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參數(shù)資料
| 型號(hào)： | DS1921H-F5 |
| 英文描述： | High-Resolution Thermochron iButton |
| 中文描述： | 高分辨率Thermochron iButton的 |
| 文件頁(yè)數(shù)： | 41/44頁(yè) |
| 文件大?。?/td> | 271K |
| 代理商： | DS1921H-F5 |
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DS1921H/Z
41 of 44
PARAMETER
IO pin, 1-Wire Reset, Presence Detect Cycle
Reset Low Time
SYMBOL
CONDITIONS
MIN
480
TYP
MAX UNITS NOTES
640
μs
Standard Speed,
V
PUP
> 4.5V
Standard Speed
Overdrive Speed
Standard Speed
Overdrive Speed
Standard Speed
Overdrive Speed
Standard Speed
Overdrive Speed
t
RSTL
540
48
15
1.1
60
7.5
60
6
60
6
5
1
5
1
t
RL
+
δ
t
RL
+
δ
-48
15
-5
75
640
80
60
6
270
24
75
8.6
120
15
15 -
ε
2 -
ε
15 -
δ
2 -
δ
15
2
+46
46
+26
360
1, 15
Presence Detect High
Time
Presence Detect Low
Time
Presence Detect
Sample Time
IO pin, 1-Wire Write
Write-0 Low Time
Write-1 Low Time
IO pin, 1-Wire Read
Read Low Time
Read Sample Time
Real-Time Clock
Frequency Deviation
Temperature Converter
Tempcore Operating
Range
Conversion Time
Thermal Response
Time Constant
Conversion Error
Number of
Conversions
t
PDH
t
PDL
t
MSP
μs
μs
μs
μs
μs
μs
μs
PPM
°C
ms
s
15
15
1, 16
1, 15
1, 11
1, 12
1, 12
13
t
W0L
t
W1L
Standard Speed
Overdrive Speed
Standard Speed
Overdrive Speed
t
RL
t
MSR
Standard Speed
Overdrive Speed
Standard Speed
Overdrive Speed
F
-5°C to +46°C
T
TC
t
CONV
τ
RESP
DS1921H
DS1921Z
130
N
CONV
-1
+1
°C
—
17, 18
14, 16
(see graphs)
NOTES
1) System Requirement.
2) Maximum allowable pull-up resistance is a function of the number of 1-Wire devices in the
system and 1-Wire recovery times. The specified value here applies to systems with only one
device and with the minimum 1-Wire recovery times. For more heavily loaded systems, an active
pull-up such as that found in the DS2480B may be required.
3) Capacitance on IO could be 800pF when power is first applied. If a 2.2k
resistor is used to pull
up the data line, 2.5μs after V
PUP
has been applied the parasite capacitor will not affect normal
communication.
4) Input load is to ground.
5) All voltages are referenced to ground.
6) V
TL
, V
TH
are a function of the internal supply voltage.
7) Voltage below which, during a falling edge on IO, a logic 0 is detected.
8) The voltage on IO needs to be less or equal to V
ILMAX
whenever the master drives the line low.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1921H-F5# | 功能描述:iButton Thermochron High Res iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1921H-F5/A1C | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1921H-F5+A1C | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1921H-F50 | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
| DS1921K | 功能描述:存儲(chǔ)器 IC 開(kāi)發(fā)工具 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Reference Boards 工具用于評(píng)估:M24LR64-R 存儲(chǔ)容量:64 kbit 存儲(chǔ)類型:EEPROM 工作電源電壓:1.8 V to 5.5 V |
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