873990AY

www.icst.com/products/hiperclocks.html

REV. B

JUNE 13, 2005

13

Integrated

Circuit

Systems, Inc.

ICS873990

The transistor count for ICS873990 is: 5788

Pin compatible with the MPC990

θ

JA

VS

θθθθθ

0

200

500

Single-Layer PCB, JEDEC Standard Test Boards

58.0°C/W

47.1°C/W

42.0°C/W

Multi-Layer PCB, JEDEC Standard Test Boards

42.3°C/W

36.4°C/W

34.0°C/W

NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.