TK-373G
15
Microprocessor : 30622M4A-410GP
(TX-RX UNIT : IC13)
■
Pin function
SEMICONDUCTOR DATA
LCD Driver : LC75823W (Display UNIT IC501)
■
Block diagram
LATCH & DRIVER
SHIFT REGISTER
COMMON
DRIVER
ADDRESS
DETECTOR
CLOCK
GENERATOR
V
DD
CE
CL
DI
V
SS
OSC
INH
V
DD
2
V
DD
1
COM1 COM2 COM3
S52 S51
S1
Pin No.
Name
I/O
Active
Function
1-52 S1-S52
O
-
Segment output for displaying data
transferred form serial data.
53-55 COM1-COM4
O
-
Common drive output.
Frame frequency fo=(fosc/384)Hz
56
VDD
-
-
The display to turn off
57
INH
I
L
INT=L : Turn off
INT=H : Turn on
Apply 2/3 the LCD drive bias voltage
58
VDD1
I
-
form outside. If 1/2 the bias is applied,
connect to VDD2.
Apply 1/3 the LCD drive bias voltage
59
VDD2
I
-
form outside. If 1/2 the bias is applied,
connect to VDD1.
60
VSS
-
-
61
OSC
I/O
-
Oscillation terminal
62
CE
I
H
Chip enable. Serial data transfer terminal.
Connected to the microprocessor.
63
CL
I
Synchronizing clock. Serial data transfer terminal.
Connected to the microprocessor.
64
DI
I
-
Trnsfer data. Serial data transfer terminal.
Connected to the microprocessor.
■
Pin function
1
APC
O
TX:Automatic Power Control data output
2
DTMF
O
DTMF BEEP output
3
2TN
-
Not used
4
DTMSTD
I
Not used
5
SIM
I
Destination select
6
BYTE
I
+5V(5M)
7
CNVSS
I
GND
8
AFSTB
O
Base Band IC strobe/rest output
9
AFFCLK
O
Base Band IC frame rest/system reset output
10
RESET
I
Reset
11
XOUT
O
Clock output
12
VSS
-
GND
13
XIN
I
Clock input
14
VCC
-
+5V
15
NC
I
NC
16
EN2
I
Encoder pulse input 2
17
AUX3
I/O
Not used
18
INT
I
Battery voltage monitor input Low battery:L
19
OE
I
Not used
20
TOTCXO
I
QT/DQT/LTR modulation output(TCXO)
21
EEPDAT
I/O
EEPROM data input/output
22
TOVCO
O
QT/DQT/LTR modulation output(VCO)
23
AUX1
I
24
SFTSTB
O
Shift register strobe output
25
EN1
O
Encoder pulse input 1
26
DACS
I
Chip select output(Max dev) Select:L
27
EN3
I
Not used
28
NC
O
NC
29
AUX4
O
Not used
30
AUX2
I/O
Not used
31
KOUT3
O
Key scan output 3
32
KOUT2
O
Key scan output 2
33
TXD
O
Serial data
34
PTT/RXD
I
PTT on: L/Serial data
35
KOUT1
O
Key scan output 1
36
KOUT0
O
Key scan output 0
37
RDY
-
Not used
38
ALE
O
Not used
39
HOLD
I
Not used
40
HLDA
O
Not used
41
BLCK
O
Not used
42
RDY
O
READ signal
43
BHE
O
Not used
44
WR
O
WRITE signal
45
LCDCS
O
LCD chip enable output
46
CNTDAT
O
Common data output
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
47
CNTCLK
O
Common clock output
(EEPROM,LCD,SHIFT REG,1bit D/A MODEM)
48
CSO
-
Chip select signal
Pin
Port
I/O
Function
No.
Name
