DS1809U-050 Maxim Integrated Products, DS1809U-050 Datasheet - Page 5

• Manufacturer Part Number: DS1809U-050
• Description: IC DALLASTAT 50K 118MIL 8-USOP
• Manufacturer: Maxim Integrated Products
• Series: Dallastat™r

Specifications of DS1809U-050

• Taps: 64
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 750 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: Contact Closure
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DS1809
PUSHBUTTON TIMING DIAGRAMS Figure 4
If during any pushbutton activity the STR input is activated, pushbutton operation will be suspended until
the storage of EEPROM has been completed. Once complete, pushbutton inputs, if still active, will
resume from the point of suspension. Command initiated storage operations will require a minimum of
4 ms to complete the storage operation. This 4 ms is measured from the rise of STR input (see Figure 5).
For applications not requiring or using the nonvolatile memory feature of the DS1809, it is recommended
that the STR input be connected to GND.
COMMAND INITIATED WIPER STORAGE - Figure 5
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