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OTP EPROM

Longevity, dependability and steady are all words which aptly apply to the Microchip’s supply of 5V, 3V and battery-voltage 2.7V One-Time Programmable (OTP) EPROMs, widely used for embedded program code storage in a vast array of applications. Microchip will continue to support these legacy components for years to come, enabling you to use them in new and existing designs, removing the risk of forced redesign.

Why Design with Microchip’s OTP EPROMs?

microchip
  • Density range and speed: 256 Kbits to 8 Mbits, speeds as fast as 45 ns
  • Lower power: Microchip’s innovative design techniques provide fast speeds that rival 5V devices while retaining the low power consumption of a 3V power supply
  • Two-line control: All devices feature two-line control (CE, OE) to give designers the flexibility to prevent bus contention
  • Additional features: The AT27Cxxx and AT27LVxxx series both have additional features to ensure high quality and efficient product use, including Rapid Programming Algorithm and Integrated Product Identification Code

One-Time EPROM Devices

DeviceDescription
AT27BV0101 Mb (128K x 8) Unregulated Battery-Voltage OTP EPROM
AT27BV10241 Mb (64K x 16) Unregulated Battery-Voltage High-Speed OTP EPROM
AT27BV256256K (32K x 8) Unregulated Battery-Voltage High-Speed OTP EPROM
AT27C0101 Mb (128K x 8) OTP EPROM
AT27C0202 MB (256K x 8) OTP EPROM
AT27C0404 Mb (512K x 8) OTP EPROM
AT27C0808 Mb (1Mb x 8) OTP EPROM
AT27C10241 Mb (64K x 16) OTP EPROM
AT27C20482 Mb (128K x 16) OTP EPROM
AT27C256R256K (32K x 8) OTP EPROM
AT27C40964 Mb (256K x 16) OTP EPROM
AT27C512R512K (64K x 8) OTP EPROM
AT27LV010A1 Mb (128K x 8) Low-Voltage OTP EPROM
AT27LV020A2 Mb (256K x 8) Low-Voltage OTP EPROM
AT27LV040A4 Mb (512K x 8) Low-Voltage OTP EPROM
AT27LV256A256K (32K x 8) Low-Voltage OTP EPROM
AT27LV512A512K (64K x 8) Low-Voltage OTP EPROM