AT27C256R-70PU More Semiconductors - ICs by Microchip Technology

256Kb (32-Kbit x 8) 5V OTP EPROM

Status: Active
Series: AT27C256R
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The Microchip AT27C256R is a low-power, high-performance 256-Kbit One Time Programmable EPROM organized as 32-Kbit x 8. Requiring a single 5V power supply, in normal read mode operation typical power consumption is only 8 mA in active mode and less than 10 μA in standby mode. Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.

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Features

256-Kbit (32-Kbit x 8)
Low-power CMOS operation
Standard power supply range, 5V +/-10%
100 µA max standby
20mA max active at 5 MHz
Parallel Interface
45 ns access time
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 code
Industrial Temperature Range: -40°C to 85°C
Available in Green (Pb/Halide-free) Packaging Only
32-lead, Plastic J-leaded Chip Carrier (PLCC)

Specifications

Density (Organization) 256Kb
Operating Voltage Min. (V) 4.5
Oper Voltage Max (V) 5.5
Read Access Speed (Par Flash) 45/70ns
Page Size (bytes) 1
Write Protected False
Data Retention (Years) 20
Battery Backup False
Pins | Packaging 28 | PDIP
Temp Range -40C to +85C
Packing Media Tube (14)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 4.0667
Shipping Weight (kg) 3.733333
Lead Count 28
Package Type PDIP
Package Width or Size .600in
Soldering Composition Matte Tin

Alternative Descriptions

IC, EPROM 256K (32K x 8) 4.5-5.5V | element14
Ic, Eprom 256K, 4.5-5.5V, 27C256 | Newark Electronics
IC, EPROM 256K, 4.5-5.5V, 27C256 | Farnell
AT27C256R Series 5.5 V 256 Kb (32 K x 8) 70 ns Through Hole EPROM OTP - PDIP-28 | Future Electronics
EPROM OTP 256K-bit 32Kx8 70ns 28-Pin | RS
EPROM, 256K 70NS OTP 28DIP | Microchip Technology Inc. AT27C256R-70PU | RS Americas
IC: EPROM memory | Transfer Multisort Elektronik
OTP-ROM 5V 32kx8 70ns DIP28 | Schukat Electronic
Microchip OTP EPROM Parallel 256KB 70ns PDIP 256KB 70ns PDIP | Distrelec
70NS, PDIP, IND TEMP, GREEN | Microchip Technology
EPROM OTP 256K-Bit 32K x 8 70ns 28-Pin PDIP | EBV Elektronik


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AT27C256R-70PU?

Additional datasheets, footprints and schematics for AT27C256R-70PU are listed on our Part Details page. You can also find images and similar parts to AT27C256R-70PU on this page.

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What category does AT27C256R-70PU fall under?

The AT27C256R-70PU is listed under Semiconductors - ICs > More Semiconductors - ICs.

Can I view similar or alternative parts?

You can view similar parts to AT27C256R-70PU when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.

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Is the AT27C256R-70PU RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for AT27C256R-70PU have stock available?

Authorised distributors including element14, Newark Electronics, Farnell, Future Electronics and RS have stock available or on a lead time for AT27C256R-70PU.

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