Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller QFP 80 (14x14) 16-Bit 8 MHz I/O number 63

Analog-to-Digital Converter (ATD)

M68HC12B Family Data Sheet, Rev. 9.1

278 Freescale Semiconductor

Figure 17-1. ATD Block Diagram

ATD0

SAR

RC DAC ARRAY

AND COMPARATOR

V

DDA

V

SSA

V

RL

V

RH

ANALOG MUX

AND

SAMPLE BUFFER

AN7/PAD7

AN6/PAD6

AN5/PAD5

AN4/PAD4

AN3/PAD3

AN2/PAD2

AN1/PAD1

AN0/PAD0

ATD1

ATD2

ATD3

ATD4

ATD5

ATD6

ATD7

MODE AND TIMING CONTROL

CLOCK

SELECT/PRESCALE

PORT AD DATA

INPUT REGISTER

AMPLIFIER

INTERNAL BUS