MC68HC12 Datasheet, PDF (368/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

Analog-to-Digital Converter
19.2.1 Features
• 8/10 Bit Resolution
• 10 µs, 10-Bit Single Conversion Time
• Sample and Transfer Buffer Amplifier
• Programmable Sample Time
• Left/Right Justified Result Data
• Conversion Completion Interrupt
• Analog Input Multiplexer for 8 Analog Input Channels
• Analog/Digital Input Pin Multiplexing
• 1, 4, 8 Conversion Sequence Lengths
• Continuous Conversion Mode
• Multiple Channel Scans
RC DAC ARRAY
AND COMPARATOR
SAR
ATD 0
ATD 1
ATD 2
ATD 3
ATD 4
ATD 5
ATD 6
ATD 7
V_RHx
V_RLx ^REFERENCE
V_DDA
V_SSA
SUPPLY
ANALOG MUX
AND
SAMPLE BUFFER AMP
PORT AD
DATA INPUT REGISTER
ANx7/PADx7
ANx6/PADx6
ANx5/PADx5
ANx4/PADx4
ANx3/PADx3
ANx2/PADx2
ANx1/PADx1
ANx0/PADx0
CLOCK
SELECT/PRESCALE
INTERNAL BUS
HC12 ATD BLOCK
Figure 19-1. Analog-to-Digital Converter Block Diagram
Technical Data
368
Analog-to-Digital Converter
MC68HC912DT128A — Rev 4.0
MOTOROLA