HN27C4000G Datasheet, PDF (12/20 Pages) Hitachi Semiconductor – 524288-Word ®8-Bit/262144-Word X 16-Bit CMOS UV Erasable and Programmable ROM

HN27C4000G Series
Fast High-Reliability Page Programming Timing Waveform
A2 – A17
Page program mode
Program data latch Page program
Program verify
t _AH
t _AS
t _AH
t _AS
A0, A1
t _DH
t _DS
Data
Data in
stable
V_PP ^VPP
V_CC
V_CC + 1.25
V_CC
V_CC
t _VPS
t _VCS
t _OHS
t _OE
t _DF
Data out valid
t _OHH
t _CES t_PW ^t _OES
CE
OE ^VH
V_IH
V_IL
t _LW
t _VRS
12