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PDF AS7C164 Data sheet ( Hoja de datos )
| Número de pieza | AS7C164 | |
| Descripción | 5V 8K X 8 CMOS SRAM | |
| Fabricantes | Alliance Semiconductor | |
| Logotipo |  |
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• AS7C164 (5V version)
• Commercial temperatur
• Organization: 8,192 words × 8 bits
• Center power and ground pins
• High speed
- 12/15/20 ns address access time
- 3/4/5 ns output enable access time
• Low power consumption: ACTIVE
- 550 mW (AS7C164) / max @ 12 ns
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• Low power consumption: STANDBY
- 11 mW (AS7C164) / max CMOS I/O
• 2.0V data retention
• Easy memory expansion with CE1, CE2, OE inputs
• TTL-compatible, three-state I/O
• 28-pin JEDEC standard package
- 300 mil PDIP and SOJ
• ESD protection ≥ 2000 volts
• Latch-up current ≥ 200 mA
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VCC
GND
A1
A2
A3
A4
A10
A11
A12
Input buffer
128×64×8
Array
(65,536)
Column decoder
AAAAAA
056789
Control
circuit
I/O7
I/O0
WE
OE
CE1
CE2
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28-pin DIP, SOJ (300 mL)
NC
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 Vcc
27 WE
26 CE2
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE1
19 I/O7
18 I/O6
17 I/O5
16 I/O4
15 I/O3
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Maximum address access time
Maximum output enable access time
Maximum operating current
Maximum CMOS standby current
AS7C164-12
12
3
110
2.0
AS7C164-15
15
4
100
2.0
AS7C164-20
20
5
90
2.0
Unit
ns
ns
mA
mA
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56
Copyright ©1999 Alliance Semiconductor. All rights reserved.
1 page  
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Parameter
Write cycle time
Chip enable (CE1) to write end
Chip enable (CE2) to write end
Address setup to write end
Address setup time
Write pulse width
Address hold from write end
Data valid to write end
Data hold time
Write enable to output in high Z
Output active from write end
Symbol
tWC
tCW1
tCW2
tAW
tAS
tWP
tAH
tDW
tDH
tWZ
tOW
-12
Min Max
12 –
9–
9–
9–
0–
8–
0–
6–
0–
–5
3–
-15
Min Max
15 –
10 –
10 –
10 –
0–
9–
0–
7–
0–
–5
3–
-20
Min Max
20 –
12 –
12 –
12 –
0–
12 –
0–
8–
0–
–5
3–
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Address
WE
tWC
tAW
tWP
tAS
DIN
tWZ
DOUT
tAH
tDW
Data valid
tOW
tDH
Unit Notes
ns
ns 12
ns 12
ns
ns 12
ns
ns
ns
ns 4, 5
ns 4, 5
ns 4, 5
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Address
CE1
tWC
tAW
tAS tCW1, tCW2
CE2
tWP
WE
tWZ tDW
DIN Data valid
DOUT
tAH
tDH
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5:
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AS7C164.PDF ] | |
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