AT28C256
16. Page Mode Characteristics
Symbol
Parameter
Min
Max
10
3
Units
ms
ms
ns
AT28C256
tWC
Write Cycle Time (option available)
AT28C256F
tAS
Address Setup Time
Address Hold Time
Data Setup Time
0
50
50
0
tAH
ns
tDS
ns
tDH
Data Hold Time
ns
tWP
tBLC
tWPH
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
100
ns
150
µs
50
ns
17. Page Mode Write Waveforms(1)(2)
Notes: 1. A6 through A14 must specify the same page address during each high to low transition of WE (or CE).
2. OE must be high only when WE and CE are both low.
18. Chip Erase Waveforms
tS = tH = 5 µsec (min.)
tW = 10 msec (min.)
VH = 12.0V 0.5V
9
0006M–PEEPR–12/09