.5 mW (AS7C1025) / max CMOS (5V)
- 1.8 mW (AS7C31025) / max CMOS (3.3V)
• 2.0V data retention
• Easy memory expansion with CE, OE inputs
• Center power and ground
• TTL/LVTTL-compatible, three-state I/O
• JEDEC-standard packages
- 32-pin, 300 mil SOJ
- 32-pin, 400 mil SOJ
- 32-pin TSOP II
• ESD protection
• Latch-up current
Pin arrangement
I/O7
I/O0
WE
Control
OE
circuit
CE
AS7C1025-12
AS7C1025-15
AS7C31025-12
AS7C31025-15
12
3
130
100
5
5
Alliance Semiconductor
AS7C1025
AS7C31025
2000 volts
200 mA
32-pin TSOP II
A0
1
32
A16
31
A1
2
A15
A2
3
30
A14
A3
4
29
A13
28
CE
5
OE
6
27
I/O0
I/O7
26
I/O1
7
I/O6
V
8
25
GND
CC
24
GND
9
V
CC
23
I/O2
10
I/O5
I/O3
11
22
I/O4
21
WE
12
A12
20
A4
13
A11
19
14
A5
A10
18
A6
15
A9
17
16
A8
A7
32-pin SOJ (300 mil)
32-pin SOJ (400 mil)
A16
A0
1
32
31
A15
A1
2
A2
3
30
A14
A3
4
29
A13
CE
5
28
OE
I/O0
6
27
I/O7
I/O1
7
26
I/O6
V
8
25
GND
CC
GND
9
24
V
CC
23
I/O5
I/O2
10
22
I/O4
I/O3
11
21
A12
WE
12
20
A11
A4
13
19
A10
A5
14
A9
A6
15
18
A7
16
17
A8
AS7C1025-20
AS7C31025-20
Unit
15
20
4
5
85
80
mA
85
80
mA
5
5
mA
5
5
mA
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Copyright © Alliance Semiconductor. All rights reserved.
ns
ns

AS7C1025 Summary of contents

  • Page 1

    ... Industrial and commercial temperatures • Organization: 131,072 words × 8 bits • High speed - 12/15/20 ns address access time - 6,7,8 ns output enable access time • Low power consumption: ACTIVE - 715 mW (AS7C1025) / max @ 12 ns (5V) - 360 mW (AS7C31025) / max @ 12 ns (3.3V) Logic block diagram V CC GND Input buffer ...

  • Page 2

    ... I/O pins with the data word referenced by the input address. When either chip enable or output enable is inactive, or write enable is active, output drivers stay in high-impedance mode. All chip inputs and outputs are TTL-compatible, and operation is from a single 5V supply (AS7C1025) or 3.3V supply (AS7C31025). The AS7C1025 and AS7C31025 are packaged in common industry standard packages. ...

  • Page 3

    ... AS7C1025 AS7C31025 commercial industrial /2. 1 Device Min = GND out CC AS7C1025 Max, OUT AS7C31025 AS7C1025 , Max OUT AS7C31025 AS7C1025 0. AS7C31025 OUT = Min CC = Min 2 NOMINAL CC Symbol Signals C A, CE, WE I/O I/O Alliance Semiconductor AS7C1025 AS7C31025 Symbol ...

  • Page 4

    ... OHZ t 0 – – 12 – PD Falling input 3,6,7 Data valid 3,6,8,9 t RC1 OLZ Data valid 50% Alliance Semiconductor AS7C1025 AS7C31025 -20 Max Min Max Unit – 20 – – – – – 3 – ns – 0 – – ...

  • Page 5

    ... – 10, Data valid t WZ 10, Data valid Alliance Semiconductor AS7C1025 AS7C31025 -20 Max Min Max Unit – 20 – ns – 12 – ns – 12 – ns – 0 – ns – 12 – ns – 0 – ns – 12 – ns – ...

  • Page 6

    ... Data retention mode CDR +5V 480W D OUT 255W C(14) GND Figure B: 5V Output load required to meet I specification Alliance Semiconductor AS7C1025 AS7C31025 Min Max Unit 2.0 – – 500 µA 0 – t – RC – 1 µ Thevenin equivalent: ...

  • Page 7

    ... Output sink current I vs. output voltage V OL 140 120 (NOMINAL 100 Output voltage (V) Alliance Semiconductor AS7C1025 AS7C31025 , I Normalized supply current vs. ambient temperature T a 625 (NOMINAL 0.2 0.04 -55 -10 35 125 Ambient temperature (°C) ...

  • Page 8

    ... L 32-pin SOJ 300 mil/400 mil Pin 1 A2 3/23/01; v.1.0 ® 32-pin TSOP Seating plane Seating b Plane c E Alliance Semiconductor AS7C1025 AS7C31025 32-pin TSOP II (mil) Symbol Min A – A1 0.05 b 0.3 C 0.12 D 20.82 E1 10.03 E 11.56 e 1.27 BSC L 0.40 ZD 0.95 REF. 0° 32-pin SOJ 32-pin SOJ ...

  • Page 9

    ... J = SOJ Alliance Semiconductor AS7C1025 AS7C31025 AS7C1025-15TC AS7C1025-20TC AS7C1025-15TI AS7C1025-20TI AS7C31025-15TC AS7C31025-20TC AS7C31025-15TI AS7C31025-20TI AS7C1025-15TJC AS7C1025-20TJC AS7C1025-15TJI AS7C1025-20TJI AS7C31025-15TJC AS7C31025-20TJC AS7C31025-15TJI AS7C31025-20TJI AS7C1025-15JC AS7C1025-20JC AS7C1025-15JI AS7C1025-20JI AS7C31025-15JC AS7C31025-20JC AS7C31025-15JI AS7C31025-20JI X Temperature range C = Commercial, 0°C to 70° Industrial, -40°C to 85°C ...