INTERSIL SELECTION GUIDE REAL TIME High-Accuracy RTC Modules, Feature-Rich RTCs, Low-Cost, Low-Power RTCs Q3/Q4 2011 INTERSIL SELECTION GUIDE REAL TIME CLOCK ICs Feature-Rich and Cost-Effective Real Time Clock ICs From Intersil Intersil Real Time Clocks Overview Intersil’s family of Real Time Clock products offer a wide variety of useful industry-standard functions and features including clocks and calendars, programmable alarms with event recording, non-volatile memory for system personality data and unique device IDs, and power supervision including backup battery and system shutdown management. The 3-in-1 Module products feature an integrated 32kHz crystal with onboard temperature sensor, to maintain high accuracy over the rated temperature range without user calibration. Target Applications •Handheld / Portable Devices •Industrial/ Communications / Specialty •High Volume Consumer •Residential / Industrial Power Meter Small, cost-effective and feature-rich RTC High Accuracy 3-in-1 Modules Feature-Rich Low Cost www.intersil.com/timing Te m In te g ra te d Cr ys ta l O pe n b ra o tu ar re d Co Cr Pr m yst og pe al ra ns m at m io ab n le A Fr la eq rm ue nc yO ut pu On ts bo ar d M em Su or pe y rv iso ry Fu nc Ba tio M ck ns an up ag B em att en ery Ev t en tD et ec tio n Ti m e St am p Intersil’s Real Time Clocks Offer the Broadest Choice of Product Features INTERSIL SELECTION GUIDE REAL TIME CLOCK ICs High-Accuracy RTC Modules Tiny RTC Module with Embedded Crystal and Temperature Sensor Achieves Better Than ±5.0ppm Accuracy block diagram Embedded Temperature Sensor Embedded Crystal ISL12022M Tiny Real Time Clock (RTC) module with embedded crystal and temperature compensation circuitry achieves better than ±5 ppm accuracy over the entire industrial temperature range (-40°C to +85°C). Intersil is the first to offer an RTC module in a DFN package. This makes this module very attractive for handheld and portable applications that have stringent space requirements. Frequency Control Temp Sensor POR VDD I2C Single Alarm VTRIP Switch ± Clock Compensation Registers Power Control 2.7V to 5.5V 1.8V to 5.5V µP Calendar Brown-out Alarm Batterybacked User SRAM Battery ReSeal™ VBAT IRQ/FOUT Battery or Super Cap High Accuracy Even in Extreme Temperature Conditions ISL12020M Compensated Crystal Drift 10.00 0.0 FOUT (ppm) Key Features • ISL12020M: World’s smallest 3-in-1 RTC Module -- RTC + crystal + temperature sensor -- Available in DFN package • Better than ±5.0ppm accuracy for industrial temperature range -- Factory programmed for optimal accuracy • Battery Reseal™ function extends battery shelf life • ISL12022M: Low-cost SOIC package -- Industrial: Utility meters, POS, instruments -- Consumer: GPS handhelds, cameras, copiers • Stand-alone RTC with temperature sensor also available (ISL12022, ISL12023) Crystal Oscillator 8.00 -20.0 6.00 -40.0 4.00 FOUT (ppm) RTC Modules with Embedded Crystal and Temp Comp ISL12020M, ISL12022M -60.0 -80.0 -100.0 -160.0 -40 2.00 0.00 -2.00 -4.00 -120.0 -140.0 Better than ±5.0ppm over -40 to +85°C! -6.00 -8.00 Uncompensated Crystal Drift -20 0 20 40 Temperature (°C) 60 80 100 -10.00 -50 -30 -10 10 30 Temperature (°C) 50 70 90 High-Accuracy RTC Modules With Embedded Crystal and Temperature Compensation Device IBAT (nA) Alarms Selectable Frequency Output CPU Supervisory Function Watchdog POR Timer Battery Seal Backup IRQ FOUT SRAM Other Functions • Battery Switchover Time Stamp Package ISL12020M 1000 1 15 N N Y Y Shared Pin 128 Bytes ISL12022M 1000 1 15 N N Y Y Shared Pin 128 Bytes ISL12022MA 1000 1 15 N N Y Y Shared Pin 128 Bytes • 100% Pin Compatible with ISL12022M • Firmware Compatible with ISL12020M and ISL12022M • Enhanced ESD Performance Enhanced 20 Ld SOIC ISL12022M -R5421 1000 1 15 N N Y Y Shared Pin 128 Bytes • 100% Pin Compatible with ISL12022M • Firmware Compatible with ISL12020M and ISL12022M Enhanced 20 Ld SOIC www.intersil.com/timing • Battery Status Monitor • Battery Switchover Time Stamp • Battery Status Monitor • Enhanced Environmental Moisture Tolerance 20 Ld DFN 20 Ld SOIC INTERSIL SELECTION GUIDE REAL TIME CLOCK ICs Feature-Rich RTCs Feature-Rich RTC with Embedded Unique ID ISL12024, ISL12025 block diagram RTC with Factory Programmed 64-bit Unique ID Enhances Security Power-On Reset and Watchdog Timer (ISL12025 only) The ISL12024, ISL12025 are RTCs with embedded 64-bit unique ID, 512 x 8-bits EEPROM, and supervisory functions (ISL12025). These devices permit data encryption in security and networking applications and eliminate the need for an external stand-alone unique ID. ISL12025 Crystal Oscillator Key Features • Real-Time Clock/Calendar-Tracks Time in Hours, Minutes and Seconds -- Day of the Week, Day, Month and Year • 64-Bit Read-Only Unique ID • Two Non-Volatile Alarms -- Settable by Seconds, to Months -- Repeat Mode (Periodic Interrupts) • Automatic Backup Switching to Battery or SuperCap™ • On-Chip Oscillator Compensation -- Internal Feedback Resistor and Compensation Capacitors -- Analog and Digital Trim Feature-Rich RTCs IBAT Device (nA) Alarms With 50/60 Cycle AC Input Selectable Frequency Output CPU Supervisory Function Battery Watchdog BackPOR Timer Seal up Automatic Backup Battery Switch 5 selectable V TRIP levels from 2.63V to 4.64V Serial Interface Decoder µP I2C 64-bit Unique ID CPU Supervisor Functions Power On Reset Clock FOUT SRAM ISL12030 N/A 2 N N N N N Y N 128 Bytes ISL12032 800 2 7 Y Y N Y Y Y 128 Bytes 2.7V to 5.5V VDD 1.8V to 5.5V VBAT Battery or SuperCap Alarm Calendar Watchdog Timer Batterybacked User SRAM Embedded 64-bit Unique ID Do you track your product for warranty purposes? • Can be used to identify each node. Data from each node can be encrypted with a unique ID for security purposes. • Unique ID can be accessed for reading purposes only. IRQ Battery Switch Circuitry 512 x 8-Bits EEPROM 512x8-bits EEPROM • 16-byte page write mode (32 total pages) • 8 modes of BlockLock™ protection • >2,000,000 write cycle and 50 years endurance reliability Other Functions • AC Input • AC Input • Crystal Backup • Trickle Charger Package 8 Ld SOIC 14 Ld TSSOP High Precision RTC with On-Chip Temperature Sensor • Battery Switchover Time Stamp 8 Ld SOIC • Battery Status Monitor • Battery Switchover Time Stamp 14 Ld TSSOP • Battery Status Monitor ISL12022 