Datasheet

MC9S08QB8 Series MCU Data Sheet, Rev. 3
Pin Assignments
Freescale Semiconductor4
2 Pin Assignments
This chapter shows the pin assignments for the MC9S08QB8 series devices.
Table 1. Pin Availability by Package Pin-Count
Pin Number <-- Lowest Priority --> Highest
28 24 16 Port Pin Alt 1 Alt 2 Alt 3 Alt 4
1——PTC5
2——PTC4
3 23 1 PTA5 IRQ TCLK RESET
4 24 2 PTA4 ACMPO BKGD MS
513 V
DD
62— V
DDA
/V
REFH
73— V
SSA
/V
REFL
844 V
SS
9 5 5 PTB7 EXTAL
10 6 6 PTB6 XTAL
11 7 7 PTB5 TPMCH0
1
1
TPMCH0 pin can be repositioned using at PTB5 TPMCH0PS in SOPT2, default
reset location is PTA0.
12 8 8 PTB4
13 — — PTC3
14 — — PTC2
15 9 — PTC1
16 10 — PTC0
17 11 9 PTB3 KBIP7 ADP7
18 12 10 PTB2 KBIP6 ADP6
19 13 11 PTB1 KBIP5 TxD ADP5
20 14 12 PTB0 KBIP4 RxD ADP4
21 15 — PTA7
22 16 — PTA6
23 17 13 PTA3 KBIP3 ADP3
24 18 14 PTA2 KBIP2 ADP2
25 19 15 PTA1 KBIP1 ADP1
2
2
If ADC and ACMP are enabled, both modules will have access to the pin.
ACMP–
2
26 20 16 PTA0 KBIP0 TPMCH0 ADP0
2
ACMP+
2
27 21 — PTC7
28 22 — PTC6