CAT28C16A

CAT28C16A 16K-Bit CMOS PARALLEL E2PROM FEATURES s Fast Read Access Times: 200 ns s Low Power CMOS Dissipation: s End of Write Detection: DATA Polling s Hardware Write Protection s CMOS and TTL Compatible I/O s 10,000 Program/Erase Cycles s 10 Year Data Retention s Commercial, Industrial and Automotive –Active: 25 mA Max. –Standby: 100 µA Max. s Simple Write Operation: –On-Chip Address and Data Latches –Self-Timed Write Cycle with Auto-Clear s Fast Write Cycle Time: 10ms Max Temperature Ranges DESCRIPTION The CAT28C16A is a fast, low power, 5V-only CMOS Parallel E2PROM organized as 2K 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 signals the start and end of the self-timed write cycle. Additionally, the CAT28C16A features hardware write protection. The CAT28C16A is manufactured using Catalyst’s advanced CMOS floating gate technology. It is designed to endure 10,000 program/erase cycles and has a data retention of 10 years. The device is available in JEDEC approved 24-pin DIP and SOIC or 32-pin PLCC packages. BLOCK DIAGRAM A4–A10 ADDR. BUFFER & LATCHES INADVERTENT WRITE PROTECTION ROW DECODER 2,048 x 8 E2PROM ARRAY VCC HIGH VOLTAGE GENERATOR CE OE WE CONTROL LOGIC I/O BUFFERS TIMER DATA POLLING I/O0–I/O7 A0–A3 ADDR. BUFFER & LATCHES COLUMN DECODER 5089 FHD F02 © 1998 b...