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DS1620 Datasheet

  • DS1620

  • Digital Thermometer and Thermostat

  • 539.86KB

  • Dallas   Dallas

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DS1620
Digital Thermometer and Thermostat
www.dalsemi.com
FEATURES
搂
搂
搂
搂
搂
搂
搂
搂
Requires no external components
Supply voltage range covers from 2.7V to
5.5V
Measures temperatures from -55掳C to +125掳C
in 0.5掳C increments; Fahrenheit equivalent is
-67掳F to +257掳F in 0.9掳F increments
Temperature is read as a 9-bit value
Converts temperature to digital word in 1
second (max)
Thermostatic settings are user-definable and
nonvolatile
Data is read from/written via a 3-wire serial
interface (CLK, DQ,
RST
)
Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system
8-pin DIP or SOIC (208-mil) packages
PIN ASSIGNMENT
DQ
CLK/CONV
RST
GND
1
2
3
4
8
7
6
5
V
DD
T
HIGH
T
LOW
T
COM
DS1620S 8-Pin SOIC (208-miil)
See Mech Drawings Section
DQ
CLK/CONV
RST
GND
1
2
3
4
8
7
6
5
V
DD
T
HIGH
T
LOW
T
COM
搂
DS1620 8-Pin DIP (300-mil)
See Mech Drawings Section
PIN DESCRIPTION
DQ
CLK/
CONV
RST
GND
T
HIGH
T
LOW
T
COM
V
DD
- 3-Wire Input/Output
- 3-Wire Clock Input and
Stand-alone Convert Input
- 3-Wire Reset Input
- Ground
- High Temperature Trigger
- Low Temperature Trigger
- High/Low Combination Trigger
- Power Supply Voltage (3V - 5V)
DESCRIPTION
The DS1620 Digital Thermometer and Thermostat provides 9鈥揵it temperature readings which indicate
the temperature of the device. With three thermal alarm outputs, the DS1620 can also act as a thermostat.
T
HIGH
is driven high if the DS1620鈥檚 temperature is greater than or equal to a user鈥揹efined temperature
TH. T
LOW
is driven high if the DS1620鈥檚 temperature is less than or equal to a user鈥揹efined temperature
TL. T
COM
is driven high when the temperature exceeds TH and stays high until the temperature falls
below that of TL.
1 of 13
072099

DS1620 产品属性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 50

  • 集成电路 (IC)

  • PMIC - 热管理

  • -

  • 温度计，恒温计

  • 内部

  • -55°C ~ 125°C

  • ±2°C（最小值）

  • 比较器，寄存器库

  • 数字

  • 是

  • 无

  • 2.7 V ~ 5.5 V

  • -55°C ~ 125°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

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