BQ4845S-A4NG4
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- Mfr.Part #
- BQ4845S-A4NG4
- Manufacturer
- Texas Instruments
- Package / Case
- 28-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR PAR 28-SOIC
- Stock
- 36,351
- In Stock ：
- 36,351
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- Manufacturer :
- Texas Instruments
- Product Category :
- Real Time Clocks
- Terminal Pitch :
- 1.27mm
- Number of Terminations :
- 28
- Interface :
- Parallel
- Base Part Number :
- BQ4845
- Time Format :
- HH:MM:SS (12/24 hr)
- Voltage - Supply, Battery :
- 2.3V~4V
- Terminal Position :
- Dual
- Operating Temperature :
- -40°C~85°C
- Time-Min :
- SECONDS
- Voltage - Supply :
- 4.75V~5.5V
- Logic Function :
- Clock
- Number of Timers :
- 1
- Type :
- Clock/Calendar
- JESD-609 Code :
- e4
- Length :
- 17.9705mm
- Packaging :
- Tube
- HTS Code :
- 8542.39.00.01
- Date Format :
- YY-MM-DD-dd
- External Data Bus Width :
- 8
- Mount :
- Surface Mount
- Height Seated (Max) :
- 2.667mm
- Power Supplies :
- 5V
- Radiation Hardening :
- No
- Pin Count :
- 28
- Current - Timekeeping (Max) :
- 1.5mA Typ @ 4.5 V~5.5 V
- Lead Free :
- Lead Free
- ECCN Code :
- EAR99
- Package / Case :
- 28-SOIC (0.295, 7.50mm Width)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Mounting Type :
- Surface Mount
- Feature :
- Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
- Weight :
- 730.794007mg
- Peak Reflow Temperature (Cel) :
- 260
- Clock Frequency :
- 0.032MHz
- Supply Voltage :
- 5V
- RoHS Status :
- ROHS3 Compliant
- Number of Pins :
- 28
- Interrupt Capability :
- Y
- Volatile :
- No
- Contact Plating :
- Gold
- Width :
- 7.5565mm
- Operating Supply Voltage :
- 5V
- Datasheets
- BQ4845S-A4NG4
Real Time Clocks Texas Instruments BQ4845S-A4NG4 Overview
The Texas Instruments BQ4845S-A4NG4 Real Time Clock (RTC) module provides a robust timekeeping solution that integrates seamlessly into a wide array of sophisticated electronic systems. Designed with precision and reliability in mind, this device ensures accurate time and date tracking, including leap year compensation up to the year 2100. Encased in a 28-pin SOIC package, the BQ4845S-A4NG4 is particularly ideal for applications requiring dependable time management over a broad temperature range. This module not only maintains system integrity but also supports battery-backed non-volatile (NV) RAM which is crucial for critical data retention during power loss. Its integration of a crystal oscillator and an embedded microprocessor interface enhances system reliability while simplifying the overall design process, making it a perfect choice for high-volume deployments in commercial and industrial environments.
BQ4845S-A4NG4 Features
The BQ4845S-A4NG4 from Texas Instruments is equipped with several key features that make it an essential component for managing real-time clock functions across various applications:
- Integrated crystal oscillator ensures consistent timekeeping accuracy.
- Parallel interface for straightforward integration with microprocessors.
- Low power consumption with an automatic power-fail detect and switch circuitry.
- Provides battery backup capabilities for non-volatile RAM retention.
- Supports leap year compensation and includes time-of-day alarms.
- Operates across an extended temperature range, suitable for challenging environmental conditions.
BQ4845S-A4NG4 Applications
- Telecommunication Systems: Maintains accurate time stamps for data logging and network time synchronization.
- Industrial Control Systems: Offers reliable timekeeping that is crucial for time-sensitive automated processes.
- Embedded Systems: Ensures system reliability through effective time management, enhancing device autonomy and functionality.
- Utility Metering Devices: Provides precise time tracking for usage metering and billing cycles.
- Consumer Electronics: Integral in devices requiring reliable timekeeping such as smart home controllers and wearable technology.
- Office Electronic Equipment: Synchronizes time across multiple devices, ensuring consistent performance in business operations.
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