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ISL28191 bảng dữ liệu(PDF) 8 Page - Intersil Corporation |
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ISL28191 bảng dữ liệu(HTML) 8 Page - Intersil Corporation |
8 / 44 page 8 Intersil Signal Path Products 2012 www.intersil.com Block Diagram High Accuracy Even in Extreme Temperature Conditions RTC Modules with Embedded Crystal and Temp Comp: ISL12022M 3 in 1 RTC Module (RTC + Embedded Crystal + Temp Sensor) Achieves Better than +5ppm Accuracy Key Features • ±5ppm Accuracy (-40°C to +85°C) - Factory programmed RTC for optimal accuracy - Onboard temperature sensor - Embedded crystal • Reliable Timekeeping & Power Management - Backup battery management - Vdd and battery status monitors and switchover timestamp - Battery ResealTM function extends battery shelf life • User Programmability - I2C Interface - 128 bytes battery-backed user SRAM • See also - ISL12020M (DFN 3 in 1); ISL12022 and ISL12023 standalone RTCs ISL12022M Crystal Oscillator Frequency Control Temp Sensor Single Alarm Compen- sation Registers Brown-out Alarm Battery ReSeal™ µP I2C IRQ/FOUT Clock Calendar POR Switch VDD VBAT ± Battery- backed User SRAM Battery or Super Cap 2.7V to 5.5V 1.8V to 5.5V TRIP V Power Control Embedded Crystal Embedded Temperature Sensor -160.0 -140.0 -120.0 -100.0 -80.0 -60.0 -40.0 -20.0 0.0 -40 -20 0 20 40 60 80 100 Temperature (°C) ISL12022M Compensated Crystal Drift Uncompensated Crystal Drift Better than ±5.0ppm over -40 to +85°C! Device IBAT (nA) Alarms Selectable Frequency Output CPU Supervisory Function Battery IRQ FOUT SRAM Other Functions Package POR Watch- dog Timer Seal Backup ISL12020M 1000 1 15 N N Y Y Shared Pin 128 Bytes • Battery Switchover Time Stamp • Battery Status Monitor 20 Ld DFN ISL12022M 1000 1 15 N N Y Y Shared Pin 128 Bytes • Battery Switchover Time Stamp • Battery Status Monitor 20 Ld SOIC ISL12022MA 1000 1 15 N N Y Y Shared Pin 128 Bytes • Enhanced Environmental MoistureTolerance • 100% Pin Compatible with ISL12022M • Firmware Compatible with ISL12020M and ISL12022M Enhanced 20 Ld SOIC ISL12022M-R5421 1000 1 15 N N Y Y Shared Pin 128 Bytes • Enhanced ESD Performance • 100% Pin Compatible with ISL12022M • Firmware Compatible with ISL12020M and ISL12022M Enhanced 20 Ld SOIC -5 -4 -3 -2 -1 0 1 2 3 4 5 -40 -20 0 20 40 60 80 TEMPERATURE (°C) 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 Real Time Clocks ► High-Accuracy RTC Modules |
Số phần tương tự - ISL28191 |
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Mô tả tương tự - ISL28191 |
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