HN27C4000G Datasheet, PDF (19/20 Pages) Hitachi Semiconductor – 524288-Word ®8-Bit/262144-Word X 16-Bit CMOS UV Erasable and Programmable ROM

Option Page Programming Timing Waveform
HN27C4000G Series
A2 – A17
Page program mode
Program data latch Page program
Word program mode
Program verify Program
t _AH
t _AS
t _AH
t _AS
t _AH
A0, A1
t _DS
t _DH
Data
t _VPS
Data in
stable
VPP ^VPP
VCC
t _VCS
VCC+ 1.25
VCC
VCC
t _OHS
tOHH ^t CES
t _DS
t _DF
Data
out
valid
t _VPS ^t OE t _DF
Data in stable
t _VRS
t _VLW
t _CES
CE
VH
OE
VIH
VIL
t _LW
t _OES
t _PW
t _PW
19