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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

生產(chǎn)狀態(tài)	Mass Production
供電電壓Vcc (最小值) (V)	2.7
供電電壓Vcc (最大值) (V)	5.5
VBAT (最小值)	1.8V
VBAT (最大值)	5.5 V
IBAT (nA)	400
警報(bào)	1
晶體頻率微調(diào)	Yes
可選頻率輸出	15
CPU監(jiān)控功能POR	No
CPU監(jiān)控功能看門狗定時(shí)器	No
電池密封	Yes
備用電池	Yes
POR的VTRIP	Yes
IRQ_Bar	IRQ_bar/FOUT
FOUT	IRQ_bar/FOUT
RESET_bar	No
振蕩器補(bǔ)償 (ppm)	-94 to +140
SRAM	2 Bytes
內(nèi)存類型	RAM
總線/輸出接口	I²C
守時(shí)電流	1.2 µA
IRQ引腳	Yes
頻率輸出引腳	Yes
定時(shí)器	No
篡改檢測(cè)	No
復(fù)位	No
資質(zhì)級(jí)別	Standard
電池電壓范圍 (V)	1.8 to 5.5
供電電壓Vcc范圍 (V)	2.7 to 5.5
采樣	YES
溫度范圍	-40 to +85