MC68HC08BD24 Datasheet, PDF (107/244 Pages) Motorola, Inc – HCMOS Microcontroller Unit

V_DD
10 kΩ
0.1 µF
V_TST
10 Ω
68HC08
RST
IRQ
1
+
10 µF
3
4
10 µF ₊
2
DB-25
2
5
3
6
MC145407
20
+
10 µF
18
17
19
+ ^{10 µF VDD}
20 pF
16
15
X1
9.83 MHz
20 pF
7
NOTES:
Position A — Bus clock = OSCXCLK ÷ 4
Position B — Bus clock = OSCXCLK ÷ 2
V_DD
1 _MC74HC125 14
2
3
6
5
4
V_DD
7
10 kΩ
A
(See
NOTES)
B
10 MΩ
V_DD
0.1 µF
V_DD
10 kΩ
V_DD
10 kΩ
Figure 9-1. Monitor Mode Circuit
OSC1
OSC2
V_SS
V_SS1
V_DD
PTA0
PTC3
PTC0
PTC1
MC68HC08BD24 — Rev. 1.1
Freescale Semiconductor
Technical Data
107