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MC908QT4MPE Datasheet(PDF) 140 Page - Freescale Semiconductor, Inc

Part # MC908QT4MPE
Description  Microcontrollers
PDF  184 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC908QT4MPE Datasheet(HTML) 140 Page - Freescale Semiconductor, Inc

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Development Support
MC68HC908QY/QT Family Data Sheet, Rev. 5
140
Freescale Semiconductor
Figure 15-10. Monitor Mode Circuit (External Clock, with High Voltage)
Figure 15-11. Monitor Mode Circuit (External Clock, No High Voltage)
9.8304 MHz CLOCK
+
10 k
Ω*
VDD
10 k
Ω*
RST (PTA3)
IRQ (PTA2)
PTA0
OSC1 (PTA5)
8
7
DB9
2
3
5
16
15
2
6
10
9
VDD
MAX232
V+
V–
1
µF
+
1
2
3
4
5
6
74HC125
74HC125
10 k
Ω
PTA1
PTA4
VSS
0.1
µF
VDD
1 k
Ω
9.1 V
C1+
C1–
5
4
1
µF
C2+
C2–
+
3
1
1
µF
+
1
µF
VDD
+
1
µF
VTST
* Value not critical
VDD
VDD
10 k
Ω*
RST (PTA3)
IRQ (PTA2)
PTA0
OSC1 (PTA5)
8
7
DB9
2
3
5
16
15
2
6
10
9
VDD
1
µF
MAX232
V+
V–
VDD
1
µF
+
1
2
3
4
5
6
74HC125
74HC125
10 k
Ω
N.C.
PTA1
N.C.
PTA4
VSS
0.1
µF
VDD
9.8304 MHz CLOCK
C1+
C1–
5
4
1
µF
C2+
C2–
+
3
1
1
µF
+
+
+
1
µF
VDD
10 k
Ω*
* Value not critical
N.C.



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