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CAT28C64BJ-12 Fiches technique(PDF) 1 Page - Catalyst Semiconductor

No de pièce CAT28C64BJ-12
Description  64K-Bit CMOS PARALLEL E2PROM
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Fabricant  CATALYST [Catalyst Semiconductor]
Site Internet  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

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CAT28C64B
64K-Bit CMOS PARALLEL E2PROM
FEATURES
s Fast Read Access Times:
– 120/150ns
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:
– 5ms Max.
s CMOS and TTL Compatible I/O
s Hardware and Software Write Protection
DESCRIPTION
The CAT28C64B is a fast, low power, 5V-only CMOS
Parallel E2PROM organized as 8K 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 and Toggle status bits signal the start and
end of the self-timed write cycle. Additionally, the
CAT28C64B features hardware and software write pro-
tection.
5094 FHD F02
ADDR. BUFFER
& LATCHES
ADDR. BUFFER
& LATCHES
INADVERTENT
WRITE
PROTECTION
CONTROL
LOGIC
TIMER
ROW
DECODER
COLUMN
DECODER
HIGH VOLTAGE
GENERATOR
A5–A12
CE
OE
WE
A0–A4
I/O0–I/O7
I/O BUFFERS
8,192 x 8
E2PROM
ARRAY
32 BYTE PAGE
REGISTER
VCC
DATA POLLING
AND
TOGGLE BIT
BLOCK DIAGRAM
s Commercial, Industrial and Automotive
Temperature Ranges
s Automatic Page Write Operation:
– 1 to 32 Bytes in 5ms
– Page Load Timer
s End of Write Detection:
– Toggle Bit
DATA
DATA
DATA
DATA
DATA Polling
s 100,000 Program/Erase Cycles
s 100 Year Data Retention
The CAT28C64B is manufactured using Catalyst’s ad-
vanced 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, 28-pin SOIC, or, 32-
pin PLCC package .
© 1999 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 25006-0A 2/98 P-1


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