CAT28C16A Datasheet, PDF (1/8 Pages) Catalyst Semiconductor – 16K-Bit CMOS PARALLEL E2PROM

CAT28C16A
16K-Bit CMOS PARALLEL E²PROM
FEATURES
s Fast Read Access Times: 200 ns
s Low Power CMOS Dissipation:
–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
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
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 hard-
ware write protection.
The CAT28C16A is manufactured using Catalyst’s ad-
vanced 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 pack-
ages.
BLOCK DIAGRAM
A4–A10
VCC
CE
OE
WE
A0–A3
ADDR. BUFFER
& LATCHES
INADVERTENT
WRITE
PROTECTION
CONTROL
LOGIC
TIMER
ADDR. BUFFER
& LATCHES
ROW
DECODER
HIGH VOLTAGE
GENERATOR
DATA POLLING
COLUMN
DECODER
2,048 x 8
E²PROM
ARRAY
I/O BUFFERS
I/O0–I/O7
5089 FHD F02
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25033-00 2/98