Datasheet

Table Of Contents
Chapter 2 Pins and Connections
MC9S08SH8 MCU Series Data Sheet, Rev. 3
Freescale Semiconductor 29
Pin Number
Priority
24-pin 20-pin 16-pin 8-pin Port Pin Alt 1 Alt 2 Alt 3 Alt 4 Alt5
1333
V
DD
2—
3444
V
SS
4 5 5 PTB7 SCL
1
1
IIC pins can be repositioned using IICPS in SOPT2, default reset locations are on PTA2 and PTA3.
EXTAL
5 6 6 PTB6 SDA
1
XTAL
6 7 7 PTB5 TPM1CH1
2
2
TPM1CHx pins can be repositioned using TPM1PS in SOPT2, default reset locations are on PTA0 and PTB5.
SS PTC0
3
3
This port pin is part of the ganged output feature. When pin is enabled for ganged output, it will have priority over
all digital modules. The output data, drive strength and slew-rate control of this port pin will follow the configuration
for the PTC0 pin, even in 16-pin packages where PTC0 doesn’t bond out. Ganged output not available in 8-pin
packages.
7 8 8 PTB4 TPM2CH1 MISO PTC0
3
8 9 PTC3 PTC0
3
ADP11
9 10 PTC2 PTC0
3
ADP10
10 11 PTC1 TPM1CH1
2
PTC0
3
ADP9
11 12 PTC0 TPM1CH0
2
PTC0
3
ADP8
12 13 9 PTB3 PIB3 MOSI PTC0
3
ADP7
13 14 10 PTB2 PIB2 SPSCK PTC0
3
ADP6
14 15 11 PTB1 PIB1 TxD ADP5
15 16 12 PTB0 PIB0 RxD ADP4
16 17 13 5 PTA3 PIA3 SCL
1
ADP3
17 18 14 6 PTA2 PIA2 SDA
1
ADP2
18 19 15 7 PTA1 PIA1 TPM2CH0 ADP1
4
4
If ACMP and ADC are both enabled, both will have access to the pin.
ACMP–
4
19 20 16 8 PTA0 PIA0 TPM1CH0
2
ADP0
4
ACMP+
4
20
21
22
23 1 1 1 PTA5
5
IRQ TCLK RESET
24 2 2 2 PTA4 ACMPO BKGD MS
5
Pin is open-drain when configured as output driving high. Pin does not contain a clamp diode to V
DD
and should
not be driven above V
DD
. The voltage measured on the internally pulled up RESET will not be pulled to V
DD
. The
internal gates connected to this pin are pulled to V
DD
.
Lowest
Highest
Table 2-1. Pin Availability by Package Pin-Count