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Product Detailed Parameters
- Description：IC RTC CLK/CALENDAR I2C 8SOIC
- Series：-
- Package：Tube
- Mfr：Texas Instruments
- Type：Clock/Calendar
- Features：Leap Year, Square Wave Output, Trickle-Charger
- Memory Size：-
- Time Format：HH:MM:SS (24 hr)
- Date Format：YY-MM-DD-dd
- Interface：I2C, 2-Wire Serial
- Voltage - Supply：3V ~ 3.6V
- Voltage - Supply, Battery：1.4V ~ 3.6V
- Current - Timekeeping (Max)：100µA @ 3.3V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
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Overview
The BQ32000D is a low-power CMOS microprocessor peripheral real-time clock (RTC) manufactured by Texas Instruments. It provides timekeeping and a 100-year calendar with leap year compensation, supporting both 12-hour and 24-hour time formats alongside YY-MM-DD-day-of-week date formats. The device operates on a single 3V to 3.6V supply with a maximum current consumption of 100µA at 3.3V. It features an I²C serial bus interface for communication and includes 114 bytes of general-purpose non-volatile memory. The component is housed in an 8-pin SOIC package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrated 100-year calendar with automatic leap year adjustment
- I²C serial bus interface for system connectivity
- 114 bytes of battery-backed non-volatile RAM
- Three independently maskable interrupt sources
Applications
- Microprocessor-based systems requiring precise timekeeping
- Data logging equipment needing timestamp capabilities
- Battery-powered portable devices with low power constraints
Procurement Notes
Verify the specific suffix against the manufacturer's datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the target I²C bus voltage levels and check for RoHS compliance status as indicated in official documentation before procurement.
Selection Notes
Select this component when a dedicated RTC with integrated non-volatile storage is required. The BQ32000D is suitable for designs needing a 100-year calendar and multiple interrupt sources without external memory components. Confirm that the 8-pin SOIC footprint fits the PCB layout constraints.
Part Context
The BQ32000D belongs to the BQ32000 series of real-time clocks from Texas Instruments. This series is designed as a drop-in replacement for older RTC solutions, offering enhanced features such as larger non-volatile memory and flexible interrupt configurations compared to legacy parts like the BQ3285.
Replacement Considerations
Datasheets list BQ32000DR and BQ32000DRG4 as related part numbers within the same family. Verify pinout and electrical characteristics against the specific datasheet revision before substituting.