1000 1 15 N N Y Y Shared Pin 128 Bytes ISL12023 1000 1 15 N N Y Y Dedicated Dedicated Pin Pin 128 Bytes 2 3 N N Y Y Shared Pin 512x8-Bit EEPROM N N Y Y Y Y Shared Pin Shared Pin 512x8-Bit EEPROM 512x8-Bit EEPROM • 64-bit Unique ID • 64-bit Unique ID 8 Ld SOIC, 8 Ld TSSOP 8 Ld TDFN Y Y Y Y Y Y 512x8-Bit EEPROM 512x8-Bit EEPROM 512x8-Bit EEPROM • CMOS output on alarms • Open drain output on alarms 8 Ld SOIC, 8 Ld TSSOP 14 Ld SOIC, 14 Ld TSSOP 14 Ld SOIC, 14 Ld TSSOP With Integrated EEPROM ISL12026 850 8 Ld SOIC, 8 Ld TSSOP With Integrated EEPROM and Embedded Unique ID ISL12024 ISL12024IRTCZ 850 850 2 2 3 3 N N With Integrated EEPROM and CPU Supervisory Functions ISL12027 ISL12028 ISL12029 850 850 850 2 2 2 3 3 Y Y Y Y Y Y - Shared Pin Shared Pin With Integrated EEPROM, Embedded Unique ID, and CPU Supervisory Functions ISL12025 850 www.intersil.com/timing 2 Y Y Y Y - - 512x8-Bit EEPROM • 64-bit Unique ID • CPU Supervisor 8 Ld SOIC, 8 Ld TSSOP INTERSIL SELECTION GUIDE REAL TIME CLOCK ICs Low-Cost, Low-Power RTCs Low Power, with IRQs, Alarm and Timer ISL12057, ISL12058, ISL12059 Micro-Power, Low Cost, Small RTC Provides Significant PCB Real-Estate Savings The ISL12057/8/9 offer a cost-improved 3-Volt alternative to the most popular low-accuracy timekeeping products, with operation down to 1.4V for battery-powered, portable applications. ISL12057 •Drop-in replacement for DS1337 •Features operation down to 1.4V, TDFN package, and competitive price ISL12058 Key Features • Real time clock and calendar • Low standby current • Multiple selectable frequency outputs • Selectable alarms • I2C interface • Operates over 1.4V to 3.6V supplies • Variety of popular compact packages) Cost-reduced alternative to ISL1208 with added advantage of 3V operation. ISL12059 •Improved alternative to ST M41T00S •Features operation down to 1.4V and competitive price Low-Cost, Low-Power RTCs Device IBAT (nA) Alarms Selectable Frequency Output CPU Supervisory Function Watchdog POR Timer Battery Seal Backup IRQ FOUT With Battery Backup ISL12008 800 1 1 N N Y Y - Dedicated Pin ISL12082 800 1 4 N N Y Y Dedicated Pin Dedicated Pin 15 N N Y Y SRAM Other Functions Package 8 Ld SOIC N • Timer 10 Ld MSOP, 8 Ld SOIC With Battery Backed SRAM ISL1208 400 1 ISL1218 400 1 15 N N Y Y ISL1220 400 1 15 N N Y Y N Y Y Shared Pin Shared Pin Dedicated Pin Dedicated Pin 8 Ld MSOP, 8 Ld SOIC, 8 Ld TDFN 2 Bytes 8 Bytes 8 Ld MSOP, 8 Ld SOIC 8 Bytes 10 Ld MSOP With Battery Backed SRAM and Event Detection ISL1209 400 1 15 N ISL1219 400 1 15 N N Y Y ISL1221 400 1 15 N N Y Y Shared Pin Shared Pin Dedicated Pin Dedicated Pin 2 Bytes 2 Bytes 2 Bytes • Event Detect • Event Detect • Time Stamp • Event Detect • Time Stamp 10 Ld MSOP 10 Ld MSOP 10 Ld MSOP With IRQs, Alarm and Timer ISL12057 400 2 4 N N N N Shared Pin N • 3V 8 Ld SOIC, 8 Ld MSOP, 8 Ld TDFN ISL12058 400 2 4 N N N N Shared Pin N • 3V 8 Ld SOIC, 8 Ld MSOP, 8 Ld TDFN, 8 Ld µTDFN ISL12059 400 0 1 N N N N Shared Pin N • 3V 8 Ld SOIC www.intersil.com/timing ™ Intersil Main Offices Visit www.intersil.com for a complete list of sales representatives and distributors. 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