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.
Click to view :
CAT28C256GI-15T.pdf
