CY2273A Overview
The CY2273A is a clock synthesizer/driver for a Pentium, Pentium II, Cyrix, or AMD processor-based PC using Intel’s 82430TX, 82440LX, ALI Aladdin IV or Aladdin IV+ chipsets. The CY2273A-1 outputs four CPU clocks at 2.5V or 3.3V with up to 83.3MHz operation. There are seven PCI clocks, running at 30 and 33.3MHz.
CY2273A Key Features
- Mixed 2.5V and 3.3V operation
- plete clock solution for Pentium®, Pentium® II, Cyrix, and AMD processor-based motherboards
- Four CPU clocks at 2.5V or 3.3V
- Up to twelve 3.3V SDRAM clocks
- Seven synchronous PCI clocks, one free-running
- One 3.3V 48 MHz USB clock
- One 2.5V IOAPIC clock (-3 option only)
- Two AGP clocks at 60 or 66.6MHz (-2 option only)
- One 3.3V Ref. clock at 14.318 MHz
- I2C™ Serial Configuration Interface