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參數(shù)資料
| 型號(hào)： | MP7612BS |
| 廠商： | MICRO POWER SYSTEMS |
| 元件分類： | DAC |
| 英文描述： | Octal 12-Bit DAC Array D/A Converter with Output Amplifier and Serial Data/Address uP Control Logic |
| 中文描述： | SERIAL INPUT LOADING, 30 us SETTLING TIME, 12-BIT DAC, PDSO28 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 231K |
| 代理商： | MP7612BS |
MP7612
11
Rev. 3.00
A0 to A15
02
R/W
DBO to DB7
MC6800
8
16
E1
E3
E2
A0 to A2
74LS138
Address
Decoder
3
16
8
SDI
DB7
RST
LD
CLK
Data Bus
Address Bus
From SYSTEM RESET
NOTES
1.
Execute consecutive memory write instructions while manipulating the data between WRITEs so that each
WRITE presents the next bit.
The serial data loading is triggered by the CLK pulse which is asserted by a decoded memory WRITE to
memory location 2000, R/W, and 02. A WRITE to address 4000 transfers data from input shift register to DAC
register.
2.
Figure 7. MC6800 Interface
Figure 8. 8085 Interface
ALE
WR
SOD
8085
8212
8
8
8
Address Bus
Data Bus
+5
E1
E3
E2
A0 to A2
3
74LS138
Address
Decoder
SDI
LD
RST
CLK
From SYSTEM RESET
NOTES:
1.
2.
Clock generated by WR and decoding address 8000.
Data is clocked in 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.
Serial data must be present in the right justified format in registers H & L of the microprocessor.
3.
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| MP7613 | 制造商:EXAR 制造商全稱:EXAR 功能描述:Octal 12-Bit DAC Array D/A Converter with Output Amplifier and Parallel Data/Address mP Control Logic |
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