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HomeProductsIntegrated Circuits (ICs)MemoryM27C256B-12B1
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M27C256B-12B1 - STMicroelectronics

Manufacturer Part Number
M27C256B-12B1
Manufacturer
STMicroelectronics
Allelco Part Number
32D-M27C256B-12B1
ECAD Model
Parts Description
IC EPROM 256KBIT PARALLEL 28DIP
Package
28-DIP (0.600', 15.24mm)
Data sheet
M27C256B.pdf
RoHs Status
ROHS3 Compliant
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Specifications

M27C256B-12B1 Tech Specifications
STMicroelectronics - M27C256B-12B1 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - M27C256B-12B1

Product Attribute Attribute Value  
Manufacturer STMicroelectronics  
Write Cycle Time - Word, Page -  
Voltage - Supply 4.5V ~ 5.5V  
Technology EPROM - OTP  
Supplier Device Package 28-PDIP  
Series -  
Package / Case 28-DIP (0.600', 15.24mm)  
Package Tube  
Operating Temperature 0°C ~ 70°C (TA)  
Product Attribute Attribute Value  
Mounting Type Through Hole  
Memory Type Non-Volatile  
Memory Size 256Kbit  
Memory Organization 32K x 8  
Memory Interface Parallel  
Memory Format EPROM  
Base Product Number M27C256  
Access Time 120 ns  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN OBSOLETE
HTSUS 8542.32.0061

Parts Introduction

Manufacturer Part Number

M27C256B-12B1

Manufacturer

STMicroelectronics

Introduction

The M27C256B-12B1 is a 256Kbit EPROM memory chip.

Product Features and Performance

Non-Volatile EPROM memory

Memory Size of 256Kbit

Memory is organized as 32K x 8

Parallel memory interface

Access Time is 120 ns

Product Advantages

Retains data without power

Easy to program with parallel interface

Key Technical Parameters

EPROM - OTP Technology

Voltage supply range from 4.5V to 5.5V

Operating temperature is from 0°C to 70°C

Quality and Safety Features

Through Hole Mounting for secure attachment

Industry-standard 28-DIP package for reliability

Compatibility

Package / Case is 28-DIP (0.600", 15.24mm)

Compatible with standard EPROM programmers and sockets

Application Areas

Used in legacy systems that require parallel EPROM memory

Product Lifecycle

Obsolete status

Limited availability, recommend looking for replacements or upgrades

Several Key Reasons to Choose This Product

Robust data retention capabilities

STMicroelectronics quality and reliability

Versatile use in a variety of legacy applications

Standard package for easy replacement

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics M27C256B-12B1

Product Attribute M27C256B-12B1 M27C256B-10C6 M27C256B-10F1 M27C256B-12C1
Part Number M27C256B-12B1 M27C256B-10C6 M27C256B-10F1 M27C256B-12C1
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Memory Type Non-Volatile Non-Volatile Non-Volatile Non-Volatile
Memory Size 256Kbit 256Kbit 256Kbit 256Kbit
Write Cycle Time - Word, Page - - - -
Technology EPROM - OTP EPROM - OTP EPROM - UV EPROM - OTP
Voltage - Supply 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V
Memory Format EPROM EPROM EPROM EPROM
Operating Temperature 0°C ~ 70°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Base Product Number M27C256 M27C256 M27C256 M27C256
Memory Organization 32K x 8 32K x 8 32K x 8 32K x 8
Mounting Type Through Hole Surface Mount Through Hole Surface Mount
Access Time 120 ns 100 ns 100 ns 120 ns
Series - - - -
Package / Case 28-DIP (0.600', 15.24mm) 32-LCC (J-Lead) 28-CDIP (0.600", 15.24mm) Window 32-LCC (J-Lead)
Supplier Device Package 28-PDIP 32-PLCC (11.35x13.89) 28-CDIP Frit Seal with Window 32-PLCC (11.35x13.89)
Memory Interface Parallel Parallel Parallel Parallel
Package Tube Tube Tube Tube

M27C256B-12B1 Datasheet PDF

Download M27C256B-12B1 pdf datasheets and STMicroelectronics documentation for M27C256B-12B1 - STMicroelectronics.

HTML Datasheet
M27C256B.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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M27C256B-12B1 Image

M27C256B-12B1

STMicroelectronics
32D-M27C256B-12B1

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