Datasheet4U Logo Datasheet4U.com

FM3570 - CPU CONFIGURATION CONTROLLER

Description

The Fairchild FM3570 replaces the CPU motherboard’s configuration switches with an electronic implementation consisting of a 4/5-bit multiplexed, 1-bit latched port, standard 2-wire bus interface, and non-volatile latches.

Features

  • I Extended Operating Voltage Range 3.0V-5.5V I IIC Compatible Slave Interface. I ESD performance: Human body model > 2000V I Choice of 2.5V Outputs or Open-Drain Outputs Block Diagram Non_Mux_Out I[4:0] Y[4:0] Mux1 SOPRA Mux2 SOPRB MXSB, MXSA IIC Read Logic Mux3 Control Logic MUXSEL OVRD SDA SCL IIC Interface Shift Register Slave Address Register ASEL Comparator Start/Stop Logic © 2001 Fairchild Semiconductor Corporation FM3570 Rev. A 1 www. fairchildsemi. com FM3570 CPU.

📥 Download Datasheet

📁 Similar Datasheet

  • FM350 - SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER (Rectron)
  • FM350 - Schottky Barrier Diodes (Formosa MS)
  • FM350-A - Schottky Barrier Diodes (Formosa MS)
  • FM350-AS - 3A SMD SCHOTTKY BARRIER RECTIFIERS (Frontier Electronics)
  • FM350-AS - Chip Schottky Barrier Rectifier (Formosa MS)
  • FM350-B - (FM3xxx-B) Chip Schottky Barrier Diodes (Formosa MS)
  • FM350-MT - 3.0A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS (WILLAS)
  • FM350A - SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER (Rectron)
  • FM350B - SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER (Rectron Semiconductor)
  • FM3585 - SPDT Switch (ChipSourceTek)
Other Datasheets by Fairchild Semiconductor
  • FM3540 - 4/5-Bit Multiplexed 1-Bit Latched Port
  • FM3540CM14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3540CMT14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3540SM14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3540SMT14 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3560M20 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3560MT20 - 4/5 Bit Multiplexed/ 1 Bit Latched Port
  • FM3580 - 5-Bit VID Controller

Full PDF Text Transcription

Click to expand full text
FM3570 CPU CONFIGURATION CONTROLLER Register/Multiplexer for Microprocessor VID Preliminary March 2001 FM3570 CPU CONFIGURATION CONTROLLER Register/Multiplexer for Microprocessor VID General Description The Fairchild FM3570 replaces the CPU motherboard’s configuration switches with an electronic implementation consisting of a 4/5-bit multiplexed, 1-bit latched port, standard 2-wire bus interface, and non-volatile latches. The FM3570 multiplexes the I-port input signals with two internal non-volatile registers that can be loaded through the serial port. The multiplexer is selected via the serial port and defaults to the I-port upon power-up. Pull-up resistors are provided on the input port to accommodate connections to open-drain outputs and to eliminate the need for external resistors.
Published: |