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Home > Embedded ICs > Embedded - Memory > AT27C256R-45PU
Microchip

AT27C256R-45PU

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AT27C256R-45PU Overview

The AT27C256R-45PU is a 256K (32K x 8) one-time programmable (OTP) read-only memory (ROM) integrated circuit (IC) manufactured by Microchip Technology. It is designed to store permanent data that can be read, but not modified or erased after programming.

Features

  • 45ns Fast read access time
  • Low-power CMOS operation - 100µA max standby
  • 5V ±10% Supply
  • High-reliability CMOS technology - 2000V ESD protection
  • Rapid programming algorithm - 100µs/byte (typical)
  • CMOS and TTL compatible inputs and outputs
  • Integrated product identification code
  • Industrial and automotive temperature ranges

Specifications

  • Mounting Style Through Hole

  • Organization 32 K x 8

  • Output Enable Access Time 20 ns

  • Minimum Operating Temperature - 40 C

  • Supply Voltage - Min 4.5 V

  • Type OTP

  • Access Time 45 ns

  • Memory Size 256 Kbit

  • Package / Case PDIP-28

  • Operating Supply Voltage 5 V

  • Maximum Operating Temperature + 85 C

  • Programming Voltage 13 V

  • Supply Voltage - Max 5.5 V

  • Interface Type Parallel

  • Operating Current 100 uA

  • Factory Pack Quantity 14

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