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Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving

封装信息

Lead Count (#) 20
Pkg. Code MDV
Pitch (mm) 1.27
Pkg. Type SOICW
Pkg. Dimensions (mm) 12.80 x 7.49 x 0.00

环境和出口类别

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Exempt
ECCN (US) EAR99
HTS (US) 8542390001
RoHS (ISL12022MAIBZ-T) 下载

产品属性

Lead Count (#) 20
Carrier Type Reel
Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Exempt
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range -40 to +85°C
Country of Assembly Philippines
Country of Wafer Fabrication Singapore
Price (USD) | 1ku 4.25582
Accuracy ±5 ppm
Alarms (#) 1
Battery Backup Yes
Battery Current (nA) 1000
Battery Seal Yes
Batttery Voltage Range (V) 1.8 - 5.5
CPU Supervisory Function POR No
CPU Supervisory Function Watchdog Timer No
Crystal Frequency Trimming Yes
Frequency Out IRQ_bar/F<sub>OUT</sub>
Frequency Out Pin Yes
IRQ Pin Yes
IRQ_bar IRQ_bar/FOUT
Interface I2C
Length (mm) 12.8
MOQ 1000
Memory Type RAM
Oscillator Compensation -336 to +337
Other Functions Battery Switchover Time Stamp, Battery Status Monitor, Brown-out Alarm, Daylight Savings
Pitch (mm) 1.3
Pkg. Dimensions (mm) 12.8 x 7.5 x 0.00
Pkg. Type SOICW
RESET_bar No
Reset No
SRAM 128 Bytes
Selectable Frequency Output 15
Supply Voltage Vcc (Min) (V) 2.7
Supply Voltage Vcc Range 2.7 to 5.5
TRIP Voltage for POR 6 Select VTRIP Levels
Tamper Detect No
Thickness (mm) 0
Time Keeping Current (µA) 3.5
Timer No
Width (mm) 7.5
field__battery_voltage_max_ 5.5
field__battery_voltage_min_ 1.8

描述

The ISL12022MA device is a low power real time clock (RTC) with an embedded temperature sensor and crystal. Device functions include oscillator compensation, clock/calendar, power fail and low battery monitors, brownout indicator, one-time, periodic or polled alarms, intelligent battery backup switching, Battery Reseal™ function and 128 bytes of battery-backed user SRAM. Backup battery current draw is less than 1. 6µA over the temperature range. The device is offered in a 20 Ld SOIC module that contains the RTC and an embedded 32. 768kHz quartz crystal. The calibrated oscillator provides less than ±5ppm drift over the full -40°C to +85°C temperature range. The RTC tracks time with separate registers for hours, minutes, and seconds. The calendar registers track date, month, year and day of the week and are accurate through 2099, with automatic leap year correction. Daylight Savings time adjustment is done automatically, using parameters entered by the user. Power fail and battery monitors offer user-selectable trip levels. The time stamp function records the time and date of switchover from VDD to VBAT power, and also from VBAT to VDD power. The ISL12022MA features enhanced immunity to ESD per the IEC61000-4-2 standard, and also provides improved resistance to system leakage related to environmental moisture.