DS1602S

time counter, SOP, –0.3V to +7.0V

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Price:: US $3.20~3.50 / piece [Get Latest Price]

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	US $3.20~3.50

PartNumber:: DS1602S

Brand:: Dallas Semiconductor - Maxim | Pack: SOP | D/C: 08+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2011-07-24

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Part Number:DS1602S
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Product Summary

The DS1602S is a real time clock/elapsed time counter designed to count seconds when VCC power is applied and continually count seconds under battery backup power with an additional counter regardless of the condition of VCC. The DS1602S can be used to derive time of day, week, month, and year by using a software algorithm. The VCC powered counter will automatically record the amount of time that VCC power is applied. This function of this is particularly useful in determining the operational time of equipment in which the DS1602S is used. Alternatively, this counter can also be used under software control to record real time events. Communication to and from the DS1602S takes place via a 3–wire serial port. A 1-byte protocol selects read/ write functions, counter clear functions and oscillator trim. A low cost 32.768 kHz crystal attaches directly to the X1 and X2 pins. If battery powered-only operation is desired, the VBAT pin must be grounded and the VCC pin must be connected to the battery.

Parametrics

DS1602S absolute maximum ratings: (1)Voltage on Any Pin Relative to Ground: –0.3V to +7.0V; (2)Operating Temperature: –40℃ to +85℃; (3)Storage Temperature: –55℃ to +125℃; (4)Soldering Temperature: 260℃ for 10 seconds.

Features

DS1602S features: (1)Two 32–bit counters keep track of real time and elapsed time; (2)Counters keep track of seconds for over 125 years; (3)Battery powered counter counts seconds from the time battery is attached until VBAT is less than 2.5 volts; (4)VCC powered counter counts seconds while VCC is above 4.25 volts and retains the count in the absence of VCC under battery backup power; (5)Clear function resets selected counter to 0; (6)Read/Write serial port affords low pin count; (7)Maximum current drain of less than 1 μA from VBAT pin when serial port is disabled.