RV-1805-C3

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

Name: RV-1805-C3 Extreme-Low-Power I²C RTC Module
Brand: Micro Crystal
SKU: RV-1805-C3

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.

Interface

I²C (400 kHz)

Time-keeping Current

~60 nA typ

Crystal

Integrated 32.768 kHz

Features

Alarm, timer, WDT, trickle charge

Features

~60 nA time-keeping current (typ)
Integrated 32.768 kHz crystal
I²C interface (400 kHz)
Alarm, countdown timer, periodic IRQ, WDT
Trickle charger + auto backup switchover
NRND: prefer RV-3028-C7 for new designs

Specifications

Interface	I²C (400 kHz)
Time-keeping Current	~60 nA typ
Crystal	Integrated 32.768 kHz
Features	Alarm, timer, WDT, trickle charge
Status	NRND (not for new designs)
Package	C3 (leadless ceramic)

Applications

RTCUltra-Low-PowerI²CNRNDMicro Crystal

Order Info

Stock, pricing, lead time, and samples for RV-1805-C3 — 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-1805-C3 replaces these parts

Engineers use RV-1805-C3 as a second source or alternative for the parts below. Open each for compatibility notes (drop-in / software / alternative) and an RFQ.

AB1805 · AM1805 Software-compatible

Abracon · Ambiq

View cross-reference →

RV-1805-C3 — Frequently Asked Questions

Where can I buy RV-1805-C3?

JLink Technology is an authorized Micro Crystal distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for RV-1805-C3 and we will respond with pricing and lead time within one business day.

Is RV-1805-C3 in stock?

Stock and lead time for RV-1805-C3 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-1805-C3 datasheet and samples?

Yes. As an authorized Micro Crystal distributor, JLink Technology can provide the official RV-1805-C3 datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for RV-1805-C3?

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-1805-C3?

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-1805-C3 where one exists, and quote pricing, stock, and lead time.

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