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參數(shù)資料
| 型號(hào)： | GVT7364A16TS-20LI |
| 英文描述： | x16 SRAM |
| 中文描述： | x16的SRAM |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 87K |
| 代理商： | GVT7364A16TS-20LI |
January 22, 199 9
Rev. 1/99
3
Galvantech, Inc. reserves the right to change products or specifications without notice
GVT73128A16
REVOLUTIONARY PINOUT 128K X 16
GALVANTECH
, NC.
TRUTH TABLE
PIN DESCRIPTIONS
MODE
CE#
WE#
OE#
BLE#
BHE#
DQ1-
DQ8
DQ9-
DQ16
POWER
LOW BYTE READ (DQ1-DQ8)
HIGH BYTE READ (DQ9-DQ16)
WORD READ (DQ1-DQ16)
LOW BYTE WRITE (DQ1-DQ8)
HIGH BYTE WRITE (DQ9-DQ16)
WORD WRITE (DQ1-DQ16)
L
L
L
L
L
L
L
L
H
H
H
L
L
L
X
H
L
L
L
X
X
X
X
H
L
H
L
L
H
L
H
X
H
L
L
H
L
L
H
X
Q
HIGH-Z
Q
Q
HIGH-Z
D
D
HIGH-Z
HIGH-Z
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
HIGH-Z
Q
D
HIGH-Z
D
HIGH-Z
HIGH-Z
OUTPUT DISABLE
STANDBY
H
X
X
X
X
HIGH-Z
HIGH-Z
STANDBY
SOJ & TSOP
Pin Number s
5, 4, 3, 2, 1, 44, 43,
42, 27, 26, 25, 24,
22, 21, 20, 19, 18
17
44-Pin TQFP
Pin Number s
13-17, 19-22, 37-44
SYMBOL
TYPE
DESCRIPTIO N
A0-A16
Input
Addresses Inputs: These inputs determine which cell is addressed .
12
WE#
Input
Write Enable: This input determines if the cycle is a READ or
WRITE cycle. WE# is LOW for a WRITE cycle and HIGH for a
READ cycle.
Chip Enable: This active LOW input is used to enable the device.
When CE# is LOW, the chip is selected. When CE# is HIGH, the
chip is disabled and automatically goes into standby power mode .
Byte Enable: These active LOW inputs allow individual bytes to be
written or read. When BLE# is LOW, the data is written to or read
from the lower byte (DQ1-DQ8). When BHE# is LOW, the data is
written to or read from the higher byte (DQ9-DQ16).
Output Enable: This active LOW input enables the output drivers .
Input/Output SRAM Data I/O: Data inputs and data outputs. Lower byte is DQ1-
DQ8 and upper byte is DQ9-DQ16.
6
1
CE#
Input
39, 40
34, 35
BLE#, BHE#
Input
41
36
OE#
Input
7, 8, 9, 10, 13, 14,
15, 16, 29, 30, 31,
32, 35, 36, 37, 38
11, 33
12, 34
23, 28
2, 3, 4, 5, 8, 9,
10, 11, 24,25, 26,
27, 30, 31, 32, 33
6, 28
7, 29
18, 23
DQ1-DQ16
VCC
VSS
NC
Supply
Supply
-
Power Supply: 3.3V
+
0.3V
Ground
No connect
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| GVT73128A16J-12 | x16 SRAM |
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