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Timing Circuits - Real Time Clocks - High Precision RTC Module with Embedded Crystal and Temperature CompensationClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL12020M Real Time Clock with Embedded Crystal, ą5ppm Accuracy2.7 to 5.51.8 to 5.5100051Y15NNYY6 Select VTRIP LevelsIRQ_bar/FOUTIRQ_bar/FOUTN-305 to +305128 Bytes• Battery Switchover Time Stamp
• Battery Status Monitor
• Brown-out Alarm
• Daylight Savings
2.7920 Ld DFN
20 Ld DFN T+R 

Timing Circuits - Real Time Clocks - High Precision RTC with On-Chip Temperature SensorClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL12022 Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ą5ppm with Auto Day Light Saving2.7 to 5.51.8 to 5.5100051Y15NNYY6 Select VTRIP LevelsIRQ_bar/FOUTIRQ_bar/FOUTN-305 to +305128 Bytes• Battery Switchover Time Stamp
• Battery Status Monitor
• Brown-out Alarm
• Daylight Savings
1.798 Ld SOIC
8 Ld SOIC T+R 
ISL12023 Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ą5ppm with Auto Day Light Saving2.7 to 5.51.8 to 5.5100051Y15NNYY6 Select VTRIP LevelsIRQ_barFOUTN-305 to +305128 Bytes• Battery Switchover Time Stamp
• Battery Status Monitor
• Brown-out Alarm
• Daylight Savings
1.9314 Ld TSSOP
14 Ld TSSOP T+R 

Timing Circuits - Real Time Clocks - RTC with Embedded Unique IDClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL12024 Real-Time Clock/Calendar with Embedded Unique ID2.7 to 5.51.8 to 5.5850    2Y3NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-64 to +110512x8-Bit EEPROM• 64-bit Unique ID1.738 Ld SOIC
8 Ld SOIC T+R
8 Ld TSSOP
8 Ld TSSOP T+R 
ISL12025 Real-Time Clock/Calendar with I2C Bus™ and EEPROM2.7 to 5.51.8 to 5.5850    2Y    YYYY5 Select VTRIP Levels        Y-64 to +110512x8-Bit EEPROM• 64-bit Unique ID
• CPU Supervisor
1.918 Ld SOIC
8 Ld SOIC T+R
8 Ld TSSOP
8 Ld TSSOP T+R 

Timing Circuits - Real Time Clocks - RTC with Integrated EEPROM and CPU Supervisory FunctionsClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL12026 Real Time Clock/Calendar with I2C Bus™ and EEPROM2.7 to 5.51.8 to 5.5850    2Y3NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-64 to +110512x8-Bit EEPROM    1.408 Ld SOIC
8 Ld SOIC T+R
8 Ld TSSOP
8 Ld TSSOP T+R 
ISL12027 Real Time Clock/Calendar with EEPROM2.7 to 5.51.8 to 5.5850    2Y    YYYY5 Select VTRIP Levels from 2.63V to 4.64V        Y-64 to +110512x8-Bit EEPROM    1.658 Ld SOIC
8 Ld SOIC T+R
8 Ld TSSOP
8 Ld TSSOP T+R 
ISL12028 Real Time Clock/Calendar with I2C Bus™ and EEPROM2.7 to 5.51.8 to 5.5850    2Y3YYYY5 Select VTRIP Levels from 2.63V to 4.64VIRQ_bar/FOUTIRQ_bar/FOUTY-64 to +110512x8-Bit EEPROM    1.8014 Ld SOIC
14 Ld SOIC T+R
14 Ld TSSOP
14 Ld TSSOP T+R 
ISL12029 Real Time Clock/Calendar with I2C Bus™ and EEPROM2.7 to 5.51.8 to 5.5850    2Y3YYYY5 Select VTRIP Levels from 2.63V to 4.64VIRQ_bar/FOUTIRQ_bar/FOUTY-64 to +110512x8-Bit EEPROM    1.8014 Ld SOIC
14 Ld SOIC T+R
14 Ld TSSOP
14 Ld TSSOP T+R 

Timing Circuits - Real Time Clocks - Feature-Rich RTC with 50/60 Cycle AC InputClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL12030 Low Power RTC with 50/60 Cycle AC Input, Alarms and Daylight Savings Correction2.7 to 5.5            2N    NNY        IRQ_bar    N    128 Bytes• Daylight Savings1.828 Ld SOIC
8 Ld SOIC T+R 
ISL12032 Low Power RTC with Battery Backed SRAM and 50/60 Cycle AC Input and Xtal Back-up2.7 to 5.51.8 to 5.5800    2Y7NNYY    IRQ_barFOUTN-60 to +60128 Bytes• Trickle Charger
• Crystal Backup
• Daylight Savings
2.0614 Ld TSSOP
14 Ld TSSOP T+R 

Timing Circuits - Real Time Clocks - Low Power RTC with Battery Backed SRAMClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL1208 I2CŪ Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-94 to +1402 Bytes    0.968 Ld MSOP
8 Ld MSOP T+R
8 Ld SOIC
8 Ld SOIC T+R
8 Ld TDFN
8 Ld TDFN T+R
Eval Board 
ISL1218 Low Power RTC with Battery Backed SRAM2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-94 to +1408 Bytes    1.278 Ld MSOP
8 Ld MSOP T+R
8 Ld SOIC
8 Ld SOIC T+R 
ISL1220 Low Power RTC with 8 Bytes of Battery Backed SRAM and Separate FOUT2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_barFOUTN-94 to +1408 Bytes    1.1410 Ld MSOP
10 Ld MSOP T+R 

Timing Circuits - Real Time Clocks - Low Power RTC with Battery Backed SRAM and Event DetectionClick the column header   to sort descending/ascending.
Device


Data-
Sheet


Device Description


VCC (V)


VBAT (V)


IBAT (nA)


Accuracy (ppm)


Alarms


Crystal Frequency Trimming


Selectable Frequency Output


CPU Supervisory Function POR


CPU Supervisory Function Watchdog Timer


Battery Seal


Battery Backup


VTRIP for POR


IRQ_bar


FOUT


RESET_bar


Oscillator Compensation (ppm)


SRAM


Other Functions


1K Units MSRP ($)


Package


ISL1209 Low Power RTC with Battery Backed SRAM and Event Detection2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-94 to +1402 Bytes • Event Detect1.2910 Ld MSOP
10 Ld MSOP T+R
10 Ld MSOP T+R
Eval Board 
ISL1219 Low Power RTC with Battery Backed SRAM and Event Detection2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_bar/FOUTIRQ_bar/FOUTN-94 to +1402 Bytes• Event Detect
• Time Stamp
1.3210 Ld MSOP
10 Ld MSOP T+R 
ISL1221 Low Power RTC with Battery Backed SRAM and Event Detection2.7 to 5.51.8 to 5.5400    1Y15NNYY    IRQ_bar/EVDET_barFOUTN-94 to +1402 Bytes• Event Detect
• Time Stamp
1.4010 Ld MSOP
10 Ld MSOP T+R 
*Data listed above is for reference only, please refer to Product Data Sheets for current specifications.