mc9s08qa4 Freescale Semiconductor, Inc, mc9s08qa4 Datasheet - Page 4

• Manufacturer Part Number: mc9s08qa4
• Description: Mc9s08qa4 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Pin Assignments
4
PTA4/ACMPO/BKGD/MS
PTA4/ACMPO/BKGD/MS
1
2
PTA5/IRQ/TCLK/RESET
PTA5/IRQ/TCLK/RESET
8-Pin
PIN
Pin does not contain a clamp diode to V
above V
pin will not be pulled to V
are pulled to V
If ACMP and ADC are both enabled, both will have access to the pin.
1
2
3
4
5
6
7
8
Figure 2. MC9S08QA4 Series in 8-Pin Packages
Port Pin
DD
Lowest
PTA5
PTA4
PTA3
PTA2
PTA1
PTA0
. The voltage measured on the internally pulled-up RESET
1
DD
Table 2-1. Pin Sharing Priority
.
V
V
V
V
MC9S08QA4 Series, Rev. 2
DD
DD
SS
SS
KBIP3
KBIP2
KBIP1
KBIP0
Alt 1
IRQ
8-Pin PDIP/SOIC
1
2
3
4
DD
1
2
3
4
. The internal gates connected to this pin
8-Pin DFN
TPMCH0
ACMPO
Priority
ADP3
ADP2
TCLK
Alt 2
8
7
6
5
DD
8
7
6
5
PTA0/KBIP0/TPMCH0/ADP0/ACMP+
PTA1/KBIP1/ADP1/ACMP–
PTA2/KBIP2/ADP2
PTA3/KBIP3/ADP3
PTA0/KBIP0/TPMCH0/ADP0/ACMP+
PTA1/KBIP1/ADP1/ACMP–
PTA2/KBIP2/ADP2
PTA3/KBIP3/ADP3
and must not be driven
ADP1
ADP0
BKGD
Alt 3
2
2
ACMP–
ACMP+
Highest
RESET
Alt 4
V
V
MS
DD
SS
2
2
Freescale Semiconductor