Analog Devices DS1391U-18+ Real Time Clocks
IC RTC CLK/CALENDAR SPI 10-USOP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
DS1391U-18+
Base Model
Detailed Description
IC RTC CLK/CALENDAR SPI 10-USOP
Package
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Lifecycle Status
Active
Datasheet
DS1391U-18+ Datasheet
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Technical Specifications
Analog Devices DS1391U-18+ Real Time Clocks technical specifications.
General
Interface
SPI
Package / Case
10-MSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.71V ~ 1.89V
Features
Alarm, Leap Year, Square Wave Output, Trickle-Charger
Package
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Type
Clock/Calendar
Time Format
HH:MM:SS:hh (12/24 hr)
Date Format
YY-MM-DD-dd
Alternate Parts Comparison (DS1391U-18+ vs DS1391U-33 vs DS1391U-3+T&R vs DS1391U-3+)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Supply Voltage | 1.71V ~ 1.89V | 2.97V ~ 5.5V | 2.7V ~ 3.3V | 2.7V ~ 3.3V |
| Interface | SPI | SPI | SPI | SPI |
| Current Timekeeping Max | 100µA @ 1.71V ~ 1.89V | 175µA @ 2.97V ~ 5.5V | 125µA @ 2.7V ~ 3.3V | 125µA @ 2.7V ~ 3.3V |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Features | Alarm, Leap Year, Square Wave Output, Trickle-Charger | Alarm, Leap Year, Square Wave Output, Trickle-Charger | Alarm, Leap Year, Square Wave Output, Trickle-Charger | Alarm, Leap Year, Square Wave Output, Trickle-Charger |
| Time Format | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Voltage Supply Battery | 1.3V ~ 3.7V | 1.3V ~ 5.5V | 1.3V ~ 3.7V | 1.3V ~ 3.7V |
| Action |
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