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DS1963S Datasheet(PDF) 35 Page - Dallas Semiconductor

Part # DS1963S
Description  SHA iButton
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1963S Datasheet(HTML) 35 Page - Dallas Semiconductor

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DS1963S
35 of 37
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS NOTES
Timeslot Duration
tSLOT
Standard Speed
69
µs
1, 15
Standard Speed,
-20°C to +85°C
65
Overdrive Speed,
VPUP > 4.5V
8
IO Pin, 1-Wire Reset, Presence Detect Cycle
Reset Low Time
tRSTL
Standard Speed
540
960
µs
1, 14
Standard Speed,
-20°C to +85°C
480
960
Overdrive Speed,
VPUP > 4.5V
48
80
Presence Detect High
tPDH
Standard Speed
17
60
µs
14
Time
Overdrive Speed,
VPUP > 4.5V
1.8
6
Presence Detect Low
tPDL
Standard Speed
78
260
µs
14
Standard Speed,
-20°C to +85°C
78
240
Time
Overdrive Speed,
VPUP > 4.5V
7.7
24
Presence Detect
tMSP
Standard Speed
60
95
µs
1
Sample Time
Overdrive Speed,
VPUP > 4.5V
6
9.5
IO Pin, 1-Wire Write
Write-0 Low Time
tW0L
Standard Speed
64
120
µs
1, 14
Standard Speed,
-20°C to +85°C
60
120
Overdrive Speed,
VPUP > 4.5V
6
15.4
Write-1 Low Time
tW1L
Standard Speed
5
15 -
e
µs
1, 11
Overdrive Speed
1
2 -
e
IO Pin, 1-Wire Read
Read Low Time
tRL
Standard Speed
5
15 -
d
µs
1, 12
Overdrive Speed
1
2 -
d
Read Sample Time
tMSR
Standard Speed
tRL +
d
15
µs
1, 12
Overdrive Speed
tRL +
d
2
SHA-1 Engine
Computation Time
tSHA
0.4
1.15
ms
Number of SHA-1
Computations
NSHA
(see graphs)
---
13



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