CAT24C256 CATALYST [Catalyst Semiconductor], CAT24C256 Datasheet
CAT24C256
Manufacturer Part Number
CAT24C256
Description
256-Kb I2C CMOS Serial EEPROM
Manufacturer
CATALYST [Catalyst Semiconductor]
Datasheet
1.CAT24C256.pdf
(14 pages)
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© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
256-Kb I
fEATuRES
n
n
n
n
n
n
n
n
n
n
PIn funCTIOnS
PIn COnfIguRATIOn
A
SDA
SCL
WP
V
V
for Ordering Information details, see page 13.
0
CC
SS
Supports Standard and fast I
1.8 V to 5.5 V Supply Voltage Range
64-byte Page Write buffer
Hardware Write Protection for entire memory
Schmitt Triggers and noise Suppression filters
on I
low power CMOS technology
1,000,000 program/erase cycles
100 year data retention
Industrial temperature range
RoHS-compliant 8-pin PDIP and SOIC packages
, A
2
, A
C bus Inputs (SCl and SDA).
2
For the location of Pin , please consult the
corresponding package drawing.
Device Address
Serial Data
Serial Clock
Write Protect
Power Supply
Ground
2
V SS
C CMOS Serial EEPROM
A 0
A 1
A 2
SOIC (W, X)
PDIP (l)
1
2
3
4
8
7
6
5
V CC
WP
SCL
SDA
2
C Protocol
* Catalyst carries the I
DEVICE DESCRIPTIOn
The CAT24C256 is a 256-Kb Serial CMOS EEPROM,
internally organized as 52 pages of 64 bytes each, for
a total of 32,768 bytes of 8 bits each.
It features a 64-byte page write buffer and supports
both the Standard (00 kHz) as well as Fast (400 kHz)
I
Write operations can be inhibited by taking the WP pin
High (this protects the entire memory).
External address pins make it possible to address up to
eight CAT24C256 devices on the same bus.
funCTIOnAl SyMbOl
2
C protocol.
A 2 , A 1 , A 0
SCL
WP
2
C protocol under a license from the Philips Corporation.
CAT24C256
V CC
V SS
CAT24C256
Doc. No. 04, Rev. D
SD A
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