DS2408 Просмотр технического описания (PDF) - Maxim Integrated
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DS2408 Datasheet PDF : 36 Pages
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PARAMETER SYMBOL CONDITIONS
I/O Pin, 1-Wire Reset, Presence-Detect Cycle
Reset-Low Time
(Notes 1, 12)
tRSTL
Standard speed, VPUP >
4.5V
Standard speed
Overdrive speed
Presence-Detect High
Time (Note 12)
tPDH
Standard speed
Overdrive speed
Presence-Detect Fall
Time (Note 13)
Standard speed, VPUP >
tFPD
4.5V
Standard speed
Overdrive speed
Presence-Detect Low
Time (Note 12)
Standard speed, VPUP >
tPDL
4.5V
Standard speed
Overdrive speed
Standard speed, VPUP >
Presence-Detect
Sample Time (Note 1)
tMSP
4.5V
Standard speed
Overdrive speed
I/O Pin, 1-Wire Write
Write-0 Low Time
(Notes 1, 12)
tW0L
Standard speed
Overdrive speed
Write-1 Low Time
(Notes 1, 12, 14)
Standard speed
tW1L Overdrive speed
Write Sample Time
(Slave Sampling)
(Note 12)
Standard speed
tSLS Overdrive speed
I/O Pin, 1-Wire Read
Read-Low Time
(Notes 1, 15)
Standard speed
tRL Overdrive speed
Read-0 Low Time
Standard speed
(Data From Slave)
(Note 12)
tSPD Overdrive speed
Read-Sample Time
(Notes 1, 12, 15)
Standard speed
tMSR Overdrive speed
P0 to P7, RSTZ Pin
Input-Low Voltage
Input-High Voltage
VIL (Notes 1, 7)
VIH
VX = max (VPUP,VCC)
(Note 1)
Output-Low Voltage
at 4mA
VOL (Note 10)
Leakage Current
Output Fall Time
Minimum-Sensed
PIO Pulse
ILP
tFPIO
tPWMIN
5.25V at the pin
(Notes 4, 16)
(Notes 4, 17)
MIN
TYP
DS2408
MAX UNITS
480
720
660
720
µs
53
80
15
2
60
7
µs
1
5
1
8
µs
1
60
240
60
280
µs
7
27
65
75
68
75
µs
8
9
60
8
120
13
µs
5
1
15 - e
1.8 - e
µs
15
60
1.8
8
µs
5
1
15
1.8
tRL + d
tRL + d
VX - 0.8
100
1
15 - d
1.8 - d
µs
60
8
µs
15
µs
1.8
0.30
V
5.25
V
0.4
V
1
µA
ns
5
µs
3 of 36
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