W83194BR-911中文資料華邦電子數(shù)據(jù)手冊(cè)PDF規(guī)格書

GENERAL DESCRIPTION

The W83194BR-911 is a Clock Synthesizer for VIA PT880/PM880 chipset. W83194BR-911 provides all clocks required for high-speed microprocessor and provides step-less frequency programming and 32 different frequencies of CPU, PCI, and AGP clocks setting, support two 25MHz clock outputs, all clocks are externally selectable with smooth transitions.

PRODUCT FEATURES

? 2 0.7V current-mode Differential pairs clock outputs

? 2 2.5V 25MHz clock outputs

? 3 AGP clock outputs

? 10 PCI synchronous clocks

? 1 24_48Mhz clock output for super I/O.

? 1 48 MHz clock output for USB.

? 3 14.318MHz REF clock outputs.

? AGP/PCI clock out supports synchronous and asynchronous mode

? Smooth frequency switch with selections from 100 to 400MHz

? Step-less frequency programming

? I2C 2-Wire serial interface and support byte read/write and block read/write.

? -0.5 and +/- 0.25 center type spread spectrum

? Programmable S.S.T. scale to reduce EMI

? Programmable registers to enable/stop each output and select modes

? Programmable clock outputs Slew rate control and Skew control

? Watch Dog Timer and RESET# output pins

? 48-pin SSOP package