upd75112 Renesas Electronics Corporation., upd75112 Datasheet - Page 40
upd75112
Manufacturer Part Number
upd75112
Description
4-bit Single Chip-microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD75112.pdf
(72 pages)
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40
10.4 Vehicle-Mounted Applications (Trip Computer)
10.5 Push-Button Telephone
To the
Main
Unit
PD75112, 75116
Vehicle Speed
Detection No. of
Rotations
Detection Fuel
Consumption
Key and Gear
Positions
Key Input
Mode Select
Numeric
Input
LED
Display
Key
Matrix
Data
Receive
Data
Trans-
mitter
High
Current
Output
INT1
TI
INT0
Hook Switch
PD75116
PD75116
TO
TO
Filter
SIO
Transmitter-
Receiver/
Speaker
Switchover
SIO
Calling
Sound
LCD
Controller/
Driver
MPX
Buzzer
Display
Driver
PD 6300
PD 6323
PD 6332
Communication
Circuit
Microphone
Amplifier
Speaker
Amplifier
Clock Alarm
Average
Spead
Arrival Time,
etc.
LCD Display
Receiver
Transmitter-
Microphone
Speaker