DS_8023C_019
73S8023C Data Sheet
Table of Contents
1
Pin Description.................................................................................................................................... 5
1.1 Card Interface ............................................................................................................................... 5
1.2 Miscellaneous Inputs and Outputs................................................................................................ 5
1.3 Power Supply and Ground............................................................................................................ 5
1.4 Microcontroller Interface ............................................................................................................... 6
2
3
4
5
6
7
8
System Controller Interface............................................................................................................... 7
Oscillator.............................................................................................................................................. 8
DC-DC Converter – Card Power Supply .......................................................................................... 8
Voltage Supervision ........................................................................................................................... 9
Power Down....................................................................................................................................... 10
Over-Temperature Monitor............................................................................................................... 10
Activation and Deactivation............................................................................................................. 11
8.1 Activation Sequence (Synchronous Mode) ................................................................................ 11
8.2 Deactivation Sequence (Synchronous Mode) ............................................................................ 11
8.3 Activation Sequence (Asynchronous Mode)............................................................................... 12
8.4 Deactivation Sequence (Asynchronous Mode) .......................................................................... 14
9
OFF and Fault Detection .................................................................................................................. 14
10 I/O Circuitry and Timing ................................................................................................................... 15
11 Typical Application Schematic........................................................................................................ 17
12 Electrical Specification..................................................................................................................... 18
12.1 Absolute Maximum Ratings........................................................................................................ 18
12.2 Recommended Operating Conditions......................................................................................... 18
12.3 Package Thermal Parameters.................................................................................................... 18
12.4 Card Interface Characteristics .................................................................................................... 19
12.5 Digital Signals ............................................................................................................................. 22
12.6 DC Characteristics...................................................................................................................... 23
12.7 Voltage / Temperature Fault Detection Circuits.......................................................................... 23
13 Mechanical Drawing (32-QFN) ......................................................................................................... 24
14 Package Pin Designation (32-QFN)................................................................................................. 25
15 Ordering Information........................................................................................................................ 26
16 Related Documentation.................................................................................................................... 26
17 Contact Information.......................................................................................................................... 26
Revision History........................................................................................................................................ 27
Rev. 1.5
3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
