Datasheet

General Description
MC68HC908QB8 Data Sheet, Rev. 3
20 Freescale Semiconductor
1.4 Pin Assignments
The MC68HC908QB8, MC68HC908QB4, and MC68HC908QY8 are available in 16-pin packages.
Figure 1-2 shows the pin assignment for these packages.
Figure 1-2. MCU Pin Assignments
1.5 Pin Functions
Table 1-2 provides a description of the pin functions.
1
2
3
4
5
6
7
8
PTB0
PTB2
PTB3
PTB4
PTB6
PTB7
PTB1
16-PIN ASSIGNMENT
MC68HC908QY8 PDIP/SOIC
V
DD
PTA1/TCH1/AD1/KBI1
PTB5
PTA2/IRQ
/KBI2/TCLK
PTA0/TCH0/AD0/KBI0
PTA5/OSC1/AD3/KBI5
PTA4/OSC2/AD2/KBI4
PTA3/RST
/KBI3
16
15
14
13
12
11
10
9
V
SS
1
2
3
4
5
6
7
8
PTB0/SCK/AD4
PTB2/MISO/AD6
PTB3/SS
/AD7
PTB4/Rx/AD8
PTB6/TCH2
PTB7/TCH3
PTB1/MOSI/AD5
16-PIN ASSIGNMENT
MC68HC908QB8/MC68HC908QB4 PDIP/SOIC
V
DD
PTA1/TCH1/AD1/KBI1
PTB5/Tx/AD9
PTA2/IRQ
/KBI2/TCLK
PTA0/TCH0/AD0/KBI0
PTA5/OSC1/AD3/KBI5
PTA4/OSC2/AD2/KBI4
PTA3/RST
/KBI3
16
15
14
13
12
11
10
9
V
SS
PTB2
PTB4
PTB5
PTB6
PTB0
PTB1
PTB3
16-PIN ASSIGNMENT
MC68HC908QY8 TSSOP
PTA0/TCH0/AD0/KBI0
PTA3/RST
/KBI3
PTB7
PTA4/OSC2/AD2/KBI4
PTA2/IRQ
/KBI2/TCLK
V
SS
V
DD
PTA5/OSC1/AD3/KBI5
PTA1/TCH1/AD1/KBI1
PTB2/MISO/AD6
PTB4//Rx/AD8
PTB5/Tx/AD9
PTB6/TCH2
PTB0/SCK/AD4
PTB1/MOSI/AD5
PTB3/SS
/AD7
16-PIN ASSIGNMENT
MC68HC908QB8/MC68HC908QB4 TSSOP
PTA0/TCH0/AD0/KBI0
PTA3/RST
/KBI3
PTB7/TCH3
PTA4/OSC2/AD2/KBI4
PTA2/IRQ
/KBI2/TCLK
V
SS
V
DD
PTA5/OSC1/AD3/KBI5
PTA1/TCH1/AD1/KBI1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9