Motorola MC68HC908AB32 Technical Data Manual page 39

Pin Name
PTF4/TBCH0
PTF3/TBCH3
PTF2/TBCH2
PTF1/TACH3
PTF0/TACH2
PTG2/KBD2–PTG0/KBD0
PTH1/KBD4–PTH0/KBD3
V
DD
V
SS
V
DDA
V
SSA
V
REFH
A /V
VSS REFL
V
DDAREF
OSC1
OSC2
CGMXFC
IRQ
RST
MC68HC908AB32 Rev. 1.0
—
MOTOROLA
Table 1-1. I/O Pins Summary
Function
General purpose I/O
/ Timer B channel 0
General purpose I/O
/ Timer B channel 3
General purpose I/O
/ Timer B channel 2
General purpose I/O
/ Timer A channel 3
General purpose I/O
/ Timer A channel 2
General purpose I/O with
key wakeup feature
General purpose I/O with
key wakeup feature
Logical chip power supply
Logical chip ground
Analog power supply (CGM)
Analog ground (CGM)
ADC reference voltage
ADC ground and reference
voltage
ADC power supply
External clock in
External clock out
PLL loop filter cap
External interrupt request
Reset
Details of the clock connections to each of the modules on the
MC68HC908AB32 are shown in
clock source is also given in
General Description
Driver Type Hysteresis
Dual State
Dual State
Dual State
Dual State
Dual State
Dual State
Dual State
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Table 1-2. A short description of each
Table 1-3.
General Description
I/O Pin Summary
Reset State
Yes Input (Hi-Z)
Yes Input (Hi-Z)
Yes Input (Hi-Z)
Yes Input (Hi-Z)
Yes Input (Hi-Z)
Yes Input (Hi-Z)
Yes Input (Hi-Z)
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA Input (Hi-Z)
NA Output
NA NA
NA Input (pullup)
NA Input (pullup)
Technical Data
39