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ISL1208新品上市

2020-10-21 15:33

OVERVIEW

The ISL1208 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and battery-backed user SRAM.

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.

KEY FEATURES

● Real Time Clock/Calendar

● Tracks Time in Hours, Minutes, and Seconds

● Day of the Week, Day, Month, and Year

● 15 Selectable Frequency Outputs

● Single AlarmSettable to the Second, Minute, Hour, Day of the Week, Day, or Month

● Single Event or Pulse Interrupt Mode

● Automatic Backup to Battery or Super Capacitor

● Power Failure DetectionOn-Chip Oscillator Compensation

● 2 Bytes Battery-Backed User SRAM

● I²C Interface

● 400kHz Data Transfer Rate

● 400nA Battery Supply Current

● Same Pin Out as ST M41Txx and Maxim DS13xx Devices

● Small Package Options

● 8 Ld MSOP and SOIC Packages

● 8 Ld TDFN Package

● Pb-Free Available (RoHS Compliant)

BLOCK DIAGRAM

PARAMETRICS

生产状态	Mass Production
供电电压Vcc (最小值) (V)	2.7
供电电压Vcc (最大值) (V)	5.5
VBAT (最小值)	1.8V
VBAT (最大值)	5.5 V
IBAT (nA)	400
警报	1
晶体频率微调	Yes
可选频率输出	15
CPU监控功能POR	No
CPU监控功能看门狗定时器	No
电池密封	Yes
备用电池	Yes
POR的VTRIP	Yes
IRQ_Bar	IRQ_bar/FOUT
FOUT	IRQ_bar/FOUT
RESET_bar	No
振荡器补偿 (ppm)	-94 to +140
SRAM	2 Bytes
内存类型	RAM
总线/输出接口	I²C
守时电流	1.2 µA
IRQ引脚	Yes
频率输出引脚	Yes
定时器	No
篡改检测	No
复位	No
资质级别	Standard
电池电压范围 (V)	1.8 to 5.5
供电电压Vcc范围 (V)	2.7 to 5.5
采样	YES
温度范围	-40 to +85