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ADC0803 Datasheet(PDF) 15 Page - Intersil Corporation

Part # ADC0803
Description  8-Bit, Microprocessor-Compatible, A/D Converters
PDF  17 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ADC0803 Datasheet(HTML) 15 Page - Intersil Corporation

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15
FIGURE 22. MAPPING THE A/D AS AN
I/O DEVICE FOR USE
WITH THE Z-80 CPU
FIGURE 23. ADC080X TO MC6800 CPU INTERFACE
FIGURE 24. ADC080X TO MC6820 PIA INTERFACE
WR
RD
IORQ
RD
WR
74C32
ADC0803-
ADC0804
3
2
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
ADC0803 - ADC0804
WR
RD
CS
INTR
CLK IN
VIN (-)
VIN (+)
DGND
VREF/2
AGND
DB1
DB0
DB4
DB3
DB2
DB7
DB6
DB5
CLK R
V+
10K
5V (8)
10
µF
+
ANALOG
INPUTS
150pF
MSB
LSB
D1 (32) [29]
D0 (33) [31]
D4 (29) [32]
D3 (30) [H]
D2 (31) [K]
D7 (26) [J]
D6 (27) [L]
D5 (28) [30]
A12 (22) [34]
A13 (23) [N]
A14 (24) [M]
A15 (25) [33]
VMA (5) [F]
IRQ (4)
† [D]††
R/W (34) [6]
1
2
3
4
5
6
1/2 DM8092
A B C
1 2 3
† Numbers in parentheses refer to MC6800 CPU Pinout.
†† Numbers or letters in brackets refer to standard MC6800 System Common Bus Code.
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
ADC0803 - ADC0804
WR
RD
CS
INTR
CLK IN
VIN (-)
VIN (+)
DGND
VREF/2
AGND
DB1
DB0
DB4
DB3
DB2
DB7
DB6
DB5
CLK R
V+
10K
5V
ANALOG
INPUTS
150pF
MSB
LSB
11
10
14
13
12
17
16
15
PB1
PB0
PB4
PB3
PB2
PB7
PB6
PB5
MC6820
(MCS6520)
PIA
CB2
CB1
19
18
ADC0803, ADC0804



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