MC68HC705C8A Datasheet, PDF (105/222 Pages) Motorola, Inc – HCMOS Microcontroller Unit

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
(PROG)
N
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
16 ^PB2
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
PC0
31
30
PC1
29
PC2
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
V_SS
20
Figure 9-2. PROM Programming Circuit (Continued)
MC68HC705C8A — Rev. 2.0
MOTOROLA
EPROM/OTPROM (PROM)
Technical Data
105