Freescale Semiconductor, Inc.
General Description
Pin Assignments
Table 1-1. External Pins Summary
Pin Name
Function
Driver Type Hysteresis
Reset State
PTA7–PTA0
General-purpose I/O
Dual state
Dual state
No
No
Input Hi-Z
General-purpose I/O
ADC channel
PTB7/ATD7–PTB0/ATD0
Input Hi-Z
Input Hi-Z
Input Hi-Z
PTC5–PTC0
PTC5 available in 64-pin package only
General-purpose I/O
General-purpose I/O
Dual state
Dual state
No
No
PTD7
Available in 64-pin package only
General-purpose I/O
ADC channel/timer
external input clock
PTD6/ATD14/TACLK
ADC channel
Dual state
Dual state
Dual state
Dual state
No
No
No
Input Hi-Z
Input Hi-Z
Input Hi-Z
PTD5/ATD13
ADC channel
General-purpose I/O
ADC channel
PTD4/ATD12/TBCLK
ADC channel
TBCLK for 64-pin package only
General-purpose I/O
ADC channel/timer
external input clock
PTD3/ATD11–PTD0/ATD8
ADC channel
General-purpose I/O
ADC channel
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
Input Hi-Z
General-purpose I/O
SPI clock
Dual state
open drain
PTE7/SPSCK
PTE6/MOSI
PTE5/MISO
PTE4/SS
General-purpose I/O
SPI data path
Dual state
open drain
General-purpose I/O
SPI data path
Dual state
open drain
General-purpose I/O
SPI slave select
Dual state
Dual state
Dual state
Dual state
Dual state
Dual state
Dual state
General-purpose I/O
timer channel 1
PTE3/TACH1
PTE2/TACH0
PTE1/RxD
General-purpose I/O
timer channel 0
General-purpose I/O
SCI receive data
General-purpose I/O
SCI transmit data
PTE0/TxD
PTF6
General-purpose I/O
No
Available in 64-pin package only
PTF5/TBCH1–PTF4/TBCH0
Available in 64-pin package only
General-purpose I/O
timer B channel
Yes
MC68HC908AS60 — Rev. 1.0
Technical Data
General Description
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