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27256 from ST,ST Microelectronics

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27256

Manufacturer: ST

256K (32k x 8) Bit NMOS UV Erasable PROM

Partnumber Manufacturer Quantity Availability
27256 ST 2900 In Stock

Description and Introduction

256K (32k x 8) Bit NMOS UV Erasable PROM Part number 27256 is a 256 Kbit (32K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by STMicroelectronics. The key specifications for this part are:

- **Organization**: 32K x 8
- **Access Time**: 200 ns (max)
- **Operating Voltage**: 5V ± 10%
- **Programming Voltage**: 12.75V (min) to 13.25V (max)
- **Power Consumption**: 
  - Active current: 30 mA (max)
  - Standby current: 100 µA (max)
- **Operating Temperature Range**: 0°C to 70°C
- **Package**: 28-lead PDIP, PLCC, or TSOP
- **Data Retention**: 10 years (min)
- **Endurance**: 1000 write/erase cycles (min)
- **UV Erasure**: Wavelength of 2537 Å, 15 Ws/cm² energy dose required for erasure

This EPROM is designed for applications requiring non-volatile memory storage and is compatible with standard EPROM programmers.

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