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CAT28C64BT13-90T Scheda tecnica(PDF) 1 Page - Catalyst Semiconductor

Il numero della parte CAT28C64BT13-90T
Spiegazioni elettronici  64K-Bit CMOS PARALLEL EEPROM
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Produttore elettronici  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

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CAT28C64B
64K-Bit CMOS PARALLEL EEPROM
FEATURES
I Fast read access times:
– 90/120/150ns
I Low power CMOS dissipation:
– Active: 25 mA max.
– Standby: 100
µµµµµA max.
I Simple write operation:
– On-chip address and data latches
– Self-timed write cycle with auto-clear
I Fast write cycle time:
– 5ms max.
I CMOS and TTL compatible I/O
I Hardware and software write protection
DESCRIPTION
The CAT28C64B is a fast, low power, 5V-only CMOS
Parallel EEPROM 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
protection.
BLOCK DIAGRAM
I Commercial, industrial and automotive
temperature ranges
I Automatic page write operation:
– 1 to 32 bytes in 5ms
– Page load timer
I End of write detection:
– Toggle bit
DATA
DATA
DATA
DATA
DATA polling
I 100,000 program/erase cycles
I 100 year data retention
The CAT28C64B 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, TSOP, SOIC, or, 32-pin PLCC
package .
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 1011, Rev. F
ALO
GEN FR
TM
LEAD FREE
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
EEPROM
ARRAY
32 BYTE PAGE
REGISTER
VCC
DATA POLLING
AND
TOGGLE BIT


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