Datasheet

MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.7
MCF51AC256 Family Configurations
Freescale Semiconductor14
Figure 4. MCF51AC256 Series ColdFire Microcontroller 44-Pin LQFP
Table 4 shows the package pin assignments.
Table 4. Pin Availability by Package Pin-Count
Pin Number Lowest <-- Priority --> Highest
80 64 44 Port Pin Alt 1 Alt 2 Alt 3
1 1 1 PTC4 SS2
222 IRQ TPMCLK
1
3 3 3 RESET
4 4 4 PTF0 RGPIO8 FTM1CH2
5 5 5 PTF1 RGPIO9 FTM1CH3
6 6 — PTF2 RGPIO10 FTM1CH4
7 7 — PTF3 RGPIO11 FTM1CH5
PTF4/RGPIO12/FTM2CH0
1
2
3
4
5
6
7
8
RESET
PTF0/RGPIO8/FTM1CH2
PTG2/KBI1P2 PTG1/KBI1P1 PTG0/KBI1P0
V
DD
V
SS
PTE7/RGPIO7/SPSCK1
PTE6/RGPIO6/MOSI1
PTD0/AD1P8/ACMP1+
PTD1/AD1P9/ACMP1-
V
DDA
V
SSA
PTB1/TPM3CH1/AD1P1
V
REFH
PTC5/RxD2
PTG5/XTAL
BKGD/MS
V
REFL
PTG3/KBI1P3/AD1P18
31
30
29
28
27
26
13
14
15 16 17
18
34
35
12
22
23
33
44
9
PTF5/RGPIO13/FTM2CH1
10
PTE0/RGPIO0/TxD1
11
PTE3/RGPIO3/FTM1CH1
•PTA0/TxCAN
19
•PTA1/RxCAN
20 21
PTB3/AD1P3
PTB2/AD1P2
PTG6/EXTAL
36
V
SS
37
PTC0/SCL1
38
PTC1/SDA1
39
PTF1/RGPIO9/FTM1CH3
PTE1/RGPIO1/RxD1
PTE2/RGPIO2/FTM1CH0
PTD2/KBI1P5/AD1P10/ACMP1O
32
PTD3/KBI1P6/AD1P11
PTC3/TxD2
43 42 41
PTC2/MCLK
40
PTC4
IRQ/TPMCLK
PTE4/RGPIO4/SS1
PTE5/RGPIO5/MISO1
PTB0/TPM3CH0/AD1P0
44-Pin LQFP
25
24
• TxCAN and RxCAN are not available in the
members that do not support CAN