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BU9877FV - Serial interface IC for DIMMs supporting plug & play

Description

Pin No.

I/O I I

Slave address setting (pin) Input / output reference voltage of 0V Slave and word address, serial data input / output Serial clock input Write protect input Connect the power supply to this.

Features

  • 1) 2-k bit EEPROM with configuration of 256 words × 8 bits. 2) Compliance with SPD data format. 3) Dual-line serial (I2C bus) interface. 4) Protective functions enabled by a one-time ROM and write protect pin. Soft ware protection. as a one-time ROM: 00 to 7Fh. Hard ware protection (WP pin): 80 to FFh. 5) Compact SSOP-B 8-pin package.
  • Absolute maximum ratings (Ta = 25°C) Parameter Applied voltage Power dissipation Storage temperature Operating temperature Input voltage Symbo.

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Datasheet Details

Part number BU9877FV
Manufacturer ROHM
File Size 95.01 KB
Description Serial interface IC for DIMMs supporting plug & play
Datasheet download datasheet BU9877FV Datasheet

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Full PDF Text Transcription

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Memory ICs Serial interface IC for DIMMs supporting plug & play BU9877FV The BU9877FV is a 2-k bit EEPROM with a write protect function, developed for DIMMs (Dual In-line Memory Modules) containing a synchronous DRAM. This IC stores IDs in memory in order to enable Plug & Play functions. Applications • 168-pin and 144-pin DRAM modules containing synchronous DRAM Features • 1) 2-k bit EEPROM with configuration of 256 words × 8 bits. 2) Compliance with SPD data format. 3) Dual-line serial (I2C bus) interface. 4) Protective functions enabled by a one-time ROM and write protect pin. Soft ware protection. as a one-time ROM: 00 to 7Fh. Hard ware protection (WP pin): 80 to FFh. 5) Compact SSOP-B 8-pin package.
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