C8051F99X_10 Datasheet, PDF (2/322 Pages) Silicon Laboratories – Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU

C8051F99x-C8051F98x
Table of Contents
1. System Overview.................................................................................................... 17
1.1. CIP-51™ Microcontroller Core.......................................................................... 25
1.1.1. Fully 8051 Compatible.............................................................................. 25
1.1.2. Improved Throughput ............................................................................... 25
1.1.3. Additional Features .................................................................................. 25
1.2. Port Input/Output............................................................................................... 26
1.3. Serial Ports ....................................................................................................... 27
1.4. Programmable Counter Array ........................................................................... 27
1.5. SAR ADC with 16-bit Auto-Averaging Accumulator and Autonomous 
Low Power Burst Mode..................................................................................... 28
1.6. Programmable Current Reference (IREF0) ...................................................... 29
1.7. Comparator ....................................................................................................... 29
2. Ordering Information.............................................................................................. 31
3. Pinout and Package Definitions............................................................................ 32
4. Electrical Characteristics....................................................................................... 46
4.1. Absolute Maximum Specifications .................................................................... 46
4.2. Electrical Characteristics................................................................................... 47
5. SAR ADC with 16-bit Auto-Averaging Accumulator and 
Autonomous Low Power Burst Mode................................................................... 64
5.1. Output Code Formatting ................................................................................... 65
5.2. Modes of Operation .......................................................................................... 66
5.2.1. Starting a Conversion............................................................................... 66
5.2.2. Tracking Modes........................................................................................ 67
5.2.3. Burst Mode ............................................................................................... 68
5.2.4. Settling Time Requirements ..................................................................... 69
5.2.5. Gain Setting.............................................................................................. 70
5.3. 8-Bit Mode......................................................................................................... 70
5.4. 12-Bit Mode (C8051F980/6 and C8051F990/6 devices only)........................... 70
5.5. Low Power Mode .............................................................................................. 70
5.6. Programmable Window Detector ...................................................................... 78
5.6.1. Window Detector In Single-Ended Mode ................................................. 80
5.6.2. ADC0 Specifications................................................................................. 80
5.7. ADC0 Analog Multiplexer.................................................................................. 81
5.8. Temperature Sensor ......................................................................................... 83
5.8.1. Calibration ................................................................................................ 84
5.9. Voltage and Ground Reference Options........................................................... 86
5.10.External Voltage Reference.............................................................................. 87
5.11.Internal Voltage Reference............................................................................... 87
5.12.Analog Ground Reference................................................................................ 87
5.13.Temperature Sensor Enable ............................................................................ 87
5.14.Voltage Reference Electrical Specifications ..................................................... 88
6. Programmable Current Reference (IREF0) .......................................................... 89
6.1. PWM Enhanced Mode ...................................................................................... 89
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Rev. 1.0