HN58S65A Datasheet, PDF (13/18 Pages) Hitachi Semiconductor – 64 k EEPROM (8-kword x 8-bit) Ready/Busy function

HN58S65A Series
Software Data Protection Timing Waveform(1) (in protection mode)
V_CC
CE
WE
Address
Data
1555
AA
0AAA
55
t_BLC
t_WC
1555 Write address
A0
Write data
Software Data Protection Timing Waveform(2) (in non-protection mode)
V_CC
t_WC
Normal active
mode
CE
WE
Address
Data
1555 0AAA 1555 1555 0AAA 1555
AA 55 80 AA 55 20