256K EEPROM (32K x 8-Bit) EEPROM
T
ABLE
1. 28C256T P
INOUT
D
ESCRIPTION
P
IN
*10-3, 25, 24,
21, 23, 2, 26, 1
11-13, 15-19
22
20
27
28
14
S
YMBOL
A0-A14
I/O0-I/O7
OE
CE
WE
V
CC
V
SS
D
ESCRIPTION
Address
Input/Output
Output Enable
Chip Enable
Write Enable
Power Supply
Ground
28C256T
*Refer to diagram on Page 1 for pin relationship.
T
ABLE
2. 28C256T A
BSOLUTE
M
AXIMUM
R
ATINGS
Memory
P
ARAMETER
Supply Voltage (Relative to V
SS
)
Input Voltage (Relative to V
SS
)
Operating Temperature Range
2
Storage Temperature Range
1. V
IN
= -3.0 V for pulse width > 50 ns.
2. Including electrical characteristics and data retention.
S
YMBOL
V
CC
V
IN
T
OPR
T
STG
M
IN
-0.6
-0.5
1
-55
-65
M
AX
7.0
7.0
125
150
U
NITS
V
V
°
C
°
C
T
ABLE
3. 28C256T D
ELTA
L
IMITS
P
ARAMETER
I
CC
1
I
CC
2
I
CC
3A
I
CC
3B
V
ARIATION
±10%
±10%
±10%
±10%
02.18.02 Rev5
All data sheets are subject to change without notice
2
©2001 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
