Datasheet > M41T82

M41T82

更新时间： 2024-11-29 04:42:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		电池时钟
页数	文件大小	规格书
58页	454K
描述
Serial RTC with battery switchover

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中文翻译

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M41T82 数据手册

M41T82

M41T83

Serial RTC with battery switchover

Features

■ 2.0 to 5.5V clock operating voltage

■ Ultra-low battery supply current of 365nA

■ Counters for tenths/hundredths of seconds,

seconds, minutes, hours, day, date, month,

year, and century

QFN16, 4mm x 4mm (QA)

(VFQFPN16)

■ Programmable clock calibration (analog and

digital)

■ Automatic switchover and reset output circuitry

(fixed reference)

– M41T83S

SOX18 (MY, 18-pin, 300mil SOIC

= 3.00V to 5.50V

with Embedded Crystal)

(2.85V ≤ V

≤ 3.00V)

RST

– M41T83R

= 2.70V to 5.50V

(2.55V ≤ V

≤ 2.70V)

RST

– M41T83Z

= 2.38V to 5.50V

SO8 (M)

(2.25V ≤ V

≤ 2.38V)

RST

■ Serial interface supports I C Bus (400kHz

1. Contact local ST sales office for availability of SOX18

package.

protocol)

■ Oscillator stop detection

■ Programmable alarm with interrupt function

(valid even during battery back-up mode)

■ Battery or Super-cap™ back-up

■ Operating temperature of –40°C to 85°C

■ Optional 2 programmable alarm available

■ Square wave output defaults to 32KHz on

■ Package options include:

power-up (M41T83 only)

– a 16-lead QFN (M41T83),

■ RESET (RST) output

– an 18-lead embedded crystal SOIC

(M41T83), or

■ Watchdog timer

– an 8-lead SOIC (M41T82)

■ Programmable 8-bit counter/timer

■ 7 bytes of battery-backed user SRAM

■ Battery low flag

■ RoHS compliance: lead-free components are

compliant with the RoHS directive.

■ Power-down time stamp (HT bit)

■ Low operating current of 80µA

March 2007

Rev 4

1/58

www.st.com

12 3 4 5 6 7...58

中文翻译

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M41T82RQA6E	STMICROELECTRONICS	获取价格	Serial I2C bus RTC with battery switchover
M41T82RQA6F	STMICROELECTRONICS	获取价格	Serial I2C bus RTC with battery switchover