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參數(shù)資料
| 型號： | UPD4632312AF9-B65X-BC2 |
| 廠商： | NEC Corp. |
| 英文描述： | 32M-BIT CMOS MOBILE SPECIFIED RAM 2M-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION |
| 中文描述： | 32兆位CMOS移動指明內(nèi)存200萬字由16位溫度范圍 |
| 文件頁數(shù)： | 8/36頁 |
| 文件大?。?/td> | 320K |
| 代理商： | UPD4632312AF9-B65X-BC2 |
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Preliminary Data Sheet M15874EJ5V0DS
8
μ
PD4632312A-X
1. Initialization
Initialize the
μ
PD4632312A-X at power application using the following sequence to stabilize internal circuits.
(1) Following power application, make MODE high level after fixing MODE to low level for the period of t
VHMH
. Make
/CS high level before making MODE high level.
(2) /CS and MODE are fixed to high level for the period of t
MHCL
.
Normal operation is possible after the completion of initialization.
Figure1-1. Initialization Timing Chart
/CS (Input)
V
CC
MODE (Input)
t
MHCL
Initialization
t
CHMH
t
VHMH
V
CC
(MIN.)
Normal Operation
Cautions 1. Make MODE low level when starting the power supply.
2. t
VHMH
is specified from when the power supply voltage reaches the prescribed minimum value (V
CC
(MIN.)).
Initialization Timing
Parameter
Symbol
MIN.
MAX.
Unit
Power application to MODE low level hold
t
VHMH
50
μ
s
/CS high level to MODE high level
t
CHMH
0
ns
Following power application MODE high level hold to /CS low level
t
MHCL
200
μ
s
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