AT27C256R-70PU The Microchip Technology AT27C256R-70PU is a 256Kbit one-time programmable EPROM memory IC with a 70ns access time. It features through-hole mounting in a 28-PDIP package.
Mfr Part #:

AT27C256R-70PU

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology AT27C256R-70PU is a 256Kbit one-time programmable EPROM memory IC with a 70ns access time. It features through-hole mounting in a 28-PDIP package.
✓ Total Stock: 6,554 pcs
$ Price Range: $1.28

AT27C256R-70PU Available from 3 distributors

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✓ Non-Authorised

AT27C256R-70PU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
ESD Protection
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Technology
Voltage

AT27C256R-70PU Description

Short technical summary and product information.

The Microchip Technology AT27C256R-70PU is a high-performance, low-power 262,144-bit (32K x 8) one-time programmable (OTP) EPROM. It operates from a 4.5V to 5.5V supply and offers a fast read access time of 70ns, eliminating the need for wait states in many microprocessor systems.

 

This EPROM utilizes Atmel's scaled CMOS technology for low active power consumption, typically 8mA, and minimal standby power, less than 10µA. It is designed for reliability with 2,000V ESD protection and 200mA latchup immunity. The device supports a rapid programming algorithm, typically 100µs/byte.

 

Available in a JEDEC standard 28-lead PDIP package, the AT27C256R-70PU is suitable for through-hole mounting. Its operating temperature range is -40°C to 85°C (TC). The integrated product identification code aids in programming equipment setup.

 

This memory IC is ideal for storing firmware and data reliably in embedded systems where non-volatile storage is required. Its parallel interface and standard organization make it compatible with a wide range of microcontrollers and processors.

AT27C256R-70PU Quick Information

Product Type: EPROM Memory IC
Series: AT27C256R
Canonical Name: AT27C256R-70PU 256Kbit EPROM - OTP Memory IC
Subcategory: OTP EPROM

AT27C256R-70PU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Green (Pb/halide-free) packaging option

AT27C256R-70PU Estimated Pricing

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1+ $1.28 $1.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

AT27C256R-70PU Features

  • 256Kbit one-time programmable EPROM memory.
  • Fast 70ns read access time.
  • Low power CMOS operation.
  • Operates from a 4.5V to 5.5V supply.
  • 28-PDIP package for through-hole mounting.

AT27C256R-70PU Applications

  • Ideal for firmware storage.
  • Suitable for embedded systems.
  • Used in microprocessor applications.
  • Reliable non-volatile data storage.

AT27C256R-70PU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the memory size of the AT27C256R-70PU?

The AT27C256R-70PU has a memory size of 256 Kbit.

What is the access time for the AT27C256R-70PU?

The access time for the AT27C256R-70PU is 70 ns.

What voltage is required for the AT27C256R-70PU?

The AT27C256R-70PU requires a voltage supply between 4.5V and 5.5V.

What is the operating temperature range of the AT27C256R-70PU?

The operating temperature range for the AT27C256R-70PU is -40°C to 85°C (TC).

What type of package is the AT27C256R-70PU in?

The AT27C256R-70PU is in a 28-DIP (0.600", 15.24mm) package.

How is the AT27C256R-70PU mounted?

The AT27C256R-70PU is mounted using the through-hole method.

What is the programming time for the AT27C256R-70PU?

The programming time for the AT27C256R-70PU is typically 100µs/byte.

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