Product Summary

The AT27C256R-70PU is a low-power, high performance 262,144 bit one-time programmable read only memory (OTP EPROM) organized 32K by 8 bits. The AT27C256R-70PU 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. The AT27C256R-70PU provides low active power consumption, and fast programming. Power consumption is typically only 8 mA in Active Mode and less than 10 μA in Standby.

Parametrics

AT27C256R-70PU absolute maximum ratings: (1)Temperature Under Bias:-55℃ to +125℃; (2)Storage Temperature:-65℃ to +150℃; (3)Voltage on Any Pin with Respect to Ground:-2.0V to +7.0V ; (4)Voltage on A9 with Respect to Ground:-2.0V to +14.0V; (5)VPP Supply Voltage with Respect to Ground:-2.0V to +14.0V.

Features

AT27C256R-70PU features: (1)Fast Read Access Time:45 ns; (2)Low Power CMOS Operation: 100μA max. Standby, 20 mA max. Active at 5 MHz ; (3)JEDEC Standard Packages: 28-Lead 600-mil PDIP, 32-Lead PLCC, 28-Lead TSOP and SOIC, 5V±10% Supply; (4)High Reliability CMOS Technology: 2,000V ESD Protection, 200 mA Latchup Immunity; (5)Rapid Programming Algorithm:100 μs/byte (typical); (6)CMOS and TTL Compatible Inputs and Outputs; (7)ntegrated Product Identification Code; (8)Commercial and Industrial Temperature Ranges.

Diagrams

AT27C256R-70PU pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT27C256R-70PU
AT27C256R-70PU

Atmel

EPROM 256Kb (32Kx8) OTP 5V 70ns

Data Sheet

0-1: $1.75
1-10: $1.62
10-25: $1.46
25-100: $1.25
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(USD)
Quantity
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