8
8Bit Single Chip Microcontroller
DMC73C168
3.2 Description
NAME
Pin No. I/O
FUNCTIONAL DESCRIPTION
PORT TYPE
A0/FM IF
A1/AM IF
1
2
I/O Port A is a bidirectional data port.
Analog-IN or
Logic-IN/
I/O These Ports can be selected as universal Counter
input. A0 and A1 work as the FM IF and AM IF pin,
independently. The maximum input frequency is 5MHz
for AM IF (0.1Vp-p) and 20MHz (0.1Vp-p) for FM IF.
Push-Pull OUT
A2/AD1
A3/AD2
3
4
I/O These Posts can be selected for an A/D Converter Input.
I/O 2 Channel/8-Bit Analog-to-Digital Converter are used for
the Sequential Comparison method by program.
Analog-IN or
Logic-IN/
Push-Pull OUT
Reference Voltage of the A/D Converter is the same
level of VDD (5V 10%)
¡
¾
A4/ECI1
A5/ECI2
5
6
I/O The A4,A5 Port can be used as event counter input 1,2.
I/O
A6/INT4
A7/INT3
7
8
I/O These Ports can be used as external interrupt pin.
I/O
Logic-IN or
Schmitt-
Trigger-IN/
Push-Pull OUT
E0/SO1
E1/SI1
9
I/O Port E is a bidirectional data port.
10
11
I/O These Ports can be selected as serial interface (SIO) 1.
I/O E0, E1 and E2 work as the serial output, serial input and
serial clock pin, respectively.
Logic-IN/
E2/SCLK1
Push-Pull OUT
E3/SO2
E4/SI2
12
13
14
I/O These Ports can be selected as serial interface (SIO) 2.
I/O E3, E4 and E5 work as the serial output, serial input and
I/O serial clock pin, respectively.
Logic-IN/
E5/SCLK2
Push-Pull OUT
E6
15
16
I/O
E7/BEEP
I/O The E7 Port can be used as BEEP output pin.
F0
F1
F2
F3
F4
F5
F6
F7
17
18
19
20
21
22
23
24
I/O Port F is a bidirectional data port.
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Logic-IN/
Push-Pull OUT
£Ä£Á£Å£×£Ï £Ï
DAEWOO ELECTRONICS CO., LTD.
DAEWOO [ DAEWOO Electronic Components ]
