Panasonic KX-T7456 - Digital 24 Button Speakerphone Display, Specifications

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Classification Terminal
Pin No. Input/
Output
Function
Power
supply Vcc 59
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Power supply terminal
GND 8
---
Ground terminal
Test
2 Input Not the user’s terminal. Connect to the Vcc terminal.
Reset
RESET 5 Input
Reset terminal for MCU.
Oscillation
OSC1 3 Input
Input/output terminal to the main oscillator. Connect
the ceramic oscillator, crystal oscillator, or external
oscillation circuit.
OSC2 4 Output
X1 6 Input
Input/output terminal to the sub oscillator. Connect
the 32.768kHz crystal oscillator. If not, fix X1 terminal
Vcc and open X2 terminal.
X2 7 Output
ResetTestPort
D0~D5
D9~D11
9~17 Input/
output
Input/output terminal which is adressed every 1
The terminal D0~D3 are the source large current
output terminal, which supplies the current of max.
10mA to each terminal.
The terminal D4, D5, D9~D11 are sink iarge current
output terminal, which supplies the current of max.
15mA to each terminal.
D12, D13 18, 19 Input Input terminal which is adressed every 1 bit.
R00,~R43
R60,~RA1
20~57 Input/
output
Input/output terminal which is adressed every 4
RB0~2,
RD0~1,
RE0
60~64, 1 Input Input terminal which is adressed every 4 bit.
Interrupt
INT2 ~
INT4,
19~23 Input Input terminal for external interrupt.
Stop clear 18 Input Input terminal used for the transfer from stop mode
active mode
Serial
interface
37 Input/
output
Clock input/output terminal for serial interface.
SI1 38 Input RX data input terminal for serial interface.
SO1 39 Output TX data output terminal for serial interface.
Timer TOC, TOD 35, 34 Output Timer output treminal.
EVND 36 Input Event input terminal.
Voltage
comparator
COMP0,
COMP1
63, 64 Input Analog input terminal for comparator.
VCref 1
---
Reference level voltage terminal for threshold voltage
analog input terminal.
Divide ratio
selection
SEL 58 Input
The terminal which selects the divide ratio of system
clock right after the reset and when returned to
mode from stop mode.
Connect to Vcc voltage when selecting the divide
and connect to GND voltage when selecting the
by-32.
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