規格
| 屬性 | 價值 |
| Supplier | Rochester Electronics, LLC,Analog Devices Inc./Maxim Integrated |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| Type | Binary Counter |
| Features | Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer |
| TimeFormat | Binary |
| DateFormat | Binary |
| Interface | I²C, 2-Wire Serial |
| Voltage-Supply | 2.97V ~ 5.5V |
| Voltage-SupplyBattery | 1.3V ~ 5.5V |
| Current-Timekeeping(Max) | 175µA @ 2.97V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) |
概述
Description
DS1374U-33+ is a Dallas/Maxim real-time clock (RTC) IC with battery backup and an I2C-compatible serial interface. It keeps accurate calendar/time information (seconds, minutes, hours, day/date, month, year) and can generate alarms and timers, even while the main power is off, thanks to a backup supply (VBAT) and trickle-charge capability to recharge the backup source. The “-33+” suffix indicates 3.3V operation (and RoHS-compliant packaging). It typically includes on-chip RAM or NVRAM for data retention during power loss, and is designed for low-power, timekeeping-critical embedded applications. Common uses include data logging, power-failure clocks, wearables, and utility/metering devices. For exact specifications (voltage ranges, RAM size, alarm/timer features, package options), consult the DS1374U-33+ datasheet.
Pinout
- Pin count: 8 pins (DIP-8/SOIC-8).
- Function: DS1374U-33+ is a 3.3V serial real-time clock/calendar with battery-backed nonvolatile RAM (RTC + NV RAM); provides timekeeping from seconds to year using a 32.768 kHz crystal, with a serial interface.
- Function: DS1374U-33+ is a 3.3V serial real-time clock/calendar with battery-backed nonvolatile RAM (RTC + NV RAM); provides timekeeping from seconds to year using a 32.768 kHz crystal, with a serial interface.
Manufacturer
- Manufacturer: Dallas Semiconductor Corporation (often abbreviated DS), now part of Maxim Integrated (and later Analog Devices).
- What kind of company: A semiconductor company that designs and manufactures integrated circuits (MEMORY/RTCs and other timing/analog devices) for electronics.
- What kind of company: A semiconductor company that designs and manufactures integrated circuits (MEMORY/RTCs and other timing/analog devices) for electronics.
Application
DS1374U-33+ is a real‑time clock with backup power and memory for time-stamped data. Common applications include:
- Data loggers and event time-stamping
- Industrial automation and process control
- Consumer electronics clocks and appliances
- Networking equipment for logs and scheduling
- Automotive instrumentation and telematics
- Smart meters and energy monitoring
- Portable/handheld devices needing accurate time reference
- Any system requiring reliable timekeeping during power loss
- Data loggers and event time-stamping
- Industrial automation and process control
- Consumer electronics clocks and appliances
- Networking equipment for logs and scheduling
- Automotive instrumentation and telematics
- Smart meters and energy monitoring
- Portable/handheld devices needing accurate time reference
- Any system requiring reliable timekeeping during power loss
Package
DS1374U-33+ is in an 8-pin SOIC (small-outline) package; RoHS-compliant.
