MAX5820 データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX5820 Datasheet PDF : 13 Pages
| |||
Dual, 8-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
Table 3. Command Byte Definitions
SERIAL DATA INPUT
C3 C2 C1 C0
D7
D6
D5
0
0
0
0
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DAC
DAC
0
0
0
1
DATA DATA DATA
0
1
0
0
DAC
DATA
DAC
DATA
DAC
DATA
0
1
0
1
DAC
DATA
DAC
DATA
DAC
DATA
1
0
0
0
DAC
DATA
DAC
DATA
DAC
DATA
1
0
0
1
DAC
DATA
DAC
DATA
DAC
DATA
1
1
0
0
DAC
DATA
DAC
DATA
DAC
DATA
1
1
0
1
DAC
DATA
DAC
DATA
DAC
DATA
1
1
1
0
X
X
X
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
1
D4
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DATA
DAC
DATA
X
0
1
0
FUNCTION
Load DAC A input and DAC registers with new data.
Contents of DAC B input registers are transferred to the
DAC register. All outputs are updated.
Load DAC B input and DAC registers with new data.
Contents of DAC A input registers are transferred to the
DAC register. All outputs are updated.
Load DAC A input register with new data. DAC outputs
remain unchanged.
Load DAC B input register with new data. DAC outputs
remain unchanged.
Data in all input registers is transferred to respective DAC
registers. All DAC outputs are updated simultaneously.
New data is loaded into DAC A input register.
Data in all input registers is transferred to respective DAC
registers. All DAC outputs are updated simultaneously.
New data is loaded into DAC B input register.
Load all DACs with new data and update all DAC outputs
simultaneously. Both input and DAC registers are updated
with new data.
Load all input registers with new data. DAC outputs
remain unchanged.
Update all DAC outputs simultaneously. Device ignores
D7–D4. Do not send the data byte.
Extended command mode. The next word writes to the
power-down registers (see the Extended Command Mode
section).
Read DAC A data. The device expects an Sr condition
followed by an address word with R/W = 1.
Read DAC B data. The device expects an Sr condition
followed by an address word with R/W = 1.
______________________________________________________________________________________ 11
Share Link: 