MC68HC05E6 데이터 시트보기 (PDF) - Freescale Semiconductor
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MC68HC05E6 Datasheet PDF : 140 Pages
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Freescale Semiconductor, Inc.
Modes of Operation and Pin Descriptions
Modes of operation
The bootloader uses two external latches to address the memory device
containing the code to be copied. Figure 2 shows a suggested EPROM
programming circuit.
10 Ω
VPP
1N4148 33 kΩ
VDD
4MHz
22 pF
10 MΩ
22 pF
VDD
100 kΩ
S4
100 nF
VDD
470 Ω RED
470 Ω GREEN
S1
S2
S3
PB4
IRQ/VPP
OSC1
OSC2
PB3
RESET
PC1
PB2
PA7
PC0
PA6
PA5
PA4
PC4
PA3
PC3
PA2
PA1
PC2
PA0
VDD
VSS
11
CLK
9
8
7
6
5
4
3
2
D7
D6
D5
D4
D3
D2
D1
D0
11
CLK
9
8
7
6
5
4
3
2
D7
D6
D5
D4
D3
D2
D1
D0
1
OE
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
12
13
14
15
16
17
18
19
1
OE
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
12
13
14
15
16
17
18
19
VDD
1
27
26
2
23
21
24
25
A14
A13
A12
A11
A10
A9
A8
VPP
3
4
5
6
7
8
9
10
A7
A6
A5
A4
A3
A2
A1
A0
20 CE
22 OE
19
18
17
16
15
13
12
11
D7
D6
D5
D4
D3
D2
D1
D0
VDD
Figure 2 EPROM programming circuit
NOTE: This mode must not be used in the user’s application.
3-pin
MC68HC05E6 — Rev. 1.0
Modes of Operation and Pin Descriptions
For More Information On This Product,
Go to: www.freescale.com
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