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参数资料
| 型号： | DS1920-F5+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 20/22页 |
| 文件大小： | 0K |
| 描述： | IBUTTON TEMPERATURE F5 |
| 产品培训模块： | Obsolescence Mitigation Program |
| RoHS指令信息： | IButton RoHS Compliance Plan |
| 标准包装： | 25 |
| 系列： | iButton® |
| 存储容量： | 2B |
| 存储器类型： | EEPROM |
DS1920
AC ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE
(V PUP = 2.8V to 6.0V, T A = -55°C to +100°C.)
PARAMETER
Time Slot
Write 1 Low Time
Write 0 Low Time
SYMBOL
t SLOT
t LOW1
t LOW0
MIN
60
1
60
TYP
MAX
120
15
120
UNITS
μ s
μ s
μ s
NOTES
Read Data Valid
t RDV
exactly 15
μ s
Release Time
Read Data Setup
Recovery Time
Reset Time High
t RELEASE
t SU
t REC
t RSTH
0
1
480
15
45
1
μ s
μ s
μ s
μ s
8
Reset Time Low
Presence Detect High
Presence Detect Low
t RSTL
t PDHIGH
t PDLOW
480
15
60
4800
60
240
μ s
μ s
μ s
6, 7
NOTES:
1. Temperature conversion will work with ±2°C accuracy down to V PUP = 3.4V.
2. All voltages are referenced to ground.
3. I DD specified with low-impedance pullup to 5.0V.
4. Active current refers to temperature conversion.
5. Writing to EEPROM consumes approximately 200 μ A.
6. t RSTL may be up to 4800 μ s. With longer times, the result of temperature conversion may get lost.
7. The reset low time should be restricted to a maximum of 960 μ s, to allow interrupt signaling,
otherwise it could mask or conceal interrupt pulses.
8. Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1 μ s of this falling edge and will remain valid for 14 μ s minimum (15 μ s
total from falling edge on 1-Wire bus).
9. Capacitance on the data contact could be 800pF when power is first applied. If a 5k ? resistor is used
to pull up the data line to V CC , 5 μ s after power has been applied, the parasite capacitance will not
affect normal communications.
10. Under certain low-voltage conditions, V ILMAX may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
11. See the Typical Performance Curve for specification limits outside the 0°C to +70°C range.
Thermometer error reflects sensor accuracy as tested during calibration.
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相关PDF资料 |
PDF描述 |
|---|---|
| DS1921G-F5# | IBUTTON THERMOCHRON F5 |
| DS1921H-F5# | IBUTTON THERMOCHRON F5 |
| DS1921K# | KIT IBUTTON THERMOCHRON |
| DS1922E-F5# | IBUTTON TEMP LOGGER 4KBit F5 |
| DS1922L-F5# | IBUTTON TEMP LOGGER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1920-F5+ | 功能描述:iButton Temperature iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated |
| DS1921 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Resolution Thermochron iButton |
| DS1921G | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Thermochron iButton |
| DS1921G_11 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Logs Up to 2048 Consecutive Temperature Thermochron iButton |
| DS1921G_1109 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Thermochron iButton |
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