
Self-Check Mode
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
Freescale Semiconductor
69
Figure 11-2. Self-Check Circuit Schematic
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
28
29
30
31
32
33
34
35
36
37
38
39
40
15
16
17
18
19
20
21
22
23
24
25
26
V
DD
4.7 k
RESET
IRQ
PA5
PA4
PA3
PA2
PA1
PA0
PB0
PA6
PB1
PB2
NC
PA7
PB3
PB4
PB5
PB6
PB7
V
SS
20 pF
10 M
4 MHZ
20 pF
PC0
V
DD
OSC1
OSC2
TCAP
PD7
TCMP
PD5/SS
PD4/SCK
PD3/MOSI
PD2/MISO
PD1/TDO
PD0/RDI
PC1
PC2
PC3
PC4
PC5
PC6
PC7
V
DD
1 M
10 V
MC68H05C8A
MC34064
V
DD
V
DD
CMOS
BUFFER
(MC74HC125)
330
330
330
330
Notes:
2. TCMP = NC
V
DD
10 k
1. VDD = 5.0 V