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MC68HC705C8A_13 Datasheet, PDF (107/222 Pages) Freescale Semiconductor, Inc – Technical Data
Freescale Semiconductor, Inc.
EPROM/OTPROM (PROM)
EPROM/OTPROM (PROM) Programming
A
B
C
R5
10 M
Y1
C4
22 pF
D
E
F
G
H
I
J
K
L
+5 V
R10*
470
DS2*
2.0 MHz
C3
22 pF
VERF
R9 R8 R7 R6
10 K 10 K 10 K 10 K
(VERF)
M
N (PROG)
PROG
DS1*
R11*
470
+5 V
(A5)
(A4)
(A3)
(A2)
(A1)
(A0)
(D0)
(D1)
(D2)
(D3)
(D4)
7
PA5
8
9 PA4
PA3
10
PA2
11 PA1
12
PA0
13
PB0
14 PB1
15
PB2
16
PB3
17
PB4
O
NC
P
Q
R
S
R3 10 K
+5 V
+5 V
R13
10 K
J1
321
R2
NC
10 K
R1
2.7 K
C2
1.0 µF
S2
NC
NC
+12 V NC
NC
NC
OUT
R4
10 K
+5 V
+5 V
RESET
IRQ
1
3
38
39
40
P2
2
+5 V
NC
U3
44-LEAD PLCC
SOCKET
NC
S3
S4
S5
S6
+5 V
12
J2
NC
C6
0.1 µF
39
PD7
38
TCMP
37
PD5 36
PD4 35
PD3
34
PD2
33
PD1
32
PD0
31
PC0 30
PC1
PC2 29
PD5
PD4
PD3
PD2
PD1
PD0
(A8)
(A9)
(A10)
PD5
34
PD4
33
PD3
32
PD2
31
PD7
36
R12
10 K
TCAP
37
TCMP
35
PB0
12
PB1
13
PB2
14
PB3
15
PB4
16
PB5
17
PB6
18
PB7
19
PA0
11
PA1
10
PA2
9
PA3
8
PA4
7
PA5
6
PA6
5
PA7
4
PC0
28
PC1
27
PC2
26
PC3
25
PC4
24
PD1
30
PD0
29
PC5
23
PC6
22
PC7
21
VSS
20
Figure 9-2. PROM Programming Circuit (Continued)
MC68HC705C8A — Rev. 3
MOTOROLA
EPROM/OTPROM (PROM)
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Technical Data