Datasheet Texas Instruments BQ4845 — Datenblatt

HerstellerTexas Instruments
SerieBQ4845
Datasheet Texas Instruments BQ4845

RTC IC W NVSRAM-Steuerung, Watchdog-Timer, uP-Reset, Interrupts und Warnung vor niedrigem Batteriestand

Datenblätter

Parallel RTC With CPU Supervisor datasheet
PDF, 1.6 Mb, Datei veröffentlicht: Sep 5, 1999
Auszug aus dem Dokument

Preise

Status

BQ4845P-A4BQ4845S-A4BQ4845S-A4G4BQ4845S-A4NBQ4845S-A4NG4BQ4845S-A4NTRBQ4845S-A4NTRG4BQ4845S-A4TRBQ4845S-A4TRG4
Lifecycle StatusLifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)Lifebuy (Manufacturer has announced that the device will be discontinued, and a lifetime-buy period is in effect)NRND (Not recommended for new designs)NRND (Not recommended for new designs)
Manufacture's Sample AvailabilityNoNoNoNoNoNoNoNoNo

Verpackung

BQ4845P-A4BQ4845S-A4BQ4845S-A4G4BQ4845S-A4NBQ4845S-A4NG4BQ4845S-A4NTRBQ4845S-A4NTRG4BQ4845S-A4TRBQ4845S-A4TRG4
N123456789
Pin282828282828282828
Package TypeNDWDWDWDWDWDWDWDW
Industry STD TermPDIPSOICSOICSOICSOICSOICSOICSOICSOIC
JEDEC CodeR-PDIP-TR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-G
Package QTY1320202020100010001000
CarrierTUBETUBETUBETUBETUBELARGE T&RLARGE T&RLARGE T&R
Device Marking4845P4845S4845S4845S-N-A44845S-N4845S-N4845S
Width (mm)13.717.57.57.57.57.57.57.57.5
Length (mm)36.3217.917.917.917.917.917.917.917.9
Thickness (mm)5.082.352.352.352.352.352.352.352.35
Pitch (mm)2.541.271.271.271.271.271.271.271.27
Max Height (mm)5.082.652.652.652.652.652.652.652.65
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Öko-Plan

BQ4845P-A4BQ4845S-A4BQ4845S-A4G4BQ4845S-A4NBQ4845S-A4NG4BQ4845S-A4NTRBQ4845S-A4NTRG4BQ4845S-A4TRBQ4845S-A4TRG4
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantNot Compliant
Pb FreeYesNo

Anwendungshinweise

  • U-502 Time-Base Oscillator for RTC IC
    PDF, 313 Kb, Datei veröffentlicht: 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 Subsystem
    PDF, 332 Kb, Datei veröffentlicht: 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

Modellreihe

Herstellerklassifikation

  • Semiconductors> Clock and Timing> Real-time Clocks