Analog Devices DS1308U-18+ Real Time Clocks
IC RTC CLK/CALENDAR I2C 8-UMAX
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
DS1308U-18+
Detailed Description
IC RTC CLK/CALENDAR I2C 8-UMAX
Package
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Key Features
Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
DS1308U-18+ Datasheet
Quick Jump:
Technical Specifications
Analog Devices DS1308U-18+ Real Time Clocks technical specifications.
General
Series
DS1308U
Interface
I²C, 2-Wire Serial
Memory Size
56B
RoHS
Yes
Package / Case
8-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.71V ~ 5.5V
Lifecycle Status
Active
Features
Leap Year, NVSRAM, Square Wave
Related Parts Comparison (DS1308U-18+ vs DS1372U+T&R vs DS1371U+T&R vs DS1337U+T&R)
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 | |
|---|---|---|---|---|
| Package / Case | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP |
| 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 ~ 5.5V | 2.4V ~ 5.5V | 1.7V ~ 5.5V | 1.8V ~ 5.5V |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Lifecycle Status | Active | Active | Active | Active |
| Current Timekeeping Max | 100µA @ 200µA @ 1.89V ~ 5.5V | 0.8µA @ 2.4V ~ 5.5V | 1.3µA @ 1.7V ~ 5.5V | 0.6µA @ 1.3V ~ 1.8V |
| Date Format | YY-MM-DD-dd | Binary | Binary | YY-MM-DD-dd |
| Features | Leap Year, NVSRAM, Square Wave | Alarm, Square Wave Output, Watchdog Timer | Alarm, Square Wave Output, Watchdog Timer | Alarm, Leap Year, Square Wave |
| Time Format | HH:MM:SS (12/24 hr) | Binary | Binary | HH:MM:SS (12/24 hr) |
| Type | Clock/Calendar | Binary Counter | Binary Counter | Clock/Calendar |
| Series | DS1308U | DS1372U+ | DS1371U | -- |
| Action |
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