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MP7641 Datasheet(PDF) 11 Page - Exar Corporation

Part No. MP7641
Description  8-Channel Voltage Output 10 MHz Input Bandwidth 8-Bit Multiplying DACs with Serial Digital Port
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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MP7641 Datasheet(HTML) 11 Page - Exar Corporation

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MP7641
11
Rev. 2.00
Figure 6. 8085 Interface (Simplified Diagram)
ALE
WR
SOD
8085
8
8
DATA BUS
+5
8212
A0 to A2
ADDRESS
DECODER
74LS138
E1
E3
E2
SDI
CLK
LD
RST
FROM SYSTEM RESET
8
ADDRESS BUS
NOTES:
1.
Clock generated by WR and decoding address 8000
2.
Data is clocked into the DAC shift register by executing memory write instructions. the clock input is
generated by decoding address 8000 and WR. Data is then loaded into the DAC register with a memory
write instruction to address 4000.
3.
Serial data must be present in the right justified format in registers H & L of the microprocessor.
3
MP7641


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