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
Series
DS1391U
Interface
SPI
RoHS
Yes
Package / Case
10-MSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.71V ~ 1.89V
Lifecycle Status
Active
Features
Alarm, Leap Year, Square Wave Output, Trickle-Charger
Package
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Related Parts Comparison (DS1391U-18+ vs DS1391U-33 vs DS1391U-3+T&R vs DS1391U-3+)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Series | DS1391U | DS1391U | DS1391U | DS1391U |
| 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 |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Obsolete | Active | Active |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| 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 |
| Action |
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