CAT25C256

Features:

5 MHz SPI Compatible
1.8 to 6.0 Volt Operation
Hardware and Software Protection
Zero Standby Current
Low Power CMOS Technology
SPI Modes (0,0 &1,1)
Commercial, Industrial and Automotive
   Temperature Ranges
100,000 Program/Erase Cycles
100 Year Data Retention
Self-Timed Write Cycle
8-Pin DIP/SOIC, 16-Pin SOIC, 14-Pin TSSOP
    and 20-Pin TSSOP
64-Byte Page Write Buffer
Block Write Protection
    Protect 1/4, 1/2 or all of E2PROM Array


Pinout




Specifications

Temperature Under Bias ...................... 55 to +125
Storage Temperature ............................65 to +150
Voltage on any Pin with
     Respect to V_SS⁽¹⁾ ..................... 2.0V to +V_CC +2.0V
V_CC with Respect to VSS ........................ 2.0V to +7.0V
Package Power Dissipation
     Capability (T_a = 25).......................................... 1.0W
Lead Soldering Temperature (10 secs) ................... 300
Output Short Circuit Current⁽²⁾ ............................ 100 mA


Description

The CAT25C128/256 is a 128K/256K-Bit SPI Serial CMOS E²PROM internally organized as 16Kx8/32Kx8 bits. Catalyst's advanced CMOS Technology substantially reduces device power requirements. The CAT25C128/256 features a 64-byte page write buffer. The device operates via the SPI bus serial interface and is enabled though a Chip Select (CS). In addition to the Chip Select, the clock input (SCK), data in (SI) and data out (SO) are required to access the device. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. The CAT25C128/ 256 is designed with software and hardware write protection features including Block Lock protection. The device is available in 8-pin DIP, 8-pin SOIC, 16-pin SOIC, 14-pin TSSOP and 20-pin TSSOP packages.