Texas Instruments BQ4802YDWR
- Part Number:
- BQ4802YDWR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3004053-BQ4802YDWR
- Description:
- Y2K-Compliant Parallel RTC with CPU Supervisor and External NVSRAM Control, 5V Vcc
- Datasheet:
- bq4802y
Description
The bq4802Y/bq4802LY real-time clock is a low-power microprocessor peripheral that integrates a time-of-day clock, a century-based calendar, and a CPU supervisor. It is available in 28-pin SOIC, TSSOP, and SNAPHAT package options, and requires the bq48SH-28x6 to complete the two-piece module. The bq4802Y/bq4802LY is ideal for applications such as fax machines, copiers, industrial control systems, point-of-sale terminals, data loggers, and computers.
Features
Real-time clock counts seconds through centuries in BCD format
On-chip battery-backup switchover circuit with nonvolatile control for external SRAM
Less than 500 nA of clock operation current in backup mode
Microprocessor reset with push-button override
Independent watchdog timer with programmable time-out period
Power-fail interrupt warning
Programmable clock alarm interrupt active in battery-backup mode
Programmable periodic interrupt
Battery-low warning
Applications
Telecommunications base stations
Servers
Handheld data collection equipment
Medical equipment
Handheld instrumentation
Test equipment
The bq4802Y/bq4802LY real-time clock is a low-power microprocessor peripheral that integrates a time-of-day clock, a century-based calendar, and a CPU supervisor. It is available in 28-pin SOIC, TSSOP, and SNAPHAT package options, and requires the bq48SH-28x6 to complete the two-piece module. The bq4802Y/bq4802LY is ideal for applications such as fax machines, copiers, industrial control systems, point-of-sale terminals, data loggers, and computers.
Features
Real-time clock counts seconds through centuries in BCD format
On-chip battery-backup switchover circuit with nonvolatile control for external SRAM
Less than 500 nA of clock operation current in backup mode
Microprocessor reset with push-button override
Independent watchdog timer with programmable time-out period
Power-fail interrupt warning
Programmable clock alarm interrupt active in battery-backup mode
Programmable periodic interrupt
Battery-low warning
Applications
Telecommunications base stations
Servers
Handheld data collection equipment
Medical equipment
Handheld instrumentation
Test equipment
Texas Instruments BQ4802YDWR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments BQ4802YDWR.
- Factory Lead Time6 Weeks
- Lifecycle StatusACTIVE (Last Updated: 6 days ago)
- Contact PlatingGold
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case28-SOIC (0.295, 7.50mm Width)
- Number of Pins28
- Weight730.794007mg
- Operating Temperature0°C~70°C
- PackagingTape & Reel (TR)
- JESD-609 Codee4
- FeatureAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations28
- ECCN CodeEAR99
- HTS Code8542.39.00.01
- SubcategoryTimer or RTC
- TechnologyCMOS
- Voltage - Supply4.5V~5.5V
- Terminal PositionDUAL
- Peak Reflow Temperature (Cel)260
- Supply Voltage5V
- Terminal Pitch1.27mm
- Base Part NumberBQ4802
- Pin Count28
- Operating Supply Voltage5V
- Power Supplies5V
- InterfaceParallel
- Clock Frequency0.032MHz
- Supply Current-Max9mA
- Logic FunctionClock
- Number of Timers1
- Time FormatHH:MM:SS (12/24 hr)
- Date FormatYY-MM-DD-dd
- Current - Timekeeping (Max)1.5mA Typ @ 4.5 V~5.5 V
- Time-MinSECONDS
- Interrupt CapabilityY
- Voltage - Supply, Battery2.4V~4V
- VolatileNO
- Height2.65mm
- Length17.9mm
- Width7.5mm
- Thickness2.35mm
- Radiation HardeningNo
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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