
AT28C64B
Software Protected Write Cycle Waveforms(1)(2)
OE
CE
tWPH
tBLC
tWP
WE
tAS
tAH
tDH
A0 -A5
A6 - A12
tDS
DATA
tWC
Notes: 1. A6 through A12 must specify the same page address during each high to low transition of WE (or CE) after the software
code has been entered.
2. OE must be high only when WE and CE are both low.
11
0270I–PEEPR–08/03