M41T93ZQA6F
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STMicroelectronics M41T93ZQA6F

Manufacturer No:
M41T93ZQA6F
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC RTC CLK/CALENDAR SPI 16-QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The M41T93ZQA6F is a low-power serial SPI bus real-time clock (RTC) produced by STMicroelectronics. This component is designed to provide accurate time-keeping with a built-in 32.768 kHz oscillator, which can be either external crystal-controlled for the QFN16 package or embedded crystal for the SOX18 package. It features automatic switchover to a battery or supercapacitor backup during power failures, ensuring continuous operation. The M41T93ZQA6F is suitable for a wide range of applications requiring precise time and date tracking, including industrial, consumer, and automotive sectors.

Key Specifications

ParameterValue
Operating Voltage2.38 V to 5.50 V
Battery Supply Current365 nA
Factory Calibrated Accuracy±5 ppm typical after 2 reflows
Operating Temperature–40 °C to +85 °C
Package Options16-lead QFN, 18-lead embedded crystal SOIC (SOX18)
Serial InterfaceSPI bus (supports SPI mode 0 [CPOL = 0, CPHA = 0])
CountersTenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
Alarm FunctionsProgrammable alarm with interrupt function, optional 2nd programmable alarm
Additional FeaturesSquare wave output, RESET (RST) output, watchdog timer, programmable 8-bit counter/timer, 7 bytes of battery-backed user SRAM

Key Features

  • Ultra-low battery supply current of 365 nA
  • Factory calibrated accuracy ±5 ppm typical after 2 reflows (much better accuracies achievable using built-in programmable analog and digital calibration circuits)
  • Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
  • Automatic switchover and reset output circuitry
  • Compatible with SPI bus serial interface (supports SPI mode 0 [CPOL = 0, CPHA = 0])
  • Programmable alarm with interrupt function (valid even during battery backup mode) and optional 2nd programmable alarm
  • Square wave output (defaults to 32 KHz on power-up)
  • 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 supercapacitor backup

Applications

The M41T93ZQA6F is versatile and can be used in various applications, including:

  • Industrial automation and control systems
  • Consumer electronics such as smart home devices and appliances
  • Automotive systems requiring precise time-keeping
  • Medical devices and healthcare equipment
  • IoT devices and smart sensors

Q & A

  1. What is the operating voltage range of the M41T93ZQA6F?
    The operating voltage range is 2.38 V to 5.50 V.
  2. What is the typical battery supply current of the M41T93ZQA6F?
    The typical battery supply current is 365 nA.
  3. What is the factory calibrated accuracy of the M41T93ZQA6F?
    The factory calibrated accuracy is ±5 ppm typical after 2 reflows.
  4. What are the package options available for the M41T93ZQA6F?
    The package options include a 16-lead QFN and an 18-lead embedded crystal SOIC (SOX18).
  5. Does the M41T93ZQA6F support SPI interface?
    Yes, it supports SPI bus serial interface (SPI mode 0 [CPOL = 0, CPHA = 0]).
  6. What additional features does the M41T93ZQA6F have?
    It includes features such as programmable alarms, square wave output, RESET (RST) output, watchdog timer, programmable 8-bit counter/timer, and 7 bytes of battery-backed user SRAM.
  7. How does the M41T93ZQA6F handle power failures?
    It automatically switches to a battery or supercapacitor backup during power failures.
  8. What is the operating temperature range of the M41T93ZQA6F?
    The operating temperature range is –40 °C to +85 °C.
  9. Is the M41T93ZQA6F RoHS compliant?
    Yes, it is RoHS compliant.
  10. What are some common applications of the M41T93ZQA6F?
    It is used in industrial automation, consumer electronics, automotive systems, medical devices, and IoT devices.

Product Attributes

Type:Clock/Calendar
Features:Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer
Memory Size:7B
Time Format:HH:MM:SS:hh (24 hr)
Date Format:YY-MM-DD-dd
Interface:SPI
Voltage - Supply:2.38V ~ 5.5V
Voltage - Supply, Battery:1.8V ~ 5.5V
Current - Timekeeping (Max):10µA @ 5.5V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:16-VQFN Exposed Pad
Supplier Device Package:16-QFN (4x4)
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Similar Products

Part Number M41T93ZQA6F M41T83ZQA6F M41T93RQA6F M41T93SQA6F
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active
Type Clock/Calendar Clock/Calendar Clock/Calendar Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer
Memory Size 7B 7B 7B 7B
Time Format HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr)
Date Format YY-MM-DD-dd YY-MM-DD-dd YY-MM-DD-dd YY-MM-DD-dd
Interface SPI I²C, 2-Wire Serial SPI SPI
Voltage - Supply 2.38V ~ 5.5V 2.38V ~ 5.5V 2.7V ~ 5.5V 3V ~ 5.5V
Voltage - Supply, Battery 1.8V ~ 5.5V 2V ~ 5.5V 1.8V ~ 5.5V 1.8V ~ 5.5V
Current - Timekeeping (Max) 10µA @ 5.5V 10µA @ 5.5V 10µA @ 5.5V 10µA @ 5.5V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 16-VQFN Exposed Pad 16-VQFN Exposed Pad 16-VQFN Exposed Pad 16-VQFN Exposed Pad
Supplier Device Package 16-QFN (4x4) 16-QFN (4x4) 16-QFN (4x4) 16-QFN (4x4)

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