27C256R Datasheet 256k 32k X 8 Otp CMOS Eprom

Manufacturer: Atmel (now Microchip Technology)

Overview: AT27C256R.

Datasheet Details

Part number	27C256R
Manufacturer	Atmel (now Microchip Technology)
File Size	251.19 KB
Description	256K 32K x 8 OTP CMOS EPROM
Datasheet	27C256R_ATMELCorporation.pdf

The AT27C256R is a low-power, high performance 262,144 bit one-time programmable read only memory (OTP EPROM) organized 32K by 8 bits.

It requires only one 5V power supply in normal read mode operation.

Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high performance microprocessor systems.

Fast Read Access Time - 45 ns Low Power CMOS Operation 100 µA max. Standby 20 mA max. Active at 5 MHz JEDEC Standard Packages 28-Lead 600-mil PDIP 32-Lead PLCC 28-Lead TSOP and SOIC 5V ± 10% Supply High Reliability CMOS Technology 2,000V ESD Protection 200 mA Latchup Immunity Rapid™ Programming Algorithm - 100 µs/byte (typical) CMOS and TTL Compatible Inputs and Outputs Integrated Product Identification C.

Brand Logo	Part Number	Description	Manufacturer
General Semiconductor Inc	27C256	256K CMOS UV Erasable PROM	General Semiconductor Inc
	27C256	256K (32K x 8) CMOS EPROM	Microchip Technology
	27C256	262 /144-Bit (32K x 8) High Performance CMOS EPROM	National

Part Number	Description
27C010	1 Megabit 128K x 8 OTP CMOS EPROM
27C020	2-Megabit 256K x 8 OTP EPROM
27C040	4-Megabit 512K x 8 OTP EPROM
27C080	8-Megabit 1M x 8 UV Erasable CMOS EPROM
27C1024	1-Megabit 64K x 16 OTP EPROM
27C4096	4-Megabit 256K x 16 OTP EPROM
27C800	8-Megabit 512K x 16 or 1024K x 8 UV Erasable EPROM