Real Time Clock - I2C Bus

RV3029C2

Tel: +44 1460 256 100

Fax: +44 1460 256 101

E-mail: sales@golledge.com

Web: www.golledge.com

03 May 2012

Features

1.20

(max)

5.20

(max)

3.40

(max)

SOLDER PAD LAYOUT

TOP VIEW

2.20

0.60

1.00

0.90

0.40

1.00

PAD

1

2

3

4

5

CONNECTION

Supply (VDD)

Frequency output (CLKOUT)

Not connected

Serial clock input (SCL)

Data (SDA)

PAD

6

7

8

9

10

CONNECTION

Ground

Interrupt output (/INT)

Backup supply

Not connected

CLK output enable (CLKOE)

15

6

10

Option

Codes

RV3029C2

Product

Parameters

Product + option code

Option code X (eg RV3029C2/X) denotes a custom spec.

Ordering Information

Specifications

Block Diagram

The RV3029C2 is a Real-Time-Clock Module with embedded crystal. This

compensated time. The STC (Smart Temperature Compensation) can be

factory calibrated to achieve a very high time-accuracy of ±6ppm from

-40°C to +85°C (option A) and ± 8ppm from -40°C to +125°C (option C).

Beside standard RTC functions, it includes a Backup-Battery Input with

internal switchover function, a programmable trickle-charge circuitry, an

integrated temperature sensor with digital output and offers 8 Bytes RAM

and 2 Bytes EEPROM for customer application.

The calendar function tracks year and leap-year flags. The clock tracks

second, minute and hour in 24-hour format. Programmable alarm setting

and universal timer functions increase flexibility.

Description

Frequencies (selectable):

32.768kHz, 1024Hz, 32Hz & 1Hz



Frequency tolerance @ 25°C:

±10ppm typ, ±20ppm max



Time accuracy:

±3ppm max (0.26s/day) @ 25°C



±6ppm max (0.52s/day), -40+85°C



A

±25ppm max (2.17s/day), -40+85°C



B

±8ppm max (0.70s/day), -40+125°C



D

±30ppm max (2.60s/day), -40+125°C



E

Operating temperature range:

-40 to +85°C



Extended op. temp range:

-40 to +125°C



Storage temperature range:

-55 to +125°C



Supply voltage (V



Time-keeping mode 1.3 ~ 5.5V



Supply current (V

0.80μA typ, 1.0μA max



Shock and vibration resistance:

±5ppm, 5,000g, 0.3ms, ½ sine



±5ppm, 20g, 10.0 ~ 2,000Hz



Soldering condition:

Reflow, 260°C, 20 sec max

