Read Panasonic KX-T7440CB / KX-T7440C Service Manual online
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6
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KX-T7440C/KX-T7440C-B
Classification Terminal
Pin
Input /
Function
Signal
Number
Output
Power
Vcc
59
Adds the power voltage.
GND
8
Connects.
There is no terminal for the user application.
Connects the Vcc voltage.
Reset
RESET
5
Input
Used to reset the MCU.
These are the input / output terminals for the main
oscillator. Please connect to a ceramic oscillator,
crystal oscillator, or an exterior oscillating circuit.
These are input / output terminals for the save oscillator.
Please connect to a 32.768kHz crystal.
When not using a 32.768kHz crystal oscillator,
set terminal X1 to Vcc and open terminal X2.
There is an addressing input / output terminal for each
byte. D
0
-D
3
terminals can supply a maximum of 10mA
current to each terminal in the source current input /
9~17
output terminal.
D
4
, D
5
, D
9
~
11
terminals can supply a maximum of 15mA
current to each terminal in the sink current input / output
terminal.
These are addressing input terminals for each
byte.
R0
0
~R4
3
Input /
These are addressing input / output terminals for each
R6
0
~RA
1
Output
4 bytes.
RB
02
,RD
01
,RE
0
60~64,1
Input
These are addressing input terminals for each 4 bytes.
INT
0
,INT
1
,
These are the exterior separation input terminals.
INT
2
~INT
4
This input terminal is used to change from the stop
mode to the active mode.
Input /
This is the serial interface clock input terminal.
Serial
Output
Interface
SI
1
38
Input
This is the serial interface receiving data input terminal.
SO
1
39
Output
This is the serial interface sending data output terminal.
TOC,TOD
35,34
Output
These are the timer output terminals.
EVND
36
Input
This is the event input terminal.
COMP
0
,COMP
1
63,64
Input
These are the comparator analog input terminals.
This is the analog input terminal threshold voltage
standard level power terminal.
After setting to the reset position when the stop mode
Frequency
returns to the active mode, this is the terminal which
Division
selects the system lock frequency division comparison.
Comparison
If 4 frequency division is selected, connect to the Vcc
Selector
voltage. If 32 frequency division is selected,
connect to the GND voltage.
TEST
Test
2
Input
OSC
1
Oscillation
3
Input
4
Output
X1
6
Input
X2
7
OSC
2
Output
Port
Input/
Output
Output
D
0
∼
D
5
D
9
∼
D
11
18,19
Input
D
12
,
D
13
20
∼
57
Interrupt
19
∼
23
Input
Stop Clear
STOPC
18
Input
37
SCK
1
Timer
VCref
1
Input
58
SEL
Voltage
Comparator
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