W83194R-630A Overview
The W83194R-630A is a Clock Synthesizer for SiS 540/630 chipset. W83194R-630A provides all clocks required for high-speed RISC or CISC microprocessor such as AMD,Cyrix,Intel Pentium, Pentium II and also provides 16 different frequencies of CPU clocks frequency setting. All clocks are externally selectable with smooth transitions.
W83194R-630A Key Features
- Supports Pentium™, Pentium™ II, AMD and Cyrix CPUs with I2C
- 3 CPU clocks
- 14 SDRAM clocks for 3 DIMMs
- 7 PCI synchronous clocks
- Optional single or mixed supply: (All Vdd = 3.3V) or (Other s Vdd = 3.3V, VddLCPU=2.5V)
- Skew form CPU to PCI clock 1 to 4 ns, center 2.6 ns
- SDRAM frequency synchronous or asynchronous to CPU clocks
- Smooth frequency switch with selections from 66 to 166mhz
- I2C 2-Wire serial interface and I2C read back
- 0.5%, 0.75%center type, 0~0.5% down type spread spectrum to reduce EMI