DS2705 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS2705 Datasheet PDF : 18 Pages
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DS2705: SHA-1 Authentication Master
AC ELECTRICAL CHARACTERISTICS: MASTER 1-Wire INTERFACE
(2.5V £ VDD £ 5.5V, TA = -20°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
STANDARD BUS TIMING
Time Slot
tMSLOT
(Note 10)
90
ms
Recovery Time
tMREC
(Note 10)
7.5
10 12.5
ms
Write-0 Low Time
tMLOW0
(Note 10)
88.5
ms
Write-1 Low Time
tMLOW1
(Note 10)
1.05 1.5 2.25
ms
Read-Data Sample Window
tMRDV
(Note 10)
4.0
5.5
7.0
ms
Reset-Time Low
tMRSTL
(Note 10)
510 680 850
ms
Presence-Detect High
tMPDH
(Note 10)
2
75
ms
Presence-Detect Low
tMPDL
(Note 10)
2
400
ms
OVERDRIVE BUS TIMING
Time Slot
tMSLOT
(Note 10)
12
ms
Recovery Time
tMREC
(Note 10)
1
2
2.5
ms
Write-0 Low Time
tMLOW0
(Note 10)
10.5
ms
Write-1 Low Time
tMLOW1
(Note 10)
0.35 0.5 0.65
ms
Read-Data Sample Window
tMRDV
(Note 10)
1.1
1.5
1.9
ms
Reset-Time Low
tMRSTL
(Note 10)
53
70
88
ms
Presence-Detect High
tMPDH
(Note 10)
2
7
ms
Presence-Detect Low
tMPDL
(Note 10)
2
41
ms
3 of 18
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