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CAT28C257

Features: ` Fast Read Access Times: 90/120/150 ns` Low Power CMOS Dissipation:Active: 25 mA Max.Standby: 150 mA Max.` Simple Write Operation:On-Chip Address and Data LatchesSelf-Timed Write Cycle with Auto-Clear` Fast Write Cycle Time:5ms Max` CMOS and TTL Compatible I/O` Automatic Page Write Oper...

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SeekIC No. : 004310605 Detail

CAT28C257: Features: ` Fast Read Access Times: 90/120/150 ns` Low Power CMOS Dissipation:Active: 25 mA Max.Standby: 150 mA Max.` Simple Write Operation:On-Chip Address and Data LatchesSelf-Timed Write Cycle wi...

CAT28C257 Data Sheet

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Part Number:
CAT28C257
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Fast Read Access Times: 90/120/150 ns
` Low Power CMOS Dissipation:
Active: 25 mA Max.
Standby: 150 mA Max.
` Simple Write Operation:
On-Chip Address and Data Latches
Self-Timed Write Cycle with Auto-Clear
` Fast Write Cycle Time:
5ms Max
` CMOS and TTL Compatible I/O
` Automatic Page Write Operation:
1 to 128 Bytes in 5ms
Page Load Timer
` End of Write Detection:
Toggle Bit
DATA Polling
` Hardware and Software Write Protection
` 100,000 Program/Erase Cycles
` 100 Year Data Retention
` Commercial, Industrial and Automotive Temperature Ranges




Pinout

Connection Diagram




Specifications

Temperature Under Bias ................. 55 to +125
Storage Temperature ......................65 to +150
Voltage on Any Pin with
Respect to Ground(2) ........2.0V to +VCC + 2.0V
VCC with Respect to Ground ............ 2.0V to +7.0V
Package Power Dissipation
Capability (Ta = 25°C)................................. 1.0W
Lead Soldering Temperature (10 secs) ............. 300
Output Short Circuit Current(3) .....................100 mA




Description


The CAT28C257 is a fast, low power, 5V-only CMOS parallel EEPROM organized as 32K x 8-bits. It requires a simple interface for in-system programming. On-chip address and data latches, self-timed write cycle with autoclear 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 selftimed write cycle. Additionally, the CAT28C257 features hardware and software write protection.

The CAT28C257 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 or 32-pin PLCC packages.






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