MC68HC05B6_13 Datasheet, PDF (235/302 Pages) Freescale Semiconductor, Inc – Microcontrollers

100kΩ
1N914
RESET
1kΩ
RUN
1N914
1.0µF
+
0.01µF
Red LED
470Ω
470Ω
Green LED
Erase check
Green LED — EPROM erased
Red LED — EPROM not erased
Serial boot
Flashing green LED — programming
Green LED — programming ended
Serial RAM
load & execute
9600 BD
8-bit
no parity
8
5
RS232 ⁷
Connector ³
2
1
22µF
+
+5V
2 x 3KΩ
16
1
2
3
22µF
+
6
MAX
4
232 ⁵
13
12
14
11
15
+22_µF
+22_µF
10nF
22
8 10
TCAP1 VRH VDD
19 _IRQ
18 RESET OSC1
+
47µF
P1 1
2
3
GND
+5V
V_PP
47µF ₊
20 _PLMA
21 _PLMB
OSC2
22pF
4.0 MHz
22pF
PD3
RAM load
& execute
Jump to $51
MC68HC705B16N
MCU (socket)
PD4
Serial boot
1 kΩ
39 _PB0
38 _PB1
37 _PB2
36 _PB3
35 _PB4
34 _PB5
33 _PB6
32 _PB7
VPP6
PC7
4k7Ω
4k7Ω
31
30
29
28
27
26
25
24
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
14
13
12
5
4
3
PD0
PD1
PD2
PD5
PD6
PD7
50
52
RDI
TDO
VSS
PC6 ⁴³
PC5 ⁴⁴
PC4 ⁴⁵
PC3 ⁴⁶
PC2 ⁴⁷
PC1 ⁴⁸
PC0 ⁴⁹
VPP1
TCAP2
TCMP1
TCMP2
23
2
1
51
SCLK
VRL ^NC
40
41
7
10k Ω
12 kΩ
BC239C
1nF ⁺
Note:
A minimum V_DD voltage must be applied to the VPP6 pin at all times,
including power-on, as a lower voltage could damage the device. Unless
otherwise stated, EPROM programming is guaranteed at ambient (25°C)
temperature only
Figure F-8 RAM load and execute schematic diagram
14
MC68HC05B6
Rev. 4.1
MC68HC705B16N
Freescale
F-17