MC68HC05X16
B-19
MC68HC705X32
15
Warning: A minimum VPP6R voltage must be applied to the VPP6 pin at all times, including
power-on. Failure to do so could result in permanent damage to the device. Unless
otherwise stated, EPROM programming is guaranteed at ambient temperature (25
°C)
only.
Figure B-6 EPROM parallel bootstrap schematic diagram
VCC
28
1
VPP
PGM
27
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
VDD
OSC1
OSC2
TCAP1
IRQ
RESET
VSS
A0
A1
A2
A3
A4
A5
A6
A7
D0
D1
D2
D3
D4
D5
D6
D7
GND
OE
14
22
10
9
8
7
6
5
4
26
12
13
15
16
17
18
19
11
3
+5V
1
2
P1
GND
+5V
100mF
22pF
4.0 MHz
1N914
1k
1.0mF
22pF
100k
1N914
RESET
RUN
0.01mF
TDO
SCLK
RDI
VRL
TCAP2
PD7
PD6
PD5
PD3
PD2
PD1
PD0
PD4
+5V
3
VPP
VPP6
PC7
PC5
PC4
PC3
PC2
PC1
PC0
PC6
24
21
23
2
A9
A8
A10
A12
CE
A11
A12
A11
A10
A9
A8
HDSK out
HDSK in
Short circuit if
handshake not used
100 k
NC
TCMP1
TCMP2
PLMA
PLMB
470
470
red LED
green LED
4k7
4k7
12 k
BC239C
BC309C
10k
27C256
+
VRH
red LED — programming failed
green LED — programming OK
25
1nF
1N5819
1 k
+
RAM
EPROM
green LED — EPROM erased
47mF
+
Erase check & boot
EPROM erase
check
VPP1
red LED — EPROM not erased
Boot
Erase check
A13
20
MC68HC705X32
MCU
A14
Verify
Program
EPROM
201
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com