AT29C256-90TC The AT29C256-90TC is a 256Kbit (32K x 8) parallel Flash memory IC from Microchip Technology. It features 70 ns access time, operates from a single 5V supply, and comes in a 28-TSOP surface mount package.
Mfr Part #:

AT29C256-90TC

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The AT29C256-90TC is a 256Kbit (32K x 8) parallel Flash memory IC from Microchip Technology. It features 70 ns access time, operates from a single 5V supply, and comes in a 28-TSOP surface mount package.
Total Stock: 60,267 pcs
$ Price Range: $1.28

AT29C256-90TC Available from 1 distributor

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AT29C256-90TC Specifications Quick View

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

AT29C256-90TC Description

Short technical summary and product information.

The AT29C256-90TC is a 256Kbit (32K x 8) parallel Flash memory device from Microchip Technology. It is organized as 32,768 words of 8 bits each, providing non-volatile storage. The memory operates from a single 5V supply with a tolerance of ±10% (4.5V to 5.5V).

 

Electrical characteristics include a maximum access time of 70 ns (90 ns nominal). Typical active current is 50 mA, while standby current is 300 µA (CMOS). The device supports chip erase in 10 ms and page program operations (64-byte page) in 10 ms. Endurance is rated at 10,000 program/erase cycles.

 

The AT29C256-90TC is specified for operating temperature range of 0°C to 70°C (case temperature). It is available in a 28-TSOP (Thin Small Outline Package) with 0.465" body width, designed for surface mount assembly.

AT29C256-90TC Quick Information

Product Type: Flash Memory
Canonical Name: AT29C256-90TC 256Kbit Parallel Flash Memory
Subcategory: Parallel Interface Non-Volatile Memory

AT29C256-90TC Compliance

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

AT29C256-90TC Estimated Pricing

Qty Low High
1+ $1.28 $1.28

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

AT29C256-90TC Features

  • 256Kbit (32K x 8) parallel Flash memory.
  • 70 ns maximum access time.
  • Single 5V ±10% supply operation.
  • 10,000 cycle endurance rating.
  • Surface mount 28-TSOP package.

AT29C256-90TC Applications

  • Firmware storage for embedded systems.
  • Code shadowing in microcontroller designs.
  • Data logging with non-volatile retention.
  • Configuration storage for networking equipment.

AT29C256-90TC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the AT29C256-90TC?

The device operates from a single 5V supply with ±10% tolerance, giving a range of 4.5V to 5.5V.

What package is the AT29C256-90TC available in?

It comes in a 28-TSOP (0.465", 11.80mm Width) surface mount package.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C (case temperature).

What is the memory size and organization?

It is 256Kbit organized as 32K words by 8 bits (32K x 8).

What is the access time?

The maximum access time is 70 ns, with a nominal value of 90 ns.

What is the endurance rating?

Endurance is greater than 10,000 program/erase cycles.

What is the supply voltage requirement?

The device requires a single 5V supply with ±10% tolerance (4.5V to 5.5V).

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