Chapter 2 Pins and Connections
Figure 2-3
shows the 44-pin LQFP pin assignments for the MC9S08AC128 Series device.
PTC2/MCLK
PTG6/EXTAL
PTC5/RxD2
PTC1/SDA1
PTC3/TxD2
PTC0/SCL1
PTG5/XTAL
BKGD/MS
44
PTC4 1
IRQ/TPMCLK
RESET
PTF0/TPM1CH2
PTF1/TPM1CH3
PTF4/TPM2CH0
PTF5/TPM2CH1
PTE0/TxD1
PTE1/RxD1
PTE2/TPM1CH0
PTE3/TPM1CH1 11
13
12
PTE7/SPSCK1
PTE5/MISO1
PTE6/MOSI1
PTA0
PTE4/SS1
PTG0/KBI1P0
PTG1/KBI1P1
PTG2/KBI1P2
V
SS
V
DD
14
15
16
17
18
19
20
21
2
3
4
5
6
7
8
9
10
43
42
41
40
39
38
37
36
35
V
REFH
34
33 PTG3/KBI1P3
32
31
30
29
PTD3/KBI1P6/AD1P11
PTD2/KBI1P5/AD1P10
V
SSAD
V
DDAD
PTD1/AD1P9
PTD0/AD1P8
PTB3/AD1P3
PTB2/AD1P2
PTB1/TPM3CH1/AD1P1
23 PTB0/TPM3CH0/AD1P0
22
PTA1
28
27
26
25
24
44-Pin LQFP
Figure 2-3. MC9S08AC128 Series in 44-Pin LQFP Package
Table 2-4. Pin Availability by Package Pin-Count
Pin Number
80
1
2
3
4
5
6
7
8
64
1
2
3
4
5
6
7
8
44
1
2
3
4
5
—
—
6
Lowest <--
Port Pin
PTC4
IRQ
RESET
PTF0
PTF1
PTF2
PTF3
PTF4
TPM1CH2
TPM1CH3
TPM1CH4
TPM1CH5
TPM2CH0
TPMCLK
1
Priority
Alt 1
--> Highest
Alt 2
MC9S08AC128 MCU Series Data Sheet, Rev. 2
Freescale Semiconductor
7
V
REFL
V
SS
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
