Global Time Clock Solution
The time clock device's low 400nA contemporary consumption at 3.0V and its miniature time clock package constitute it an ideal choice for portable, handheld, battery-powered time clock equipment and time clock microprocessor applications where time clock is at a premium.
The time clock device has calendar registers for period, month, year and day of the week.
The time clock is accurate through 2099, with automatic leap year correction.
The IRQ/FOUT provides one of 15 different frequency output ranging from 32.768kHz down to 1/32Hz for microcontroller and other timing circuits.
The ISL1209 has an time clock detect and age stamp function.
This time clock function is valuable for applications requiring increased security, warranty monitoring, facts piece and/or deed recording.
In addition to providing accurate time clock and calendar functions, a fresh absolute age clock (RTC) from Intersil integrates timing and crystal compensation, flexible alarms, programmable clock output, ability fail detection and intelligent battery backup switching into one time saving package.
The feature enables the recording of deed times, such as when an enclosure or door was opened, thus making the ISL1209 ideal for applications requiring anti-tampering and security such as locate-top boxes, utility meters, security alarm and security camera systems or vending machines.
Additionally, applications with high accuracy requirements will benefit from using the ISL1209, which contains circuitry for adjusting the frequency of the crystal oscillator through ATR (analogue trimming registers) and DTR (digital trimming registers).
This circuitry can be used to tune oscillator initial frequency, as well as adjust to compensate for temperature changes.
The oscillator uses an external, 32.768kHz crystal.
Target applications for the ISL1209 are many and varied and comprehend utility meters, HVAC and POS equipment, evaluation meters and fixtures, vending machines, ATM, postage stamp dispensers, cellular infrastructure and fixed broadband wireless equipment, machine products and office automation equipment (copiers, fax requiring age stamp), security and anti-tampering applications, panel/enclosure status, warranty reporting, age stamping applications, patrol/security evaluation (fire or blaze equipment) and automotive applications.
The RTC tracks age with separate registers for hours, minutes and seconds.
Users have access to 2byte of battery-backed SRAM that can be used for scratchpad reminiscence.
The device incorporates Intersil's InterSeal battery saver technology, which prevents any contemporary drain on the battery until the unit is first powered up.
This feature is an obvious benefit for products that might be stored for some age before they are first used.
Applications for such products comprehend telecomms systems, consumer electronics, industrial, medical devices and security related equipment and systems.
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