參數(shù)資料
型號(hào)： AK9813AF
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： Aluminum Snap-In Capacitor; Capacitance: 1200uF; Voltage: 160V; Case Size: 25x45 mm; Packaging: Bulk
中文描述： 12通道8位的D / A轉(zhuǎn)換器帶有EEPROM
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 232K
代理商： AK9813AF
ASAHI KASEI
[AK9813A]
DAD03E-00
1999/05
- 3 -
y
Pin Description(1)
No.
20
Pin Name
I/O
I
Function
DI
Serial Data Input Pin
SEL=High : 16bit data input format
SEL=Low : 14bit data input format
(SEL=High:CS I/F)
AK9813A reads out the data with LSB first in the 16bit
shift register to DO pin synchronously with falling
edge of CLK.
When the CS pin is high level, the DO pin becomes high
impedance. In STATUS mode, the DO pin outputs Ready/Busy
status.
(SEL=Low:LD I/F)
AK9813A reads out the data with MSB first in the 14bit
shift register to DO pin synchronously with falling
edge of CLK.
In WRITE mode, the DO pin outputs Ready/Busy status.
Shift Clock Input Pin(Schmitt-trigger input)
AK9813A takes in the data from DI pin synchronously with
rising edge of the CLK pin. The data are transferred to
the internal shift register.
Chip Select Input Pin(Schmitt-trigger input)
The CS/LD is internally pulled up to VCC.
(SEL=High:CS I/F)
After the CS pin changes from high level to low level
while the CLK pin is high level, the AK9813A can input
the data to the internal shift register and takes in
the data from the DI pin synchronously with the rising
edge of the CLK pin.
After the CS pin changes from high level to low level
while the CLK pin is low level, the AK9813A becomes the
status mode and reads out the Ready/Busy status to the
DO pin.
When the CS pin changes from low level to high level
regardless of Low/High level of the CLK pin, the AK9813A
removes from the status mode to the normal mode. The CS
pin usually should be kept at high level.
(SEL=Low:LD I/F)
When the LD pin receives high pulse, the data of the
internal shift register is transferred to the internal
decoder or the register for D/A. The LD pin usually
should be kept at low level.
17
DO
O
19
CLK
I
18
CS/LD
I
相關(guān)PDF資料
PDF描述
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