參數(shù)資料
型號: μPD23C64000AL
廠商: NEC Corp.
英文描述: 64M-Bit Mask-Programmble ROM(64M位掩膜可編程ROM)
中文描述: 6400位掩??删幊坦獗P(6400位掩膜可編程光盤)
文件頁數(shù): 7/16頁
文件大小: 111K
代理商: ΜPD23C64000AL
7
μ
PD23C64000AL
Preliminary Data Sheet
Mask Option
The active levels of output enable pin (/OE, OE, DC) are mask programmable and optional, and can be selected from
among “0” “1” “x” shown in the table below.
Option
/OE, OE, DC
OE active level
0
/OE
L
1
OE
H
x
DC
Don’t care
Operation modes for each option are shown in the tables below.
Operation mode (Option: 0)
/CE
/OE
Mode
Output state
L
Data out
L
H
Active
High impedance
H
H or L
Standby
High impedance
Operation mode (Option: 1)
/CE
OE
Mode
Output state
L
High impedance
L
H
Active
Data out
H
H or L
Standby
High impedance
Operation mode (Option: x)
/CE
DC
Mode
Output state
L
H or L
Active
Data out
H
H or L
Standby
High impedance
Remark
L: Low level input
H: High level input
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