Panasonic KX-HCM280, Service Manual

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Pin No. Pin Name Description
21,29,40 AVDD +5.0V analog power supply pins or 3.3V power
supply pins
50, 56, 71, 7,
94,14, 42, 66, 16
VSS Ground pins.
28, 36, 37 AVSS Analog ground pins.
75, 73, 69,67, 38 NC No-Connected pins
15.3.2. Buffer Symbols
O4 Output buffer with 2mA source and 4mA
sink.
I/O4 Output buffer with 2mA source and 4mA
sink.
O162 Output buffer with 2mA source and 16mA
sink.
O24 Output buffer with 12mA source and 24mA
sink.
OD16 Output buffer with 16mA sink.
OD24 Output buffer with 24mA sink.
I/O24 Bi-directional buffer with1 2mA source and
24mA sink.
I Input buffer with TTL levels.
IS Input buffer with Schmidt Trigger Hysteresis.
Iclk Clock input buffer.
**
Signal is 5.0V input tolerant when VCC=3.3V
Note:
When the device is designed at VCC=3.3V, the buffer symbols are not consistent with there
associated drive current strengths. Please refer to the DC Electrical Section for additional details.
DC levels and conditions defined in the DC Electrical Characteristics section.
15.4. IC601
87