參數(shù)資料
型號: μPD23C32082L
廠商: NEC Corp.
英文描述: 32M-Bit Mask Programmable ROM(32M位掩膜可選ROM)
中文描述: 32兆位掩??删幊蘎OM(32M的位掩膜可選光盤)
文件頁數(shù): 10/16頁
文件大小: 84K
代理商: ΜPD23C32082L
Preliminary Data Sheet
10
μ
PD23C32082L
Read Cycle Timing Chart 2 (Page Access Mode)
Notes 1.
During DOUBLE WORD mode, A
1 is O31.
2.
t
DF
is specified when one of /CE, /OE, OE is inactivated.
3.
During WORD mode, O16 to O30 are high impedance and O31 is A
1.
4.
The definitions of page access time is as follows.
Page access time
Upper address (A3 to A19)
/CE input condition
/OE, OE input condition
inputs condition
t
PAC
Before t
ACC
t
PAC
Before t
CE
t
PAC
Before stabilizing of page
address (A
1, A0, A1, A2)
A3 to A19
(Input)
/CE
(Input)
/OE, OE
(Input)
t
ACC
Data 0
t
CE
t
OE
t
PAC
Note 4
t
PAC
Note 4
O0 to O15,
Note 3
O16 to O31
A0, A1, A2
Note 1
(DOUBLE WORD mode)
A–1, A0, A1, A2
(WORD mode)
(Input)
(Output)
Data 1
Data 7
High impedance
High
impedance
t
OH
t
OH
t
OH
t
DF
Note 2
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