Datasheet4U Logo Datasheet4U.com

W83L177R Datasheet 100MHZ 2-DIMM SDRAM BUFFER FOR NOTEBOOK

Manufacturer: Winbond

📥 Download Datasheet

General Description

The W83L177R is a 10 outputs SDRAM clock buffer for 2-DIMMs models incorporate with W83L197R-16 which is the clock synthesizer especially for the 100MHz models such as Intel BX chipsets.(Refer the datasheet fo Winbond W83L197R-16) The W83L177R receives the clock from chipset by the Buffer_In pin and provides almost zerodelay (less than 4ns propagation delay) SDRAM buffer outputs for the 10 SDRAM clocks which are synchronous with the CPU clock outputs priovided by W83L197R-16.

The clock skew between any two clock outputs is less than 250ps and the output buffer impedance is about 15 ohms.

The W83L177R also provides I2C serial bus interface to program the registers to enable or disable each SDRAM clock outputs.

Overview

W83L177R 100MHZ 2-DIMM SDRAM BUFFER FOR NOTEBOOK W83177R Data Sheet Revision History Pages 1 2 3 4 5 6 7 8 9 10 n.a.

n.a.

02/Apr 1.0 Dates Version Version On Web n.a.

Key Features

  • Supports Intel Pentium II CPUs for BX chipset.
  • 10 SDRAM clocks for 2-DIMMs.
  • Clock skew less than 250ps.
  • Almost none delay Buffer-in controlling SDRAM clocks(< 4ns propagation delay).
  • I2C 2-wire serial interface.
  • Programmable registers to enable/stop each output.
  • Incorporate with W83L197R-16.
  • 28pin-SOP package (209mil) -2- Publication Release Date: Mar. 1999 Revision 1.0 W83L177R 3.0 BLOCK.

More Datasheets from Winbond

Part Number Description
W83L197R-16 2-CHIP 100MHZ CLOCK FOR BX NOTEBOOK
W83L517D LPC SUPER I/O
W83L518D Integrated Media Reader
W83L603G (W83L603G / W83L604G) SMBus GPIO Controller
W83L604G (W83L603G / W83L604G) SMBus GPIO Controller
W83L784AR WINBOND H/W MONITORING IC
W83L784G Monitoring IC
W83L784R Monitoring IC
W83L785R WINBOND H/W MONITORING IC FOR NOTEBOOK
W83L951ADG Mobile Keyboard and Embedded Controller