UPD17073 NEC, UPD17073 Datasheet - Page 14

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

14
QFP
31
32
33
34
35
49
50
51
52
53
54
55
56
—
|
Pin No.
TQFP
35
36
37
39
40
56
57
58
60
61
62
63
64
12
38
45
54
59
5
|
COM0
COM1
COM2
COM3
LCD0
LCD14
CE
INT
BEEP
P0B0
P0B1
P0B2/SCK
P0B3/SI/SO1
NC
|
Symbol
Common signal outputs of LCD controller/driver.
Segment signal outputs of LCD controller/driver.
Device operation select and reset signal input.
External interrupt request signal input.
Interrupt request is issued at rising or falling edge
of signal input to this pin.
BEEP signal output pin.
BEEP output of 1.5 kHz or 3 kHz can be selected.
Port 0B and serial interface I/O.
•
•
•
•
No connection
P0B3-P0B0
• 4-bit I/O port
• Can be set in input or output mode in 1-bit units.
SCK
• Serial clock I/O
SO1
• Serial data output
SI
• Serial data input
Function
CMOS ternary
output
CMOS push-pull
CMOS push-pull
CMOS push-pull
Output format
—
—
—
PD17072,17073
Low-level output
Low-level output
Input
Input
Low-level output
Input
At power-ON
reset
—