CAT24C128 Datasheet, PDF (1/17 Pages) Catalyst Semiconductor – 128-Kb I2C CMOS Serial EEPROM

CAT24C128
128-Kb I²C CMOS Serial EEPROM
FEATURES
■ Supports Standard and Fast I²C Protocol
■ 1.8V to 5.5V Supply Voltage Range
■ 64-Byte Page Write Buffer
■ Hardware Write Protection for entire memory
■ Schmitt Triggers and Noise Suppression Filters
on I²C Bus Inputs (SCL and SDA).
■ Low power CMOS technology
■ 1,000,000 program/erase cycles
■ 100 year data retention
■ Industrial temperature range
■ RoHS-compliant 8-lead PDIP, SOIC and TSSOP
packages
DEVICE DESCRIPTION
The CAT24C128 is a 128-Kb Serial CMOS EEPROM,
internally organized as 256 pages of 64 bytes each, for
a total of 16,384 bytes of 8 bits each.
It features a 64-byte page write buffer and supports
both the Standard (100 kHz) as well as Fast (400 kHz)
I²C protocol.
Write operations can be inhibited by taking the WP pin
High (this protects the entire memory).
For Ordering Information details, see page 14.
PIN CONFIGURATION
PDIP (L)
SOIC (W)
TSSOP (Y)
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
For the location of Pin 1, please consult the
corresponding package drawing.
PIN FUNCTIONS
A₀, A₁, A₂
SDA
SCL
WP
V_CC
V_SS
Device Address Inputs
Serial Data Input/Output
Serial Clock Input
Write Protect Input
Power Supply
Ground
FUNCTIONAL SYMBOL
VCC
SCL
A2, A1, A0
WP
CAT24C128
SDA
VSS
* Catalyst carries the I²C protocol under a license from the Philips Corporation.
© 2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1103, Rev. G