AT28HC256N-12JI ATMEL [ATMEL Corporation], AT28HC256N-12JI Datasheet - Page 8

• Manufacturer Part Number: AT28HC256N-12JI
• Description: 256 (32K x 8) High-speed Parallel EEPROM
• Manufacturer: ATMEL [ATMEL Corporation]

Page Mode Write Characteristics
Page Mode Write Waveforms
Notes:
Chip Erase Waveforms
8
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
WPH
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.
AT28HC256N
Parameter
Write Cycle Time
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
t
AS
t
t
S
AH
t
DS
(1)(2)
t
WP
t
t
W
DH
t
WPH
t
H
Min
100
50
50
50
0
0
t
t
V
S
W
H
= t
= 10 ms (min.)
= 12.0V ±0.5V
H
= 5 µs (min.)
t
BLC
Typ
t
WC
Max
150
3
3446B–PEEPR–4/04
Units
ms
ns
ns
ns
ns
ns
µs
ns