Datasheet

Analog-to-Digital Converter
Technical Data MC68HC912DT128A — Rev 4.0
368 Analog-to-Digital Converter MOTOROLA
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
Figure 19-1. Analog-to-Digital Converter Block Diagram
MODE AND TIMING CONTROLS
ATD 0
ATD 1
ATD 2
ATD 3
ATD 4
ATD 5
ATD 6
ATD 7
SAR
RC DAC ARRAY
AND COMPARATOR
INTERNAL BUS
V
DDA
V
SSA
V
RLx
V
RHx
CLOCK
SELECT/PRESCALE
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
REFERENCE
SUPPLY
HC12 ATD BLOCK
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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