ON Semiconductor
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NM27C256QE120
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NM27C256QE120

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Non-volatile Memory
  • Characteristics: High-density, Electrically Erasable Programmable Read-Only Memory (EEPROM)
  • Package: 28-pin DIP (Dual In-line Package)
  • Essence: Stores data even when power is turned off
  • Packaging/Quantity: Tray packaging, 100 pieces per tray

Specifications

  • Memory Size: 256 kilobits (32 kilobytes)
  • Organization: 32K x 8 bits
  • Access Time: 120 nanoseconds
  • Operating Voltage: 5 volts
  • Data Retention: More than 10 years
  • Endurance: 1,000,000 write cycles

Detailed Pin Configuration

The NM27C256QE120 has a total of 28 pins. The pin configuration is as follows:

  1. A14
  2. A12
  3. A7
  4. A6
  5. A5
  6. A4
  7. A3
  8. A2
  9. A1
  10. A0
  11. VPP
  12. A8
  13. A9
  14. A11
  15. A10
  16. CE
  17. OE
  18. WE
  19. I/O0
  20. I/O1
  21. I/O2
  22. I/O3
  23. I/O4
  24. I/O5
  25. I/O6
  26. I/O7
  27. VCC
  28. GND

Functional Features

  • High-density memory storage
  • Electrically erasable and programmable
  • Non-volatile data retention
  • Fast access time
  • Low power consumption

Advantages and Disadvantages

Advantages: - High memory capacity - Easy to program and erase - Reliable data retention - Fast access time

Disadvantages: - Limited endurance (1,000,000 write cycles) - Requires an external programming voltage (VPP)

Working Principles

The NM27C256QE120 is based on EEPROM technology. It uses a grid of floating-gate transistors to store data. The data can be electrically erased and reprogrammed using specific voltage levels applied to the control pins. When power is turned off, the stored data remains intact.

Detailed Application Field Plans

The NM27C256QE120 is commonly used in various applications that require non-volatile memory storage. Some of the typical application fields include:

  1. Embedded systems
  2. Automotive electronics
  3. Industrial control systems
  4. Consumer electronics
  5. Medical devices

Detailed and Complete Alternative Models

  1. AT28C256-15PU - Atmel Corporation
  2. M27C256B-12F1 - STMicroelectronics
  3. CAT28C256H13I-12 - ON Semiconductor
  4. W27C256-45Z - Winbond Electronics

These alternative models offer similar functionality and specifications to the NM27C256QE120 and can be considered as alternatives for different project requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de NM27C256QE120 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of NM27C256QE120 in technical solutions:

  1. Q: What is NM27C256QE120? A: NM27C256QE120 is a 256 kilobit (32K x 8) high-performance CMOS EPROM (Electrically Programmable Read-Only Memory) with a 120ns access time.

  2. Q: What are the typical applications of NM27C256QE120? A: NM27C256QE120 is commonly used in embedded systems, microcontrollers, automotive electronics, industrial control systems, and other applications that require non-volatile memory storage.

  3. Q: How is NM27C256QE120 programmed? A: NM27C256QE120 is programmed using a device programmer that applies specific voltage levels to the programming pins to store data in the memory cells.

  4. Q: Can NM27C256QE120 be reprogrammed? A: No, NM27C256QE120 is a one-time programmable EPROM and cannot be electrically erased or reprogrammed after it has been programmed.

  5. Q: What is the operating voltage range for NM27C256QE120? A: NM27C256QE120 operates within a voltage range of 4.5V to 5.5V.

  6. Q: What is the maximum operating frequency of NM27C256QE120? A: NM27C256QE120 can operate at frequencies up to 20MHz.

  7. Q: Does NM27C256QE120 require an external power supply? A: Yes, NM27C256QE120 requires an external power supply within the specified voltage range for proper operation.

  8. Q: What is the package type of NM27C256QE120? A: NM27C256QE120 is available in a 28-pin DIP (Dual In-line Package) or a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

  9. Q: Can NM27C256QE120 withstand high temperatures? A: Yes, NM27C256QE120 has a wide operating temperature range of -40°C to +85°C, making it suitable for various environments.

  10. Q: Are there any special precautions to consider when handling NM27C256QE120? A: Yes, NM27C256QE120 is sensitive to static electricity, so proper ESD (Electrostatic Discharge) precautions should be taken during handling and installation to prevent damage to the device.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of NM27C256QE120.