CAT28C16A_04 Datasheet, PDF (1/10 Pages) Catalyst Semiconductor – 16K-Bit CMOS PARALLEL EEPROM

CAT28C16A
16K-Bit CMOS PARALLEL EEPROM
FEATURES
I Fast read access times: 90 ns, 120 ns, 200 ns
I Low power CMOS cissipation:
–Active: 25 mA Max.
–Standby: 100 µA Max.
I Simple write operation:
–On-chip address and data latches
–Self-timed write cycle with auto-clear
I Fast write cycle time: 10ms max
ALOGEN ^FR
LEA _{D F REETM}
I End of write detection: DATA polling
I Hardware write protection
I CMOS and TTL compatible I/O
I 10,000 or 100,000 Program/erase cycles
I 10 or 100 year data retention
I Commercial, industrial and automotive
temperature ranges
DESCRIPTION
The CAT28C16A is a fast, low power, 5V-only CMOS
Parallel EEPROM 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 V_CC 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
EEPROM
ARRAY
I/O BUFFERS
I/O0–I/O7
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1076, Rev. D