MC68HC908AT32 Datasheet, PDF (33/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Pin Assignments
Table 1-2. External Pins Summary (Continued)
Pin Name
Function
Driver Type Hysteresis
PTF5/TBCH1–PTF4/TBCH0 ** available in
MC68HC08AZ32 emulation only
General-purpose
I/O/timer B channel
Dual state
Yes
PTF3/TACH5 ** timer channel available only in General-purpose I/O
MC68HC08AS20 emulation
timer A channel 5
Dual state
Yes
PTF2/TACH4** TACH4 available
only in MC68HC08AS20 emulation
General-purpose I/O
timer A channel 4
Dual state
Yes
PTF1/TACH3
General-purpose I/O
timer A channel 3
Dual state
Yes
PTF0/TACH2
General-purpose I/O
timer A channel 2
Dual state
Yes
PTG2/KBD2–PTG0/KBD0** keyboard pins
General-purpose I/O/
available only in MC68HC08AZ32 emulation
keyboard wakeup pin
Dual state
Yes
PTH1/KBD4 –PTH0/KBD3 **available only in
MC68HC08AZ32 emulation
General-purpose I/O/
keyboard wakeup pin
Dual state
Yes
V_DD
Chip power supply
N/A
N/A
V_SS
Chip ground
N/A
N/A
V_DDA/V_DDAREF ** V_DDAREF available
in MC68HC08AS20 emulation only
Analog power supply
N/A
N/A
V_SSA/V_REFL ** V_REFL available only
in MC68HC08AS20 emulation
Analog ground/ ADC
reference voltage
N/A
N/A
A_VDD/V_DDAREF ** available only
in MC68HC08AZ32 emulation
ADC power supply/ ADC
reference voltage
N/A
N/A
A_VSS/V_REFL ** available only
in MC68HC08AZ32 emulation
ADC ground/ADC
reference voltage
N/A
N/A
V_REFH
A/D reference voltage
N/A
N/A
OSC1
External clock in
N/A
N/A
OSC2
External clock out
N/A
N/A
CGMXFC
PLL loop filter cap
N/A
N/A
IRQ
External interrupt request
N/A
N/A
RST
Reset
N/A
N/A
CANRx
CAN serial input
N/A
Yes
CANTx
CAN serial output
Output
No
BDRxD
BDLC-D serial input
N/A
No
BDTxD
BDLC-D serial output
Output
No
Reset
State
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Input Hi-Z
Output
N/A
Input Hi-Z
Output low
Input Hi-Z
Output
Input Hi-Z
Output low
MC68HC908AT32 Data Sheet, Rev. 3.1
Freescale Semiconductor
33