DESCRIPTION

The CAT28LV256 is a fast, low power, low voltage CMOS Parallel E2PROM organized as 32K x 8-bits. It requires a simple interface for in-system programming. On-chip address and data latches, self-timed write cycle with auto-clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling and Toggle status bits signal the start and end of the self-timed write cycle. Additionally, the CAT28LV256 features hardware and software write protection.

FEATURES

■ 3.0V to 3.6V Supply

■ Read Access Times: 200/250/300 ns

■ Low Power CMOS Dissipation:

– Active: 15 mA Max.

– Standby: 150 µA Max.

■ Simple Write Operation:

– On-Chip Address and Data Latches

– Self-Timed Write Cycle with Auto-Clear

■ Fast Write Cycle Time:

– 10ms Max.

■ Commercial, Industrial and Automotive Temperature Ranges

■ CMOS and TTL Compatible I/O

■ Automatic Page Write Operation:

– 1 to 64 Bytes in 10ms

– Page Load Timer

■ End of Write Detection:

– Toggle Bit

– DATA Polling

■ Hardware and Software Write Protection

■ 100,000 Program/Erase Cycles

■ 100 Year Data Retention