DS1391U-18+
IC RTC CLK/CALENDAR SPI 10-USOP

Clock Timing Real Time Clocks
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Active
$3.82 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Analog Devices Inc./Maxim Integrated |
| Model | DS1391U-18+ |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 1.71V ~ 1.89V |
| Supplier Device Package | 10-uMAX/uSOP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
DS1391U-18+ by Analog Devices Inc./Maxim Integrated is a commonly used electronic component in the Clock Timing Real Time Clocks category. Available in 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) package with -40°C ~ 85°C operating temperature range. Contact us for datasheet, pricing, and availability.
📖 Technical Guides for DS1391U-18+
ESP32 vs STM32: Which MCU is Right for Your Project?
Components Guide
Chinese MCU Alternatives: GD32, AT32, APM32 & More — 40-80% Cost Savings vs ST/NXP/Microchip
Components Guide
Op-Amp Selection Guide: 8 Most Popular Types and When to Use Each
Components Guide
LM358 Alternatives & Replacements: Complete Pin-to-Pin Guide
Components Guide
Alternatives & Replacements
View All →ISL1221IUZ-T
IC RTC EVENT REC I2C 10-MSOP
DS1391U-33+T&R
IC RTC CLK/CALENDAR SPI 10-USOP
DS1374U-33
IC RTC BINARY CNT I2C 10-USOP
DS1374U-33+T&R
IC RTC BINARY CNT I2C 10-USOP
ISL1220IUZ
RTC, NON-VOLATILE
ISL1209IU10Z
IC RTC EVENT REC I2C 10-MSOP
All Technical Specifications
| Type | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output, Trickle-Charger |
| Interface | SPI |
| Date Format | YY-MM-DD-dd |
| Time Format | HH:MM:SS:hh (12/24 hr) |
| Voltage - Supply | 1.71V ~ 1.89V |
| Voltage - Supply, Battery | 1.3V ~ 3.7V |
| Current - Timekeeping (Max) | 100µA @ 1.71V ~ 1.89V |
Request a Quote
Submit your quantity and details — we will reply within 24 hours.