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M@ EXPLANATION
OF IC
M uPD784215
Radio, Tape Controller
Outward Form
100 pins, plastic QFP
Terminal
Description
052-3917-00
Function
Pin No | Symbol
Function
Symbol
Ground
Not in use
{
Not in use
Reset signal input. "L"=Reset
Not in use
=
17
N.C
19
| Ki-0
20
| B/U-DET
18
RDS-CLK
RDS clock pulse input
Not in use
Key scan signal input. Ref. Table 1
Backup intterrupt signa! input.
"H'=Backup ON
ACC power supply ON signal
input. "L°=ACC ON
PACK-IN
| | Cassette pack insertion detection
terminal. "L"=Tape in
23
{AVDD
— | Positive supply voltage
24
y AVREFO
— | Reference vottage input for AD converter
25
NOISE-IN1
Input terminal of A/D converter to
detect the noise of FM
26
| NOISE-IN2
Not in use
30
REMCON-1
Input terminal of internal A/D
converter to detect the remote
control switch
t
31
REMCON-2
Input terminal of internal A/D
converter to detect the remote
[control switch
Input terminal of A/D converter to
detect the voltage of Backup line
=i Ground
Input terminal for Intercom
interruption. "H'=Interrupt ON
PUT68G
PU1681/EU
4454
Not in use
Clock pulse output to electrical volume 1C
4
Sera! data output to electrical volumelC
Chip enable output to electrical volumelC
Mute signal output to electrical volumelC
5V power supply circuit conrol
signal output. "L"=ON
14V power supply control signal
Output. "H"=ON
"H"=Reverse.
"L"=Forward
Not in use
"H"=Main motor ON
Not in use
Not in use
+
Not in use
INot in use
Not in use
Not in use
Not in use
Not in use
T
.
Not in use
Not in use
Area setting input. Ref . Table 2
Area setting input. Ref . Table 2
Not in use
Not in use
Not in use
Not in use
{Not in use
|
Not in use
4
[Ground
Not in use
Not in use
Not in use
Not in use
Not in use
Not in use
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