BQ32000DR

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BQ32000DR

IC RTC CLK/CALENDAR I2C 8-SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Type Clock/Calendar
Features Leap Year, Square Wave Output, Trickle-Charger
TimeFormat HH:MM:SS (24 hr)
DateFormat YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage-Supply 3V ~ 3.6V
Voltage-SupplyBattery 1.4V ~ 3.6V
Current-Timekeeping(Max) 100µA @ 3.3V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The BQ32000DR is a real-time clock (RTC) integrated circuit developed by Texas Instruments. It is designed to keep accurate time and date information with a low power consumption profile, making it suitable for battery-operated devices. The BQ32000DR operates with a supply voltage range of 1.8V to 5.5V, supporting various applications like consumer electronics, industrial systems, and portable devices.
Key features include a 12/24-hour format, programmable interrupts, and the ability to interface via I2C communication. The chip includes a built-in oscillator and provides timekeeping even during power outages, thanks to its integrated battery backup. It also offers features such as temperature compensation for enhanced accuracy.
The BQ32000DR is commonly used in applications requiring precise timekeeping, such as clocks, timers, and scheduling systems, and is suitable for both hobbyist projects and professional designs. Its compact size and efficiency make it a popular choice in the market.

Features

The BQ32000DR is a real-time clock (RTC) with the following key features:
1. Timekeeping Accuracy: It maintains accurate timekeeping with a precision of ±2 minutes per year.
2. Wide Voltage Range: Operates within a voltage range of 1.8V to 5.5V, making it suitable for various applications.
3. Low Power Consumption: Designed for low power usage, ideal for battery-operated devices.
4. I2C Interface: Utilizes a two-wire I2C interface for communication, allowing easy integration with microcontrollers.
5. Built-in Oscillator: Includes an integrated crystal oscillator, simplifying design and reducing external component needs.
6. Alarm Functions: Supports programmable alarms and periodic interrupts.
7. Timekeeping in Power Failure: Features a backup battery input to maintain timekeeping during power outages.
8. Calendar Functionality: Capable of storing date and time, including leap year adjustment.
These features make the BQ32000DR suitable for a wide range of applications, including consumer electronics, industrial automation, and smart devices.

Package

The BQ32000DR is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) type. This package is designed for surface mounting and is suitable for compact applications in electronic circuits.

Pinout

The BQ32000DR is a real-time clock (RTC) IC from Texas Instruments, featuring a 20-pin TSSOP package.
### Pin Count and Functions:
1. VCC (Pin 1): Supply voltage.
2. GND (Pin 2): Ground.
3. SCL (Pin 3): I2C clock input.
4. SDA (Pin 4): I2C data input/output.
5. INT (Pin 5): Interrupt output.
6. OUT (Pin 6): Square wave output.
7. Vbat (Pin 7): Backup battery input.
8. 32K (Pin 8): 32 kHz output.
9. TEST (Pin 9): Test pin, usually connected to GND.
10. TP0-TP5 (Pins 10-15): Test points for testing and calibration.
11. ALM1, ALM0, ALM2 (Pins 16-18): Alarm configuration pins.
12. C1, C2 (Pins 19-20): Capacitors for stabilization.
The BQ32000DR is designed for accurate timekeeping applications, featuring low power consumption and I2C communication for configuration and data access.

Manufacturer

The BQ32000DR is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing a wide range of electronic components, including analog and digital semiconductors, embedded processors, and various integrated circuits. Established in 1930, TI is known for its innovations in the semiconductor industry and serves multiple sectors, including automotive, industrial, communications, and consumer electronics. The BQ32000DR itself is a real-time clock (RTC) device, which is part of TI's extensive portfolio of timing and power management solutions.

Application

The BQ32000DR is a real-time clock (RTC) with a built-in oscillator, primarily used in battery-powered devices for timekeeping applications. Its application areas include consumer electronics (watches, appliances), industrial equipment (automation, data loggers), automotive systems (dashboard clocks, infotainment), and telecommunications (routers, modems). It is also utilized in medical devices for time-sensitive data logging and event tracking.

Equivalent

The BQ32000DR chip, a real-time clock (RTC) with I2C interface, has several equivalent products, including the DS1307, DS3231, and MCP7940M. These alternatives offer similar functionalities like timekeeping, alarms, and battery backup, but with varying features such as temperature compensation and power consumption. Always check specific datasheets for compatibility and performance details.

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