HD6432621 Hitachi, HD6432621 Datasheet - Page 627
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
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16.1.3
Table 16-1 summarizes the input pins used by the A/D converter.
The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter.
The Vref pin is the A/D conversion reference voltage pin.
The 16 analog input pins are divided into two channel sets and two groups, with analog input pins
0 to 7 (AN0 to AN7) comprising channel set 0, analog input pins 8 to 15 (AN8 to AN15)
comprising channel set 1, analog input pins 0 to 3 and 8 to 11 (AN0 to AN3, AN8 to AN11)
comprising group 0, and analog input pins 4 to 7 and 12 to 15 (AN4 to AN7, AN12 to AN15)
comprising group 1.
Table 16-1 A/D Converter Pins
Pin Name
Analog power supply pin
Analog ground pin
Reference voltage pin
Analog input pin 0
Analog input pin 1
Analog input pin 2
Analog input pin 3
Analog input pin 4
Analog input pin 5
Analog input pin 6
Analog input pin 7
Analog input pin 8
Analog input pin 9
Analog input pin 10
Analog input pin 11
Analog input pin 12
Analog input pin 13
Analog input pin 14
Analog input pin 15
A/D external trigger input
pin
Pin Configuration
Symbol
AVCC
AVSS
Vref
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
AN12
AN13
AN14
AN15
ADTRG
I/O
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Function
Analog block power supply
Analog block ground and reference voltage
A/D conversion reference voltage
Channel set 0 (CH3 = 0) group 0 analog inputs
Channel set 0 (CH3 = 0) group 1 analog inputs
Channel set 1 (CH3 = 1) group 0 analog inputs
Channel set 1 (CH3 = 1) group 1 analog inputs
External trigger input for starting A/D
conversion
583
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