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UPD23C64340 bảng dữ liệu(PDF) 11 Page - NEC

tên linh kiện UPD23C64340
Giải thích chi tiết về linh kiện  64M-BIT MASK-PROGRAMMABLE ROM 8M-WORD BY 8-BIT (BYTE MODE) / 4M-WORD BY 16-BIT (WORD MODE) PAGE ACCESS MODE
PDF  20 Pages
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nhà sản xuất  NEC [NEC]
Trang chủ  http://www.nec.com/
Logo NEC - NEC

UPD23C64340 bảng dữ liệu(HTML) 11 Page - NEC

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11
µµµµPD23C64340, 23C64380
Data Sheet M16335EJ3V
1DS
Read Cycle Timing Chart 2 (Page Access Mode)
(Input)
/CE
(Input)
/OE or OE (Input)
tACC
Data Out
tCE
tOE
tPAC Note 5
tPAC Note 5
O0 to O7,
O8 to O15Note 4
(Input)
(Output)
Data Out
Data Out
High-Z
High-Z
tOH
tOH
tOH
tDF Note 3
A2 to A21
A3 to A21
Upper addressNote 1
A–1Note 2, A0, A1
A–1Note 2, A0, A1, A2
Page addressNote 1
Notes 1. The address differs depending on the product as follows.
Part Number
Upper address
Page address
µPD23C64340
A2 to A21
A–1, A0, A1
µPD23C64380
A3 to A21
A–1, A0, A1, A2
2. During WORD mode, A–1 is O15.
3. tDF is the time from inactivation of Chip Enable input (/CE) or Output Enable input (/OE or OE) to
high impedance state output.
4. During BYTE mode, O8 to O14 are high impedance and O15 is A–1.
5. The definition of page access time is as follows.
[
µµµµPD23C64340 ]
Page access time
Upper address (A2 to A21)
/CE input condition
/OE or OE input condition
inputs condition
tPAC
Before tACC – tPAC
Before tCE – tPAC
Before stabilizing of page
address (A–1, A0, A1)
[
µµµµPD23C64380 ]
Page access time
Upper address (A3 to A21)
/CE input condition
/OE or OE input condition
inputs condition
tPAC
Before tACC – tPAC
Before tCE – tPAC
Before stabilizing of page
address (A–1, A0, A1, A2)



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