CAT24WC66_06 Datasheet, PDF (1/13 Pages) Catalyst Semiconductor – 64K-bit I2C Serial EEPROM with Partial Array Write Protection

CAT24WC66
64K-bit I²C Serial EEPROM with Partial Array Write Protection
FEATURES
„ 400kHz I²C Bus
„ 1.8V to 5.5V supply voltage range
„ Cascadable for up to eight devices
„ 32-byte page write buffer
„ Self-timed write cycle with auto-clear
„ Schmitt trigger inputs for noise protection
„ Write protection
— Top 1/4 array protected when WP at V_IH
„ 1,000,000 program/erase cycles
„ 100 year data retention
„ Industrial and automotive temperature ranges
„ RoHS-compliant packages
DESCRIPTION
The CAT24WC66 is a 64K-bit Serial CMOS EEPROM
internally organized as 8192 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces device power requirements. The CAT24WC66
features a 32-byte page write buffer. The device
operates via the I²C bus serial interface and is
available in 8-pin DIP or 8-pin SOIC packages.
For Ordering Information details, see page 12.
PIN CONFIGURATION
FUNCTIONAL SYMBOL
DIP Package (L)
SOIC Package (W, X)
VCC
A0 ¹
8 _VCC
A0 ¹
8 _VCC
A1 ²
7 _WP
A1 ²
7 _WP
SCL
A2 ³
6 _SCL
A2 ³
6 _SCL
VSS 4
5 _{SDA VSS} 4
5 _SDA
A2, A1, A0
CAT24CW66
SDA
PIN FUNCTION
WP
Pin Name Function
A0, A1, A2 Device Address Inputs
VSS
SDA
Serial Data/Address
SCL
Serial Clock
WP
Write Protect
V_CC
Power Supply
V_SS
Ground
* Catalyst Semiconductor is licensed by Philips Corporation to carry
the I2C Bus Protocol.
© 2006 Catalyst Semiconductor, Inc.
1
Characteristics subject to change without notice
Doc. No. 1037 Rev. J