PD178016GC-051_15 Datasheet, PDF (14/96 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER WITH BUILT-IN PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO APPLICATIONS

µPD178016GC-051
Pin No. Symbol
Pin name
Description
I/O type
38
LCD CLK LCD driver clock
output
Output pin for sending the serial clock to the LCD controller/driver
(µPD16431A).
Reads data at a rising edge and outputs data at a falling edge.
The serial interface with the LCD controller/driver is of 2-wire serial
type.
CMOS
push-pull
output
39
LCD STB LCD driver strobe
Output pin for the strobe signal to the LCD controller/driver
signal output
(µPD16431A).
Outputs data while low.
Processes data at a rising edge.
CMOS
push-pull
output
40
LCD OFF LCD driver display Output pin for sending the display OFF signal to the LCD controller/ CMOS
OFF signal output driver (µPD16431A).
push-pull
output
41
KEYREQ LCD driver key
Input pin for the key request signal, output by the LCD controller/ Input
request signal input driver (µPD16431A). When a high level signal is input, key data is
read.
42
POWIN Power key signal
Signal input pin used to detect power key input.
input
Input
43
PNL LED Panel detachment Output pin for the LED signal indicating that the front panel has
detection LED signal been detached. In this state, the pin outputs a 1-Hz signal.
output
The active level is high.
CMOS
push-pull
output
44
MONO
MONO signal output Control signal output pin of forced MONO.
The signal is output as follows:
MONO pin
Description
CMOS
push-pull
output
0
Forced MONO ON
1
Forced MONO OFF
(0: Low, 1: High)
This pin outputs a high level when the power is first applied.
45
VOL SDA Electronic volume
Input/output pin for the serial data that is fed to the electronic
control data input/ volume control (TDA7313, TEA6320).
output
Input
N-ch
open-
drain
output
46
VOL SCL Electronic volume
Output pin for the serial clock that is fed to the electronic volume
N-ch
control clock output control (TDA7313, TEA6320).
open-
Data is read at a rising edge and data is output at a falling edge. drain
The interface with the electronic volume control is of I²C bus type. output
47
CD DATA CD changer data
Output pin for the data to the CD changer.
output
N-ch
open-
drain
output
48
LOUD
Loudness signal
output
Output pin for the loudness control signal.
The signal is output as indicated in the table below.
LOUD pin
Description
N-ch
open-
drain
output
0
Loudness OFF
1
Loudness ON
(0: Low, 1: High)
This pin outputs a low level when the power is first applied.
12