AT28C256-15PU Datasheet, PDF (9/25 Pages) ATMEL Corporation – 256K (32K x 8) Paged Parallel EEPROM

16. Page Mode Characteristics
Symbol Parameter
t_WC
Write Cycle Time (option available)
t_AS
Address Setup Time
t_AH
Address Hold Time
t_DS
Data Setup Time
t_DH
Data Hold Time
t_WP
Write Pulse Width
t_BLC
Byte Load Cycle Time
t_WPH
Write Pulse Width High
AT28C256
AT28C256F
17. Page Mode Write Waveforms⁽¹⁾⁽²⁾
AT28C256
Min
Max
Units
10
ms
3
ms
0
ns
50
ns
50
ns
0
ns
100
ns
150
µs
50
ns
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
t_S = t_H = 5 µsec (min.)
t_W = 10 msec (min.)
V_H = 12.0V ± 0.5V
9
0006M–PEEPR–12/09