Features
- Real-Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month and Year
- 3 Selectable Frequency Outputs
- 64-Bit Unique ID
- Two Non-Volatile Alarms
- Settable on the Second, Minute, Hour, Day of the Week, Day or Month
- Repeat Mode (Periodic Interrupts)
- Automatic Backup to Battery or Super Cap
- Default 32.768kHz Output at IRQ/FOUT (FO1 = 0, FO0 = 1)
- On-Chip Oscillator Compensation
- Internal Feedback Resistor and Compensation Capacitors
- 64 Position Digitally Controlled Trim Capacitor
- 6 Digital Frequency Adjustment Settings to ±30ppm
- 512x8-Bits of EEPROM
- 16-Bytes Page Write Mode (32 total pages)
- 8 Modes of BlockLock™ Protection
- Single Byte Write Capability
- High Reliability
- Data Retention: 50 years
- Endurance: 2,000,000 Cycles Per Byte
- I2C Interface
- 400kHz Data Transfer Rate
- 800nA Battery Supply Current
- Available in 8 Ld TDFN package
- Pb-Free (RoHS Compliant)
ISL12024IRTC Functional Diagram
Description
The ISL12024IRTCZ device is a micro-power real-time clock with embedded 64-bit unique ID, timing and crystal compensation, clock/calender, power-fail indicator, two periodic or polled alarms, intelligent battery backup switching, and integrated 512x8-bit EEPROM configured in 16 Bytes per page. The device contains a 64-bit unique ID number for security and product identification applications. It is housed in a tiny 3mmx3mm TDFN package for small handheld applications. The clock output defaults to 32. 768kHz on initial power-up for low power microcontroller clocking applications. The low 800nA battery supply current extends backup battery life.
Applications
- Utility Meters
- Audio Video Equipment
- Modems
- Network Routers, Hubs, Switches, Bridges
- Cellular Infrastructure Equipment
- Fixed Broadband Wireless Equipment
- Pagers/PDA
- POS Equipment
- Test Meters/Fixtures
- Office Automation (Copiers, Fax)
- Computer Products
- Security Related Application
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL12024IRTCZ | Obsolete | N/A | In Stock | RoHS:EN | TDFN | 8# | Tube | 1 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
| ISL12024IRTCZ-T | Obsolete | N/A | In Stock | RoHS:EN | TDFN | 8# | Reel | 1 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
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- Application NotePDF 302 KB an1549 Nov 03, 2007AI-generated Summary: Power issues in real-time clock (RTC) applications include voltage spikes during AC turn-on, power glitches, and low or no battery backup voltage. Adding a medium power Schottky diode at the RTC Vpp pin helps clamp voltage spikes. Battery backup maintains time during power loss but fast glitches can corrupt RAM. Circuit designs with resistors and MOSFETs prevent SRAM corruption during power-up. Proper filtering and power-up delays ensure reliable 12C communication and data integrity.
- Manual - Development ToolsPDF 815 KB an1745 Feb 17, 2008
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Datasheets (1)
- Manual - Development ToolsPDF 815 KB an1745 Feb 17, 2008
Manuals & Guides (1)
- Application NotePDF 302 KB an1549 Nov 03, 2007AI-generated Summary: Power issues in real-time clock (RTC) applications include voltage spikes during AC turn-on, power glitches, and low or no battery backup voltage. Adding a medium power Schottky diode at the RTC Vpp pin helps clamp voltage spikes. Battery backup maintains time during power loss but fast glitches can corrupt RAM. Circuit designs with resistors and MOSFETs prevent SRAM corruption during power-up. Proper filtering and power-up delays ensure reliable 12C communication and data integrity.
Application Notes & White Papers (1)
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- Software & Tools - OtherPDF 846 KB rtc_win8_preinstallation_procedure Mar 02, 2019
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- Software & Tools - OtherPDF 846 KB rtc_win8_preinstallation_procedure Mar 02, 2019
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