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コンポーネント説明
ADC0803 データシートの表示(PDF) - Renesas Electronics
部品番号
コンポーネント説明
メーカー
ADC0803
8-Bit, Microprocessor-Compatible, A/D Converters
Renesas Electronics
ADC0803 Datasheet PDF : 17 Pages
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ADC0803, ADC0804
RD
RD
2
IORQ
ADC0803-
ADC0804
WR
WR
3
74C32
FIGURE 22. MAPPING THE A/D AS AN
I/O DEVICE FOR USE
WITH THE Z-80 CPU
IRQ (4)
†
[D]
††
ANALOG
INPUTS
150pF
10K
ADC0803 - ADC0804
1 CS
V+ 20
2 RD
3 WR
CLK R 19
DB
0
18
LSB
4 CLK IN DB
1
17
5 INTR
6 V
IN
(+)
7 V
IN
(-)
8 AGND
9 V
REF
/2
10 DGND
DB
2
16
DB
3
15
DB
4
14
DB
5
13
DB
6
12
DB
7
11
MSB
1
2
6
3
1
/
2
DM8092
4
5
R/W (34) [6]
+
10
F
ABC
5V (8) 1 2 3
D
0
(33) [31]
D
1
(32) [29]
D
2
(31) [K]
D
3
(30) [H]
D
4
(29) [32]
D
5
(28) [30]
D
6
(27) [L]
D
7
(26) [J]
A
12
(22) [34]
A
13
(23) [N]
A
14
(24) [M]
A
15
(25) [33]
VMA (5) [F]
†
††
Numbers in parentheses refer
Numbers or letters in brackets
to MC6800 CPU Pinout.
refer to standard MC6800
System
Common
Bus
Code.
FIGURE 23. ADC080X TO MC6800 CPU INTERFACE
ANALOG
INPUTS
150pF
18
CB
1
19
CB
2
10K
ADC0803 - ADC0804
1 CS
V+ 20
5V
2 RD CLK R 19
3 WR
DB
0
18
LSB
10
4 CLK IN DB
1
17
11
5 INTR
DB
2
16
12
6 V
IN
(+) DB
3
15
13
7 V
IN
(-) DB
4
14
14
8 AGND DB
5
13
15
9 V
REF
/2 DB
6
12
16
10 DGND
DB
7
11
MSB
17
MC6820
(MCS6520)
PIA
PB
0
PB
1
PB
2
PB
3
PB
4
PB
5
PB
6
PB
7
FIGURE 24. ADC080X TO MC6820 PIA INTERFACE
FN3094 Rev 4.00
August 2002
Page 15 of 17
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