DS1994L-F5 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1994L-F5 Datasheet PDF : 22 Pages
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DS1994
Figure 10. INITIALIZATION PROCEDURE RESET AND PRESENCE PULSES
VPULLUP
VPULLUP MIN
VIH MIN
MASTER TX
"RESET PULSE"
MASTER RX "PRESENCE PULSE"
tRSTH
VIL MAX
0V
RESISTOR
MASTER
DS1994
tRSTL
tR
tPDH
480µs £ tRSTL < ¥*
480µs £ tRSTH < ¥**
15µs £ tPDH < 60µs
60 £ tPDL < 240µs
tPDL
* In order not to mask interrup signaling
by other devices on the 1-Wire bus, tRSTL
+ tR should always be less than 960 us.
** Includes recovery time
Figure 11. READ/WRITE TIMING DIAGRAM
Write-One Time Slot
VPULLUP
VPULLUP MIN
VIH MIN
VIL MAX
0V
RESISTOR
MASTER
tSLOT
DS1994
Sampling Window
tLOW1
15µs
60µs
60µs £ tSLOT < 120µs
1µs £ tLOW1 < 15µs
1µs £ tREC < ¥
tREC
17 of 22
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