ADC0809 National Semiconductor Corporation, ADC0809 Datasheet - Page 13
ADC0809
Manufacturer Part Number
ADC0809
Description
8-bit Microprocessor Compatible A/d Converters With 8-channel Multiplexer
Manufacturer
National Semiconductor Corporation
Datasheet
1.ADC0809.pdf
(16 pages)
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Typical Application
*Address latches needed for 8085 and SC/MP interfacing the ADC0808 to a microprocessor
8080
8085
Z-80
SC/MP
6800
PROCESSOR
MEMR
RD
RD
NRDS
VMA•φ2•R/W
TABLE 2. Microprocessor Interface Table
READ
MEMW
WR
WR
NWDS
VMA•φ•R/W
WRITE
13
INTR (Thru RST Circuit)
INTR (Thru RST Circuit)
INT (Thru RST Circuit, Mode 0)
SA (Thru Sense A)
IRQA or IRQB (Thru PIA)
INTERRUPT (COMMENT)
567210
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