23C256 Просмотр технического описания (PDF) - NEC => Renesas Technology
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23C256 Datasheet PDF : 32 Pages
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Read Cycle Timing Chart (1)
(In case of read mode (1))
CLE
tCLS
/CE
tCS
/WE
ALE
tCLH
tCH
tCS
tWC
tALH
tALS tWP tWH
tR
tALH
tAR2
tRR
tRC
tRC
tCEH
tCRY
tCHZ
/RE
I/O0 to I/O7
tDS tDH
00H
tWB
tDS
tDS
tDS
A0 to A7 A9 to A16 A17 to A24
High-Z
tDH
tDH
tDH
tRP tREH
tRHZ
DOUT
N
tREA
DOUT
N+1
tRHZ
DOUT
High-Z
527
tRB
R, /B
Access
page M
Output page M data
Remarks 1. Start address (SA) specification when read is performed with command 00H. N: 0 to 255
2. Then time (tCRY) from /CE high to Ready is cancelled depends on the pull-up register of the R,/B output pin.
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