DS1869 Dallas Semiconducotr, DS1869 Datasheet
DS1869
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DS1869 Summary of contents
Page 1
... EEPROM memory cell array. The EEPROM cell array will withstand more than 50,000 writes. The DS1869 is offered in two standard IC packages which include an 8-pin 300-mil DIP and an 8-pin 208-mil SOIC. The DS1869 can be configured to operate using a single pushbutton, dual pushbutton or digital source input by varying power-on conditions ...
Page 2
... Repetitive pulsed inputs can be used to step through each resistive position of the device in a relatively fast manner (see Figure 5b). The requirement for repetitive pulsed inputs is that pulses must be separated by a minimum time of 1 ms. If the input is not allowed to be inactive (high) for at least 1 ms, the DS1869 will interpret repetitive pulses as a single pulse. ...
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... All contact closure control inputs, UC, DC, and D, are internally pulled- 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 www.DataSheet4U.com DS1869 DUAL PUSHBUTTON CONFIGURATION ...
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... DS1869 DUAL PORT CONFIGURATION (TYPICAL EXAMPLE) Figure 2B The DS1869 is provided with two supply inputs -V and +V. The maximum voltage difference between the two supply inputs is +8.0 volts. The minimum voltage difference is +2.7 volts. All input levels are referenced to the negative supply input, -V. The voltage applied to any Dallastat terminal must not exceed the negative supply voltage (- ...
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... FLOWCHART: ONE-BUTTON OPERATION AND ELECTRICAL CONTROL Figure 3 CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1 SECOND www.DataSheet4U.com 15 DS1869 www.DataSheet www.DataSheet www.DataSheet www.DataSheet4U 4U.com 4U 4U .com .com .com ...
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... FLOWCHART: TWO-BUTTON OPERATION Figure 4 www.DataSheet4U.com CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1 SECOND 15 DS1869 www.DataSheet www.DataSheet www.DataSheet www.DataSheet4U 4U.com 4U 4U .com .com .com ...
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... I 1 CC1 I CC2 R 400 W 750 (- + 2.7V to 8.0V) SYMBOL MIN TYP CPW HPW t 1 CCP DS1869 (- +85 C) MAX UNITS NOTES - MAX UNITS NOTES ...
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... Tolerance for pulse timing is 15% on minimum inputs. 9. Idle state supply current is measured with no pushbutton pressed and with the wiper R CMOS load. 10. For +V referenced 5V. 11. Valid only. t CPW DS1869 . IH tied www.DataSheet www.DataSheet4U www.DataSheet www.DataSheet 4U ...