Datasheet Texas Instruments BQ4845S-A4TRG4
| Manufacturer | Texas Instruments |
| Series | BQ4845 |
| Part Number | BQ4845S-A4TRG4 |
RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning 28-SOIC 0 to 70
Datasheets
Parallel RTC With CPU Supervisor datasheet
PDF, 1.6 Mb, File published: Sep 5, 1999
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Status
| Lifecycle Status | NRND (Not recommended for new designs) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 28 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Width (mm) | 7.5 |
| Length (mm) | 17.9 |
| Thickness (mm) | 2.35 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2.65 |
| Mechanical Data | Download |
Eco Plan
| RoHS | Not Compliant |
| Pb Free | No |
Application Notes
- U-502 Time-Base Oscillator for RTC ICPDF, 313 Kb, File published: Sep 5, 1999
Time-Base Oscillator for RTC ICs.The operation of the time-base oscillator is critical to the timekeeping functions of the bq3285, bq4285, and bq4845 series of real-time-clocks (RTCs). This application note describes some basic characteristics of the piezoelectric crystal and the on-chip crystal oscillator circuitry designed into these RTC series. It also includes suggestions for achieving timek - U-500 Using the bq4845 for a Low-Cost RTC/NVSRAM SubsystemPDF, 332 Kb, File published: Sep 5, 1999
Using the bq4845 for a Low-Cost RTC/NVSRAM Subsystem.The bq4845 combines on one IC a low-power real-time clock (RTC), a microcontroller supervisor, and a nonvolatile control circuit for static RAM. The part is the basis of a low-cost, reliable RTC plus nonvolatile SRAM subsystem for many embedded applications. This application note discusses the key aspects of bq4845 operation: component sele
Model Line
Series: BQ4845 (9)
Manufacturer's Classification
- Semiconductors > Clock and Timing > Real-time Clocks
Other Names:
BQ4845SA4TRG4, BQ4845S A4TRG4
