RV-3028-C7 In Stock

RV-3028-C7 Extreme Low Power I²C RTC Module

Name: RV-3028-C7 Extreme Low Power I²C RTC Module
Brand: Micro Crystal
SKU: RV-3028-C7

The RV-3028-C7 is one of the industry's most power-efficient RTC modules, drawing typically just ~45 nA. It integrates a tuned crystal, offers an I²C interface, and includes alarm, timer, and event logging — ideal for coin-cell powered wearables, meters, and IoT applications needing long battery life.

Type

RTC Module

Current (typ)

~45 nA

Interface

I²C

Crystal

Integrated 32.768 kHz

Features

Typical ~45 nA current (industry-leading)
Integrated tuned 32.768 kHz crystal
I²C interface
Alarm / countdown timer / event log
Wide 1.1V ~ 5.5V supply
Tiny 3.2 × 1.5 × 0.8 mm package

Specifications

Type	RTC Module
Current (typ)	~45 nA
Interface	I²C
Crystal	Integrated 32.768 kHz
Functions	Alarm, Timer, Event Log
Supply Voltage	1.1V ~ 5.5V
Package	3.2 × 1.5 mm (C7)

Applications

RTCReal-Time ClockUltra-Low PowerI²CTiming

Order Info

Stock, pricing, lead time, and samples for RV-3028-C7 — we reply within one business day.

Request Quote Request datasheet / sample

Micro Crystal

Switzerland

Swiss Ultra-Low Power RTC & Quartz Devices

View all Micro Crystal products → Official Micro Crystal site

RV-3028-C7 replaces these parts

Engineers use RV-3028-C7 as a second source or alternative for the parts below. Open each for compatibility notes (drop-in / software / alternative) and an RFQ.

DS3231 · PCF8563 Functional alternative

Maxim/ADI · NXP

View cross-reference →

PCF85063A Functional alternative

NXP

View cross-reference →

SD2405AL / SD2405 Functional alternative

whwave

View cross-reference →

Selection guides & comparisons

Guide

I²C Real-Time Clock (RTC) Selection: Ultra-Low-Power vs Precision

Comparison

RV-3028-C7 vs DS3231 vs PCF8563: I²C RTC Comparison

RV-3028-C7 — Frequently Asked Questions

Where can I buy RV-3028-C7?

JLink Technology is an authorized Micro Crystal distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for RV-3028-C7 and we will respond with pricing and lead time within one business day.

Is RV-3028-C7 in stock?

Stock and lead time for RV-3028-C7 vary by quantity. Send us your required quantity via the RFQ form and we will confirm current availability and delivery schedule.

Can I get the RV-3028-C7 datasheet and samples?

Yes. As an authorized Micro Crystal distributor, JLink Technology can provide the official RV-3028-C7 datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for RV-3028-C7?

We support orders from prototype samples to mass production. Tell us your target volume in the RFQ and we will quote accordingly.

Is there a pin-compatible alternative or second source for RV-3028-C7?

Tell us the part you need to replace and your application. As a multi-line authorized distributor, JLink Technology can suggest a verified cross-reference or second source related to RV-3028-C7 where one exists, and quote pricing, stock, and lead time.

Related Products

CM8V-T1A In Stock

CM8V-T1A 32.768kHz Tuning-Fork SMD Crystal

The CM8V-T1A is a 32.768kHz tuning-fork SMD quartz crystal from Micro Crystal in a tiny 2.0×1.2×0.6mm package. With a ±20ppm frequency tolerance (±10ppm option), a 70kΩ max ESR, and multiple load-capacitance options (CL 4.0/7.0/9.0/12.5pF) to match the host oscillator, over −40~+85°C, it serves as the clock source for an RTC/MCU low-speed external oscillator (LSE) — for wearables, IoT, and metering. Note: this is a bare crystal, a different category from our RV-xxxx RTC modules (which embed their own crystal).

Crystal32.768kHzTuning Fork

Details Request Quote

RV-8803-C7 In Stock

RV-8803-C7 High-Accuracy I²C RTC Module

The RV-8803-C7 is a high-accuracy I²C real-time-clock module from Micro Crystal with a built-in 32.768kHz DTCXO, ±3ppm accuracy (−40~85°C), ~240nA timekeeping at 3V, a wide 1.5~5.5V supply, plus alarm, timer, interrupt output, and a time-stamp event input.

RTCI²CDTCXO

Details Request Quote

RV-1805-C3

RV-1805-C3 Extreme-Low-Power I²C RTC Module

The RV-1805-C3 is an extreme-low-power RTC module from Micro Crystal with an integrated 32.768kHz crystal, drawing as little as ~60nA (typ) in time-keeping, with an I²C (400kHz) interface, alarm, countdown timer, periodic interrupt and watchdog, plus an on-chip trickle charger and automatic backup-supply switchover — for battery/coin-cell metering, data loggers, and IoT sensor nodes. Note: the manufacturer marks this part NRND (not recommended for new designs); for new designs consider the in-stock RV-3028-C7.

RTCUltra-Low-PowerI²C

Details Request Quote