Datasheet

Chapter 2 Pins and Connections
MC9S08AC16 Series Data Sheet, Rev. 9
Freescale Semiconductor 31
Figure 2-5. Basic System Connections
V
DD
V
SS
(x2)
XTAL
EXTAL
BKGD/MS
RESET
OPTIONAL
MANUAL
RESET
PORT
A
V
DD
BACKGROUND HEADER
C2
C1
X1
R
F
R
S
C
BY
0.1 F
C
BLK
10 F
+
5 V
+
SYSTEM
POWER
I/O AND
PERIPHERAL
INTERFACE TO
SYSTEM
APPLICATION
PTA0
PTA1
PTA2
PTA7
V
DD
PORT
B
PTB0/AD1P0/TPM3CH0
PTB1/AD1P1/TPM3CH1
PTB2/AD1P2
PTB3/AD1P3
PORT
C
PTC0/SCL1
PTC1/SDA1
PTC2/MCLK
PTC3/TxD2
PTC4
PTC5/RxD2
PORT
D
PTD0/AD1P8
PTD1/AD1P9
PTD2/AD1P10/KBIP5
PTD3/AD1P11/KBIP6
PORT
G
PTG0/KBIP0
PTG1/KBIP1
PTG2/KBIP2
PTG3/KBIP3
PTG4/KBIP4
PORT
F
PTF0/TPM1CH2
PTF1/TPM1CH3
PTF4/TPM2CH0
PTF5/TPM2CH1
PTF6
TPMCLK/IRQ
ASYNCHRONOUS
INTERRUPT
INPUT
NOTES:
1. Not required if using the internal clock option.
2. XTAL and EXTAL are PTG5 and PTG6 respectively.
3. RC filters on RESET
and IRQ are recommended for EMC-sensitive applications.
NOTE 1
MC9S08AC16
V
DDAD
V
SSAD
C
BYAD
0.1 F
V
REFL
V
REFH
PTG5/XTAL
PTG6/EXTAL
NOTE 2
NOTE 2
V
DD
4.7 k  –
0.1
 F
V
DD
4.7 k  –10 k 
0.1  F
10 k

NOTE 3
NOTE 3
PORT
E
PTE0/TxD1
PTE1/RxD1
PTE2/TPM1CH0
PTE3/TPM1CH1
PTE4/SS
1
PTE5/MISO1
PTE6/MOSI1
PTE7/SPSCK1