參數(shù)資料
型號: UPD444004L
廠商: NEC Corp.
英文描述: 4M-BIT CMOS FAST SRAM 1M-WORD BY 4-BIT
中文描述: 4分位CMOS快速靜態(tài)存儲器100萬字的4位
文件頁數(shù): 3/16頁
文件大小: 100K
代理商: UPD444004L
3
μ
PD444004L
Data Sheet M14427EJ4V0DS
Block Diagram
A0
|
A19
A
R
Memory cell array
4,194,304 bits
GND
V
CC
/WE
/OE
/CS
Input data
controller
Sense amplifier /
Switching circuit
Column decoder
Address buffer
I/O1
|
I/O4
Output data
controller
Truth Table
/CS
/OE
/WE
Mode
I/O
Supply current
H
×
×
Not selected
High impedance
I
SB
L
L
H
Read
D
OUT
I
CC
L
×
L
Write
D
IN
L
H
H
Output disable
High impedance
Remark
×
: Don’t care
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