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  3. ST M27C256B-12F1

ST M27C256B-12F1 Microelecronics Uv Kbit Eprom 32K CDIP-28

M27c256b-12f1 St Microelecronics 27c256 Uv 256 Kbit 32k X 8 Eprom Cdip-28

( Brand: St ), ( Manufacturer Part Number: M27C256B-12F1 ), ( Model: ST MICROELECRONICS M27C256B-12F1 27C256 ), ( Type: Ic )

Review ST Microelecronics 27c256 Uv 256 Kbit 32k Eprom

M27C256B-12F1 Microelectronics 256Kbit EPROM CDIP-28

The M27C256B-12F1 Microelectronics 27C256 UV EPROM CDIP-28 is a versatile and reliable 256Kbit (32K x 8) single inline package (SIP) electrical erasable programmable read-only memory (EEPROM) device. This component is an essential tool for various applications that require non-volatile memory storage, such as program storage for microcontrollers, configuration data storage, and firmware updates.

The M27C256B-12F1 features a 12-micron ( m) process technology, ensuring a compact size of 28-pin dual inline package (DIP) with a footprint of 18mm x 4.5mm. This makes it ideal for space-constrained designs while maintaining high performance and reliability.

The device offers a maximum operating voltage of 5.5V, making it compatible with most modern microcontroller systems. It also features a built-in UV erase window, allowing for easy UV erasure in specialized erase equipment. The erase time depends on the intensity of the erase light source and the number of erase cycles.

The M27C256B-12F1 offers a high data retention capability, ensuring that the stored data remains intact even after extended periods of power loss. The device can maintain its data integrity for up to 15 years at 85 C storage temperature and 125 years at -40 C storage temperature.

The EPROM has a typical program/erase cycle endurance of 100,000 cycles, ensuring long-term reliability for numerous write/erase cycles. The device also features a built-in self-refresh function, which extends the data retention period during power-down conditions.

In summary, the M27C256B-12F1 Microelectronics 27C256 UV EPROM CDIP-28 is a high-quality, compact, and reliable EPROM solution for various applications. Its 256Kbit capacity, UV erase capability, and compatibility with modern microcontroller systems make it a valuable addition to any project that requires non-volatile memory storage.

The M27C256B-12F1 Microelectronics 27C256 UV 256 Kbit EPROM CDIP-28 is a type of programmable read-only memory (PROM) often used in electronic devices for storing firmware or software. Here are some pros and cons to consider:

Pros:

1. High Capacity: With a storage capacity of 256 Kbits (32 Kbytes), it offers a substantial amount of memory for storing data, making it suitable for various applications.

2. UV Erasable: The UV erasable feature allows users to erase the EPROM content using ultraviolet light, unlike traditional PROMs which require special equipment for erasure.

3. Wide Operating Voltage: The device can operate from 4.5V to 18V, providing flexibility in various power supply configurations.

4. Long Data Retention: The EPROM has a long data retention period, ensuring the stored data remains intact for an extended period, even without power.

Cons:

1. Slower Write Speed: Compared to other types of memory like flash memory, EPROMs have slower write speeds, which can be a disadvantage in applications requiring frequent updates.

2. One-time Programmable: Once programmed, the data cannot be changed or erased without special equipment, limiting the device's reusability.

3. Delay After Programming: After programming, the EPROM needs to be exposed to ultraviolet light for erasure, which can take several minutes, causing a delay in the production process.

In conclusion, the M27C256B-12F1 Microelectronics 27C256 UV 256 Kbit EPROM CDIP-28 is a suitable choice for applications requiring a large amount of non-volatile memory that does not need frequent updates. However, for applications requiring faster write speeds and the ability to reprogram, other types of memory, such as flash memory, may be more suitable. It's essential to weigh the pros and cons and consider the specific requirements of your application before making a purchase decision.

Details:

Removed from a working unit. Photos are part of the. If it is considered Measurements are on the photo. Images may vary due to the light.

Original Genuine Parts Only 1 PC Please see all pictures for complete condition and of the item.

part #: m27c256b12f1 price

  • $11.65

specifications tubesocketvintagego:

  • brand: St
  • mpn: M27c256b-12f1
  • model: St Microelecronics M27c256b-12f1 27c256
  • type: Ic

seller tubesocketvintagego:

  • # reviews: 337
  • city: Cedar Hill, Texas
  • rating: 98.9%

offer tubesocketvintagego:

  • quantity: 1
  • sold: 0
  • Started: AuguSt 9, 2025
  • options: Ship-to-home
  • availability: In Stock
  • beSt offers: True

general tubesocketvintagego:

  • condition: Used
  • Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets

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