mc68hc908gr8b Freescale Semiconductor, Inc, mc68hc908gr8b Datasheet - Page 221

• Manufacturer Part Number: mc68hc908gr8b
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
2
3
5
2
3
5
1 F
1 F
1 F
1 F
DB9
DB9
+
+
+
+
7
8
7
8
1
3
4
5
1
3
4
5
C1+
C1–
C2+
C2–
C1+
C1–
C2+
C2–
MAX232
MAX232
GND
GND
V
V
V+
V–
V+
V–
CC
CC
16
15
2
10
16
15
2
10
6
6
9
9
Figure 18-10. Normal Monitor Mode Circuit
V
V
DD
DD
+
+
+
+
Figure 18-11. Forced Monitor Mode
1 F
1 F
1 F
1 F
2
2
MC68HC908GR8B Data Sheet, Rev. 3.0
74HC125
74HC125
1
1
+
+
3
3
1 F
1 F
74HC125
74HC125
6
6
4
4
5
5
33 pF
33 pF
33 pF
33 pF
V
V
DD
DD
10 k
10 k
9.8304 MHz
9.8304 MHz
1 k
8.5 V
N.C.
N.C.
N.C.
10 M
10 M
RST
OSC2
OSC1
IRQ
PTA0
RST
OSC2
OSC1
IRQ
PTA0
MC68HC908GR8B
MC68HC908GR8B
Monitor Module (MON)
PTB0
PTB1
PTA1
PTB0
PTB1
PTA1
V
V
V
V
V
V
V
V
DDA
DDA
SSA
SSA
DD
DD
SS
SS
10 k
10 k
10 k
10 k
V
V
DD
DD
N.C.
N.C.
0.1 F
0.1 F
V
DD
221