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M27C256B-20B1 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
M27C256B-20B1ST208Yes

M27C256B-20B1** is a 256 Kbit (32K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by **STMicroelectronics**.

The M27C256B-20B1 is a 256 Kbit (32K x 8) UV erasable and electrically programmable read-only memory (EPROM) manufactured by STMicroelectronics.

Key Specifications:

  • Memory Size: 256 Kbit (32K x 8)
  • Access Time: 200 ns
  • Supply Voltage: 5V ±10%
  • Operating Temperature Range: 0°C to +70°C
  • Package: 28-lead PDIP (Plastic Dual In-line Package)
  • Technology: CMOS
  • Programming Voltage (VPP): 12.5V
  • Standby Current: 100 µA (max)
  • Active Current: 30 mA (max)

Features:

  • UV Erasable: Can be erased by exposure to UV light
  • Electrically Programmable: Byte-wise programming
  • TTL-Compatible Inputs/Outputs
  • Three-State Outputs
  • Low Power Consumption in standby mode
  • High Reliability: Endurance of 100 programming cycles

Applications:

  • Firmware storage in embedded systems
  • Legacy computing and industrial control systems
  • Microcontroller-based applications

The M27C256B-20B1 is designed for applications requiring non-volatile memory with reprogramming capability via UV erasure.

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