STMICROELECTRONICS  

M41T83 Series 5.5 V Serial I2C Bus 32 kHz Real-Time Clock - QFN-16 (4x4)

Mfr Part#: M41T83SQA6F
Mounting Method:  Surface Mount
Package Style:  QFN-16
Packaging:  Cut Tape
Std Packaging Qty:  1,000

 
 

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Prices

$1.33 USD (each)
200+ $1.33 (Save 4%)

Availability

Qty in Stock : 0
Reserve Stock : 0
In Transit : 31,000
LT: 5-10 Days
Min. Order Qty: 1,000
Multiple of: 1,000
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Overview

Product Highlight

  • Supply Voltage-Nom: 3 to 5.5 V
  • Interface: I2C
  • Non-Volatile Memory Size: 32 B
The M41T83SQA6F is a low power serial I2C bus real-time clock (RTC) with a built-in 32.768 KHz oscillator, available in QFN-16 package.

It has built-in power sense circuit which detects power failures and automatically switches to the battery supply when a power failure occurs. The energy needed to sustain the clock operations can be supplied by a small lithium.

Features:

  • Ultra-low battery supply current of 365 nA
  • Factory-calibrated accuracy of ±5 ppm typical after 2 reflows (SOX18)
    • Much better accuracies achievable using built-in programmable analog and digital calibration circuits
  • 2.0 V to 5.5 V clock operating voltage
  • Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
  • Automatic switchover and reset output circuitry (fixed reference)
  • M41T83S VCC = 3.00 V to 5.50 V (2.85 V ≤ VRST ≤ 3.00 V)
  • Serial interface supports I2C bus (400 kHz protocol)
  • Programmable alarm with interrupt function (valid even during battery backup mode)
  • Optional 2nd programmable alarm available
  • Square wave output defaults to 32 KHz on power-up (M41T83 only)
  • RESET (RST) output
  • Watchdog timer
  • Programmable 8-bit counter/timer
  • 7 bytes of battery-backed user SRAM
  • Battery low flag
  • Low operating current of 80 μA
  • Oscillator stop detection
  • Battery or SuperCap™ backup
  • Operating temperature of –40 °C to 85 °C
  • Package options
    • a 16-lead QFN (M41T83),
  • RoHS compliance: lead-free components are compliant with the RoHS directive

View the M41 Series of Real Time Clock

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