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M27C256B-12C6 The STMicroelectronics M27C256B-12C6 is a 256Kbit parallel OTP ROM IC. It features a 120ns access time and operates from a 4.5V to 5.5V supply voltage.
Mfr Part #:

M27C256B-12C6

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics M27C256B-12C6 is a 256Kbit parallel OTP ROM IC. It features a 120ns access time and operates from a 4.5V to 5.5V supply voltage.
✓ Total Stock: 1,985 pcs
$ Price Range: $1.28

M27C256B-12C6 Available from 2 distributors

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M27C256B-12C6 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Lead Style
Length
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Mode
Operating Temperature
Storage Temperature
Supplier Device Package
Supply Current
Tape & Reel
Technology
Voltage
Voltage Supply
Width
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M27C256B-12C6 Description

Short technical summary and product information.

The STMicroelectronics M27C256B-12C6 is a non-volatile OTP ROM integrated circuit with a memory density of 256Kbit, organized as 32K x 8. It offers a maximum access time of 120 ns and operates in asynchronous mode.

 

This component is designed for parallel data transfer and requires a supply voltage ranging from 4.5V to 5.5V, with a nominal voltage of 5V. The operating temperature range is -40°C to 85°C (TA), making it suitable for industrial applications. The device features 3-state output characteristics.

 

The M27C256B-12C6 comes in a 32-LCC (J-Lead) package, designed for surface mounting. Its dimensions include a length of 13.97 mm and a width of 11.43 mm, with a maximum seated height of 3.56 mm. The terminal pitch is 1.27 mm, and the terminal finish is matte tin.

 

This OTP ROM IC is classified as obsolete. It is manufactured using CMOS technology and has a programming voltage of 12.75V. The RoHS status is reported as RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1.

M27C256B-12C6 Quick Information

Product Type: OTP ROM IC
Canonical Name: STMicroelectronics M27C256B-12C6 256Kbit Parallel OTP ROM
Subcategory: Memory

M27C256B-12C6 Compliance

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

M27C256B-12C6 Estimated Pricing

Qty Low High
1+ $1.28 $1.28

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

M27C256B-12C6 Features

  • 256Kbit parallel OTP ROM IC.
  • 120ns maximum access time.
  • Operates from 4.5V to 5.5V supply.
  • Industrial temperature range (-40°C to 85°C).
  • 32-LCC J-Lead surface mount package.

M27C256B-12C6 Applications

  • Firmware storage for embedded systems.
  • Boot code memory for microcontrollers.
  • Configuration data storage in industrial equipment.
  • Non-volatile code storage in automotive modules.
  • Legacy EPROM replacement in existing designs.

M27C256B-12C6 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the memory size of the M27C256B-12C6?

The M27C256B-12C6 has a memory size of 256 Kbit (32,768 words x 8 bits).

What is the access time of the M27C256B-12C6?

The maximum access time is 120 ns.

What is the operating voltage range of the M27C256B-12C6?

The operating voltage range is 4.5V to 5.5V, with a nominal voltage of 5V.

What is the operating temperature range of the M27C256B-12C6?

The operating temperature range is -40°C to +85°C (industrial grade).

What package does the M27C256B-12C6 come in?

The M27C256B-12C6 is available in a 32-lead PLCC (J-Lead) package, also described as 32-LCC (J-Lead).

Is the M27C256B-12C6 lead-free?

Yes, the M27C256B-12C6 is lead-free with matte tin terminal finish.

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