MC68HC05B4 Datasheet, PDF (31/298 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

RESET
10 kΩ
9600 Bd
RS232
18 _RESET
0.01 µF
6 _NC
15 _NC
RS232 level translator ⁵⁰ _RDI
suggested:
MC145406 or MAX232
52
TDO
Connect as required
for the application
24
25
26
27
28
29
30
31
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
32
33
34
35
36
37
38
39
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
42
43
44
45
46
47
48
49
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
10
VDD
10 nF
OSC1 ¹⁶
OSC2 ¹⁷
22 pF
IRQ ¹⁹
PD3 ¹¹
PD4 ⁹
TCAP1 ²²
VRH ⁸
VRL ⁷
VPP1 ⁴⁰
PLMA ²⁰
PLMB ²¹
SCLK ⁵¹
VSS
41
TCMP2 ¹
TCAP2 ²³
TCMP1 ²
PD7
PD6
PD5
PD2
PD1
PD0
3
4
5
12
13
14
47 µF
10 MΩ
4 MHz ^{22 pF}
10 kΩ
Connect as required
for the application
P1
GND
+5V
2xV_DD
2
Figure 2-1 MC68HC05B6 ‘load program in RAM and execute’ schematic diagram
MC68HC05B6
Rev. 4
MODES OF OPERATION AND PIN DESCRIPTIONS
TPG
MOTOROLA
2-3