參數(shù)資料
型號(hào): UPD43257BGU-85LL
廠商: NEC Corp.
英文描述: 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
中文描述: 256K位CMOS靜態(tài)RAM 32K的詞8位
文件頁(yè)數(shù): 5/20頁(yè)
文件大?。?/td> 157K
代理商: UPD43257BGU-85LL
Data Sheet M10693EJ7V0DS00
5
μ
PD43257B
Block Diagram
Address buffer
Memory cell array
262,144 bits
Input data
controller
A0
A14
I/O8
Sense amplifier /
Switching circuit
Column decoder
/CE1
/WE
CE2
Output data
controller
I/O1
V
CC
GND
Address
buffer
Row
decoder
Truth Table
/CE1
CE2
/WE
Mode
I/O
Supply current
H
×
×
Not selected
High impedance
I
SB
×
L
×
L
H
H
Read
D
OUT
I
CCA
L
H
L
Write
D
IN
Remark
×
: V
IH
or V
IL
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