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AT27C512R-12JI The Atmel AT27C512R-12JI is a 512Kbit one-time programmable read-only memory (OTP EPROM) organized as 64K by 8 bits. It offers fast read access times and low-power CMOS operation.
Mfr Part #:

AT27C512R-12JI

Available from 3 distributors
Mfr Name: Atmel
Atmel
The Atmel AT27C512R-12JI is a 512Kbit one-time programmable read-only memory (OTP EPROM) organized as 64K by 8 bits. It offers fast read access times and low-power CMOS operation.
✓ Total Stock: 905 pcs
$ Price Range: $1.28

AT27C512R-12JI Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
565 pcs
On Request
565 pcs On Request 1 On Request On Request 00+ On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
320 pcs
On Request
320 pcs On Request 1 On Request On Request On Request On Request 2026-04-21 08:15:10
Hybrid Electronics ✓
Non-Authorised Inventory information
20 pcs
On Request
20 pcs On Request 1 On Request On Request 0318 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

AT27C512R-12JI Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacity
ESD Protection
Lead Spacing
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Mounting Type
Operating Temperature
SVHC Present
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Tape & Reel
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AT27C512R-12JI Description

Short technical summary and product information.

The AT27C512R-12JI from Atmel is a high-performance, low-power 512Kbit OTP EPROM. It is organized as 64K words by 8 bits, providing a total storage capacity of 524,288 bits. This device features a fast read access time of 45 ns, enabling operation with high-performance microprocessors without the need for wait states.

 

Designed with Atmel's scaled CMOS technology, the AT27C512R-12JI offers efficient power consumption, with typically only 8 mA in active mode and less than 10 μA in standby. It operates from a single 5V ±10% power supply. The EPROM includes high-reliability features such as 2,000V ESD protection and 200 mA latchup immunity. It also supports a Rapid™ Programming Algorithm for efficient programming, typically at 100 μs/byte.

 

This component is available in JEDEC standard packages, including the 32-lead PLCC. It features two-line control (CE, OE) for flexibility in preventing bus contention. The AT27C512R-12JI is suitable for applications requiring reliable firmware storage and access, operating across commercial, industrial, and automotive temperature ranges.

AT27C512R-12JI Quick Information

Product Type: EPROM
Series: AT27C512R
Canonical Name: AT27C512R-12JI 512Kbit Parallel EPROM
Subcategory: OTP EPROM

AT27C512R-12JI Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

AT27C512R-12JI Estimated Pricing

Qty Low High
1+ $1.28 $1.28

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

AT27C512R-12JI Features

  • Fast 45 ns read access time.
  • 512K (64K x 8) memory capacity.
  • Operates from a 5V supply voltage.
  • Low 100 μA maximum standby current.
  • Robust 2,000V ESD protection.

AT27C512R-12JI Applications

  • Suitable for embedded system firmware storage.
  • Used in industrial control applications.
  • Ideal for one-time programmable memory needs.
  • Applicable in automotive electronic systems.
  • Supports data storage in consumer electronics.

AT27C512R-12JI FAQs

5 frequently asked questions generated from this part’s specifications.
What is the access time for the AT27C512R-12JI?

The AT27C512R-12JI has a fast read access time of 45 ns.

What is the operating voltage range for this EPROM?

The AT27C512R-12JI operates from a 5V ±10% supply.

What package type is the AT27C512R-12JI available in?

This EPROM is available in a 32-lead PLCC package.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the programming time per byte?

The programming time is typically 100 μs/byte using the Rapid™ Programming Algorithm.

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