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M27W401-80K6

4 Megabit Erasable Programmable Read-Only Memory

Quantity Unit Price(USD) Ext. Price
1 $7.177 $7.18
192 $2.865 $550.08
512 $2.769 $1,417.73
992 $2.721 $2,699.23

Inventory:9,460

*The price is for reference only.
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Overview of M27W401-80K6

The M27W401-80K6 is a 4-Mbit (512K x 8) UV EPROM and OTP EPROM memory IC with a 80ns access time. It is designed to provide non-volatile storage for program code or data in various electronic systems. The IC supports both EPROM and OTP EPROM functionalities, offering flexibility in programming and usage.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • A17-1: Address input 17 for memory addressing
  • A16-2: Address input 16 for memory addressing
  • A15-3: Address input 15 for memory addressing
  • A14-4: Address input 14 for memory addressing
  • A13-5: Address input 13 for memory addressing
  • A12-6: Address input 12 for memory addressing
  • A7-7: Address input 7 for memory addressing
  • A6-8: Address input 6 for memory addressing
  • A5-9: Address input 5 for memory addressing
  • A4-10: Address input 4 for memory addressing
  • A3-11: Address input 3 for memory addressing
  • A2-12: Address input 2 for memory addressing
  • A1-13: Address input 1 for memory addressing
  • A0-14: Address input 0 for memory addressing
  • Q7-15: Data outputs
  • Q6-16: Data outputs
  • Q5-17: Data outputs
  • Q4-18: Data outputs
  • Q3-19: Data outputs
  • Q2-20: Data outputs
  • Q1-21: Data outputs
  • Q0-22: Data outputs
  • G-23: Ground connection
  • A18-24: Address input 18 for memory addressing
  • PGM-25: Programming voltage for OTP mode
  • A19-26: Address input 19 for memory addressing
  • E-27: Chip enable / Output enable for OTP mode
  • VPP-28: Programming voltage supply for UV EPROM mode
  • CE-29: Chip enable / Output enable for UV EPROM mode
  • OE-30: Output enable for UV EPROM mode
  • WE-31: Write enable for UV EPROM mode
  • NC-32: No connection
  • NC-33: No connection
  • VCC-34: Positive power supply
  • NC-35: No connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the M27W401-80K6 IC for a visual representation.

Key Features

  • 4-Mbit EPROM: The M27W401-80K6 provides a large 4-Mbit memory capacity for storing program code and data.
  • Multiple Programming Modes: Supports both UV EPROM and OTP EPROM modes for flexible programming and usage options.
  • 80ns Access Time: Offers fast access times for efficient data retrieval and processing in electronic systems.
  • Wide Operating Voltage Range: Operates from a single +4.5V to +5.5V supply, making it compatible with a variety of systems.
  • Industrial Temperature Range: Designed to operate over a wide industrial temperature range, suitable for harsh environmental conditions.

Note: For detailed technical specifications, please refer to the M27W401-80K6 datasheet.

Application

  • Embedded Systems: Ideal for non-volatile program and data storage in embedded systems and microcontrollers.
  • Industrial Control: Suitable for use in industrial control systems, providing reliable memory storage for critical operations.
  • Telecommunication Equipment: Used in telecommunication devices and equipment requiring non-volatile memory storage.

Functionality

The M27W401-80K6 is a versatile EPROM memory IC that offers both UV EPROM and OTP EPROM modes, providing flexible options for non-volatile memory storage in various electronic applications.

Usage Guide

  • Power Supply: Connect VCC (Pin 34) to the supply voltage (+4.5V to +5.5V) and GND (Pin 23) to the ground.
  • Address and Data Connections: Connect the address and data input/output pins according to the system's addressing and data bus requirements.
  • Programming Mode Selection: Control the PGM (Pin 25) and E (Pin 27) pins for selecting the programming mode (UV EPROM or OTP EPROM).

Frequently Asked Questions

Q: Can the M27W401-80K6 be reprogrammed after initial programming?
A: The UV EPROM mode allows for multiple erasure and programming cycles, while the OTP mode is typically one-time programmable and irreversible.

Q: What is the typical power consumption of the M27W401-80K6 in standby mode?
A: The typical standby current is specified in the datasheet and can be used to estimate power consumption in standby mode.

Equivalent

For similar functionalities, consider these alternatives to the M27W401-80K6:

  • AT27C040: This is a 4-Mbit EPROM from Atmel, offering similar memory capacity and functionality to the M27W401-80K6.
  • 27C400: A 4-Mbit EPROM IC from various manufacturers, providing comparable memory storage and programming features.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category EPROM RoHS Details
Mounting Style SMD/SMT Package / Case PLCC-32
Type OTP, UV Memory Size 4 MB
Organization 512 k x 8 Interface Type Parallel
Operating Supply Current 50 mA Programming Voltage 12.75 V
Supply Voltage - Max 3.6 V Supply Voltage - Min 2.7 V
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Series M27W401 Access Time 80 ns
Brand STMicroelectronics Moisture Sensitive Yes
Output Enable Access Time 50 ns Product Type EPROM
Factory Pack Quantity 32 Subcategory Memory & Data Storage

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M27W401-80K6

4 Megabit Erasable Programmable Read-Only Memory

Inventory:

9,460