pt7a8980 Pericom Technology Inc, pt7a8980 Datasheet - Page 2

• Manufacturer Part Number: pt7a8980
• Description: Pt7a8980/8980l Digital Switch
• Manufacturer: Pericom Technology Inc

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PT0011(12/05)
Contents
Features ............................................................................................................................................ 1
Applications ...................................................................................................................................... 1
Description ........................................................................................................................................ 1
Ordering Information ........................................................................................................................ 1
Block Diagram .................................................................................................................................. 3
Pin Information ................................................................................................................................. 4
Functional Description ....................................................................................................................... 6
Detailed Specifications ..................................................................................................................... 10
Notes .............................................................................................................................................. 19
Pin Assignment ......................................................................................................................... 4
Pin Configuration ...................................................................................................................... 4
Pin Description ......................................................................................................................... 5
Input and Output Control ......................................................................................................... 6
Microprocessor Interface and Address Selection ...................................................................... 6
ST-BUS Timing Reference ....................................................................................................... 7
Control Register ....................................................................................................................... 7
Normal Mode .......................................................................................................................... 8
Message Mode ........................................................................................................................ 8
ST-BUS Output High Impedance ............................................................................................. 8
CSTo Output ........................................................................................................................... 8
Absolute Maximum Ratings .................................................................................................. 10
Recommended Operating Conditions ...................................................................................... 10
DC Electrical, Power Supply and Capacitance Characteristics ................................................ 11
AC Electrical Characteristics ................................................................................................. 12
Mechanical Information ......................................................................................................... 17
Table of Contents
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PT7A8980/8980L Digital Switch
Data Sheet
Page
Ver:5