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Generates essential clock signals for the motherboard
4V to 7V operating supply range
Supports 80286, 80386 and 80486 based designs
Wide range of selectable output frequencies
< 2ns skew between CPU and 2X CPU clock outputs
Single low cost crystal (14.318Mhz) used as reference frequency
Smooth transition on frequency switching
50% duty cycle
Power down mode for low power consumption
TTL or CMOS compatible outputs with 12mA drive capability
Low, short and long term jitter
14 pin DIP and 14 pin SOIC (300 mil body) package options
Description
The VT8225 is a universal clock generator for motherboard design. The product at a glimpse:
1. Generates all kinds of required clocks for CPU and bus operation from 6 Mhz to 80 Mhz.
2. Eliminates at least two oscillators, which are oscillators for CPU and 14.318MHz oscillator.
3. Simplifies inventory: VT8225 covers required main clock for the motherboard design.
4. Provides a reliable clock for the PLL design.
5. Is pin-to-pin compatible to oscillator.
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