MC68HC908JL3E Datasheet, PDF (29/226 Pages) Motorola, Inc – Microcontrollers

General Description
Pin Functions
1.6 Pin Functions
Description of the pin functions are provided in Table 1-2.
PIN NAME
VDD
VSS
RST
IRQ1
OSC1
OSC2
PTA[0:6]
PTB[0:7]
PTD[0:7]
Table 1-2. Pin Functions
PIN DESCRIPTION
Power supply.
Power supply ground
RESET input, active low.
With Internal pull-up and schmitt trigger input.
External IRQ pin.
With software programmable internal pull-up and
schmitt trigger input.
This pin is also used for mode entry selection.
X-tal or RC oscillator input.
MC68HC908JL3E/JK3E/JK1E:
X-tal oscillator output, this is the inverting OSC1
signal.
MC68HRC908JL3E/JK3E/JK1E:
Default is RC oscillator clock output, RCCLK.
Shared with PTA6/KBI6, with programmable pull-up.
7-bit general purpose I/O port.
Shared with 7 keyboard interrupts KBI[0:6].
Each pin has programmable internal pull-up device.
PTA[0:5] have LED direct sink capability
8-bit general purpose I/O port.
Shared with 8 ADC inputs, ADC[0:7].
8-bit general purpose I/O port.
PTD[3:0] shared with 4 ADC inputs, ADC[8:11].
PTD[4:5] shared with TIM channels, TCH0 and TCH1.
PTD[2:3], PTD[6:7] have LED direct sink capability
PTD[6:7] can be configured as 25mA open-drain
output with pull-up.
IN/OUT
In
Out
Input
Input
In
Out
In/Out
In/Out
In
In
In
In/Out
In
In/Out
Input
In/Out
In
In/Out
VOLTAGE LEVEL
5V or 3V
0V
VDD
VDD to VDD+V_HI
Analog
Analog
VDD
VDD
VDD
VDD
VSS
VDD
Analog
VDD
Analog
VDD
VSS
VDD
NOTE: On the MC68H(R)C908JK3E/JK1E, the following pins are not available:
PTA0, PTA1, PTA2, PTA3, PTA4, PTA5, PTD0, and PTD1.
MC68H(R)C908JL3E/JK3E/JK1E — Rev. 2.0
MOTOROLA
General Description
Technical Data
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