AT25040B-MAHL-E Part Information

Details for AT25040B-MAHL-E by Microchip Technology

AT25040B

Part Description

The Microchip AT25040B is a 4 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 512 x 8-bit and is optimized for use in consumer electronics, industrial, medical, and automotive applications where reliable and dependable nonvolatile memory storage is essential. Software write protection allows the user to protect ¼, ½, or the entire memory array. A hardware write protect pin is also provided, which additionally protects against inadvertent writes to the status register. The EEPROM is available in a variety of space-saving packaging options.

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Part Features

  • 512 x 8-bit (1 Kbit)
  • Serial Peripheral Interface (SPI) Compatible
  • Supports SPI modes 0 and 3
  • Up to 20 MHz clock frequency
  • Self-Timed Erase and Write Cycles (5 ms max.)
  • Low Power Consumption
  • Read current: 5mA (Max) at 5 MHz
  • Write current: 5 mA (Max) at 5 MHz
  • Standby current: 3.5 uA (Max) at 5 V
  • Block Write Protection: Protect 1/4, 1/2 or Entire Array
  • More than 1 million erase/write cycles
  • Data retention 100 years
  • Temperature Ranges Available
  • Automotive Grade 1 : -40°C to 125°C
  • Automotive Grade 2 :-40°C to 105°C
  • Automotive Grade 3 / Industrial: -40°C to 85°C
  • Automotive AECQ-100 Qualified 1
  • Factory Programming Available
  • Available in standard packages including 8-lead SOIC, and advanced packages including 8-lead TSSOP, 8-lead 2x3 DFN, and 8-ball VFBGA 1 Consult Automotive datasheet for device specification and ordering part number

Part Specifications

Bus Modes SPI
Density (Organization) 4K bits
Endurance 1,000,000
Max. Clock Freq. 20 MHz
Max. Stand By Current (µA) 4
Operating Voltage Min. (V) 1.8
Oper Voltage Max (V) 5.5
Page Size (bytes) 8
Write Speed (ms) 5
Write Protect Scheme Quarter, Half, Whole Array
Automotive Qualified True
Temperature Range -40C to +85C

Alternative Part Descriptions

  • MCCAT25040B-MAHL-E | Avnet America
  • MCCAT25040B-MAHL-E | Avnet Europe

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