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参数资料
| 型号： | X24C45SM |
| 英文描述： | Serial AUTOSTORE⑩ NOVRAM |
| 中文描述： | 串行自动存储⑩NOVRAM |
| 文件页数： | 2/14页 |
| 文件大小： | 58K |
| 代理商： | X24C45SM |
2
X24C45
PIN CONFIGURATION
PIN DESCRIPTIONS
Chip Enable (CE)
The Chip Enable input must be HIGH to enable all read/
write operations. CE must remain HIGH following a
Read or Write command until the data transfer is com-
plete. CE LOW places the X24C45 in the low power
standby mode and resets the instruction register. There-
fore, CE must be brought LOW after the completion of an
operation in order to reset the instruction register in
preparation for the next command.
Serial Clock (SK)
The Serial Clock input is used to clock all data into and
out of the device.
Data In (DI)
Data In is the serial data input.
Data Out (DO)
Data Out is the serial data output. It is in the high
impedance state except during data output cycles in
response to a READ instruction.
AUTOSTORE Output (
AS
)
AS
is an open drain output which, when asserted indi-
cates V
CC
has fallen below the AUTOSTORE threshold
(V
ASTH
).
AS
may be wire-ORed with multiple open drain
outputs and used as an interrupt input to a microcontroller
or as an input to a low power reset circuit.
RECALL
RECALL
LOW will initiate an internal transfer of data
from E
2
PROM to the RAM array.
PIN NAMES
Symbol
CE
SK
DI
DO
RECALL
AS
V
CC
V
SS
Description
Chip Enable
Serial Clock
Serial Data In
Serial Data Out
Recall Input
AUTOSTORE Output
+5V
Ground
3833 PGM T01
3833 FHD F02.1
CE
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
AS
RECALL
VSS
X24C45
DIP/SOIC
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