28C256T
256K EEPROM (32K x 8-Bit) EEPROM
TABLE 1. 28C256T PINOUT DESCRIPTION
PIN
SYMBOL
DESCRIPTION
*10-3, 25, 24,
A0-A14
Address
21, 23, 2, 26, 1
11-13, 15-19
I/O0-I/O7
OE
Input/Output
Output Enable
Chip Enable
Write Enable
Power Supply
Ground
22
20
27
28
14
CE
WE
VCC
VSS
*Refer to diagram on Page 1 for pin relationship.
TABLE 2. 28C256T ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MIN
MAX
UNITS
Supply Voltage (Relative to VSS)
Input Voltage (Relative to VSS)
Operating Temperature Range2
Storage Temperature Range
VCC
VIN
-0.6
-0.51
-55
7.0
7.0
V
V
°C
°C
TOPR
TSTG
125
150
-65
1. VIN = -3.0 V for pulse width > 50 ns.
2. Including electrical characteristics and data retention.
TABLE 3. 28C256T DELTA LIMITS
PARAMETER
VARIATION
ICC
1
±10%
±10%
±10%
±10%
I
I
I
CC2
CC3A
CC3B
All data sheets are subject to change without notice
2
03.20.15 Rev 6
©2015 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
