SMD CAT28C256G15 (15.4mm Width) PLCC-32

256K-Bit PARALLEL EEPROM

FEATURES
¦ Fast read access times: 120/150ns
¦ Low power CMOS dissipation:
–Active: 25 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:
–5ms max
¦ CMOS and TTL compatible I/O
¦ Hardware and software write protection
¦ Automatic page write operation:
–1 to 64 bytes in 5ms
–Page load timer
¦ End of write detection:
–Toggle bit
–DATA polling
¦ 100,000 program/erase cycles
¦ 100 year data retention
¦ Commerical, industrial and automotive
temperature ranges

DESCRIPTION
The CAT28C256 is a fast, low power, 5V-only CMOS
parallel EEPROM 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 autoclear
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 selftimed
write cycle. Additionally, the CAT28C256 features
hardware and software write protection.
The CAT28C256 is manufactured using Catalyst’s advanced
CMOS floating gate technology. It is designed to
endure 100,000 program/erase cycles and has a data
retention of 100 years. The device is available in JEDEC
approved 28-pin DIP, 28-pin TSOP or 32-pin PLCC
packages.