參數(shù)資料
型號： AN8725FH
廠商： PANASONIC CORP
元件分類： 其它接口
英文描述： Semiconductor laser power control IC
中文描述： SPECIALTY INTERFACE CIRCUIT, PQFP80
封裝： 12 X 12 MM, PLASTIC, QFP-80
文件頁數(shù)： 30/36頁
文件大?。?/td> 197K
代理商： AN8725FH
AN8725FH
ICs for Optical Disk Drive
30
I
Application Notes (continued)
3. I/O specifications
Parallel interface
1) I/O level is CMOS.
2) Transfers a digital signal to DAC and each mode setting register with 4 addresses, 8 data and 2 control signals.
Address signal
AD0 to AD3
Data signal
DT0 to DT7
Control signal
XWR, XRD
3) Write can be done at the rise of XWR.
However, selection of a write register can be done at the fall of XWR.
DAC and register data are stored at D-FF.
4) Read appears on DT0 to DT7 at XRD
=
low.
5) Refer to "
I
Application Notes, 2. Timing chart" for the timing chart.
6) Each signal line is pulled up and down as below:
Pull-down to GND with 100 k
AD0 to AD3
DT0 to DT7
Pull-up to V
CC
with 100 k
XWR
WRD
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