UPD17073 NEC, UPD17073 Datasheet - Page 12
![no-image](/images/manufacturer_photos/0/4/470/nec_sml.jpg)
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
- Current page: 12 of 226
- Download datasheet (2Mb)
1. PIN FUNCTION
1.1 Pin Function List
12
QFP
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
Pin No.
TQFP
10
11
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
6
7
8
9
P1C0/SO0
P0A0
P0A1
P0A2
P0A3
P1B0
P1B1
P1B2
P1B3
P1A0
P1A1
P1A2/AD0
P1A3/AD1
P0C0
P0C1
P0D2/AMIFC
P0D3/FMIFC/
AMIFC
GND
EO
VCOL
VCOH
REG0
Symbol
Port 1C and output of serial interface.
•
•
4-bit output port (port 0A).
4-bit output port (port 1B).
Port 1A and analog inputs to A/D converter.
•
•
2-bit I/O port (port 0C).
Input/output mode can be set in 1-bit units.
Port 0D and IF counter inputs.
•
•
Ground
Output from charge pump of PLL frequency synthesizer
Input local oscillation frequency of PLL.
Output of PLL voltage regulator.
Connect this pin to GND via 0.1- F capacitor.
P1C0
• 1-bit output port
SO0
• Serial data output
P1A3-P1A0
• 4-bit input port
AD1, AD0
• Analog inputs to A/D converter
P0D3, P0D2
• 2-bit I/O port
• Can be set in input/output mode in 1-bit units.
FMIFC, AMIFC
• IF counter inputs
REG0
Function
0.1 F
CMOS push-pull
CMOS push-pull
CMOS push-pull
CMOS push-pull
CMOS push-pull
CMOS 3-state
Output format
—
—
—
—
PD17072,17073
Low-level output
Low-level output
Low-level output
Inputs with pull-
down resistor
Input
Input
—
Floating
Floating
Low-level output
At power-ON
reset
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