MC68HC908QL4 Datasheet, PDF (23/226 Pages) Motorola, Inc – Microcontrollers

Table 1-1. Pin Functions
Pin
Name
Description
V_DD
Power supply
V_SS
Power supply ground
PTA0 — General purpose I/O port
PTA0
AD0 — A/D channel 0 input
KBI0 — Keyboard interrupt input 0
PTA1 — General purpose I/O port
PTA1
AD1 — A/D channel 1 input
TCH1 — Timer Channel 1 I/O
KBI1— Keyboard interrupt input 1
PTA2 — General purpose input-only port
PTA2
IRQ — External interrupt with programmable pullup and Schmitt trigger input
KBI2 — Keyboard interrupt input 2
TCLK — External clock source input for the TIM module
PTA3 — General purpose I/O port
PTA3
RST — Reset input, active low with internal pullup and Schmitt trigger input
KBI3 — Keyboard interrupt input 3
PTA4 — General purpose I/O port
PTA4
OSC2 — XTAL oscillator output (XTAL option only)
RC or internal oscillator output (OSC2EN = 1 in PTAPUE register)
AD2 — A/D channel 2 input
KBI4 — Keyboard interrupt input 4
PTA5 — General purpose I/O port
PTA5
OSC1 — XTAL, RC, or external oscillator input
AD3 — A/D channel 3 input
KBI5 — Keyboard interrupt input 5
PTB0
PTB0 — General purpose I/O port
TCH0 — Timer Channel 0 I/O
PTB1
PTB1 — General purpose I/O port
PTB2
PTB2 — General purpose I/O port
AD4 — A/D channel 4 input
PTB3
PTB3 — General purpose I/O port
AD5 — A/D channel 5 input
PTB4
PTB4 — General purpose I/O port
SLCRx — SLC receive input
PTB5
PTB5 — General purpose I/O port
SLCTx — SLC transmit output
PTB6, PTB7 General-purpose I/O port
Freescale Semiconductor
MC68HC908QL4 Data Sheet, Rev. 7
Pin Functions
Input/Output
Power
Power
Input/Output
Input
Input
Input/Output
Input
Input/Output
Input
Input
Input
Input
Input
Input/Output
Input
Input
Input/Output
Output
Output
Input
Input
Input/Output
Input
Input
Input
Input/Output
Input/Output
Input/Output
Input/Output
Input
Input/Output
Input
Input/Output
Input
Input/Output
Output
Input/Output
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