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Renesas Electronics 1339-31DVGI8 — DC-DC Power Modules

1339-31DVGI8 I2C RTC Clock/Calendar, -40°C to 85°C, 8-TSSOP

MPN1339-31DVGI8
End of Life

Renesas 1339-31DVGI8, I²C Real-Time Clock/Calendar, YY-MM-DD-dd date, HH:MM:SS 12/24 hr time, Alarm, Leap Year, Square Wave Output, Trickle-Charger, 3.3V–5.5V supply, -40°C to 85°C, 8-TSSOP.

$3.34Ref. price · indicative, final on quote
Renesas Electronics 1339-31DVGI8 datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1339-31DVGI8 specifications
ParameterValue
TypeClock/Calendar
MountingSurface Mount
Voltage3.3V ~ 5.5V
Voltage - supply, battery1.3V ~ 3.7V
Current - timekeeping200µA @ 3.63V ~ 5.5V
InterfaceI²C, 2-Wire Serial
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesAlarm, Leap Year, Square Wave Output, Trickle-Charger
Date formatYY-MM-DD-dd
Time formatHH:MM:SS (12/24 hr)
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

RTC with trickle-charger and I²C bus

The Renesas 1339-31DVGI8 is an I²C real-time clock/calendar that tracks time in HH:MM:SS (12/24 hr) and date in YY-MM-DD-dd format. It integrates an alarm, leap-year compensation, a square-wave output, and a trickle-charger for backup-battery management — features that save external components in timekeeping designs for industrial controllers, utility meters, and security panels.

The 8-TSSOP package (3.00 mm width) is a compact surface-mount footprint that fits dense PCBs without consuming board area.

Frequently asked questions

Does 1339-31DVGI8 have a trickle charger feature?

Yes, it includes a trickle-charger for maintaining a backup battery or supercapacitor during main power loss.

What is the current consumption of 1339-31DVGI8?

Timekeeping current is 200µA maximum when powered from 3.63V to 5.5V.

Can 1339-31DVGI8 replace DS1307?

Both are I²C RTCs with similar basic functions, but the 1339-31DVGI8 adds a trickle-charger and operates down to -40°C versus the DS1307's commercial range. Pin compatibility should be verified against the respective datasheets before substitution.