DS1869S-50+ Maxim Integrated Products, DS1869S-50+ Datasheet - Page 3

• Manufacturer Part Number: DS1869S-50+
• Description: IC RHEOSTAT DALLAST 3V 50K 8SOIC
• Manufacturer: Maxim Integrated Products
• Series: Dallastat™r

Specifications of DS1869S-50+

• Taps: 64
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 750 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: Contact Closure
• Voltage - Supply: ± 2.7 V ~ 8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Resistance In Ohms: 50K
• Number Of Pots: Single
• Taps Per Pot: 64
• Resistance: 50 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (3-Wire)
• Operating Supply Voltage: 2.7 V to 8 V
• Supply Current: 10 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: Dallastat Electronic Digital Rheostat
• Mounting Style: SMD/SMT
• Supply Voltage (max): 8 V
• Supply Voltage (min): 2.7 V
• Tolerance: 20 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS1869
In dual pushbutton mode, each direction is controlled by the up contact (UC) and down contact (DC)
inputs, respectively. No wait states are required to change wiper direction in dual pushbutton mode. In
dual pushbutton mode, as the wiper position reaches the end of the potentiometer, the direction of wiper
movement will not change. Wiper position will remain at the potentiometers’ end until an opposite
direction input is given.
All contact closure control inputs, UC, DC, and D, are internally pulled-up by a 100 k =resistance. The
UC and DC inputs are internally debounced and require no external components for input signal
conditioning.
DS1869 SINGLE PUSHBUTTON CONFIGURATION
(TYPICAL EXAMPLE) Figure 1
DS1869 DUAL PUSHBUTTON CONFIGURATION
(TYPICAL EXAMPLE) Figure 2A
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