概要
説明
Support is limited to customers who have already adopted these products.
The ISL12028 device is a low power real time clock with clock/calendar, power-fail indicator, clock output and crystal compensation, two periodic or polled alarms (CMOS output), intelligent battery backup switching, CPU Supervisor, integrated 512x8-bit EEPROM configured in 16 bytes per page. The oscillator uses an external, low-cost 32. 768kHz crystal. The real-time clock tracks time with separate registers for hours, minutes and seconds. The device has calendar registers for date, month, year and day of the week. The calendar is accurate through 2099, with automatic leap year correction. The ISL12028 and ISL12028A Power Control Settings are different. The ISL12028 uses the Legacy Mode Setting, and the ISL12028A uses the Standard Mode Setting. Applications that have VBAT > VDD will require only the ISL12028A. Please refer to Power Control Operation on page 14 for more details. Also, please refer to I2C Communications During Battery Backup and LVR Operation on page 25 for important details.
特長
- Real Time Clock/Calendar
- Tracks time in Hours, Minutes and Seconds
- Day of the Week, Day, Month and Year
- 3 Selectable Frequency Outputs
- 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 SuperCap
- Power Failure Detection
- 800nA Battery Supply Current
- 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-Byte Page Write Mode (32 total pages)
- 8 Modes of BlockLock™ Protection
- Single Byte Write Capability
- Data Retention: 50 years
- Endurance: >2,000,000 Cycles Per Byte
- CPU Supervisor Functions:
- Power On Reset, Low Voltage Sense
- Watchdog Timer (0.25s, 0.75s and 1.75s)
- I2C Interface
- 400kHz Data Transfer Rate
- 14 Ld SOIC and 14 Ld TSSOP Packages
- Pb-Free (RoHS Compliant)
製品比較
アプリケーション
- Utility Meters
- HVAC Equipment
- Audio/Video Components
- Modems
- Network Routers, Hubs, Switches, Bridges
- Cellular Infrastructure Equipment
- Fixed Broadband Wireless Equipment
- Pagers/PDA
- POS Equipment
- Test Meters/Fixtures
- Office Automation (Copiers, Fax)
- Home Appliances
- Computer Products
- Other Industrial/Medical/Automotive
設計・開発
Processing table
| SOICN | Tube | 1000 | ||
| SOICN | Reel | 2500 | ||
| SOICN | Tube | 1000 | ||
| SOICN | Reel | 2500 | ||
| TSSOP | Tube | 960 | ||
| TSSOP | Reel | 2500 | ||
| TSSOP | Tube | 960 | ||
| TSSOP | Reel | 2500 |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product