DIMENSIONS

RV-3149-C3

Real-Time Clock Module with SPI-Bus

All dimensions in mm typical

DESCRIPTION

The RV-3149-C3 is a SMT Real-Time Clock Module that incorporates

an integrated CMOS circuit together with an XTAL. It operates under

vacuum in a hermetically sealed ceramic package with metal lid.

APPLICATIONS

IoT

Metering

Industrial

Portables

Automotive

Health Care

Package:

Recommended Solder Pad:

0,8

3,7

0,3

0,8 0,8 0,8 0,8

0,5

3,7

1

2

9

8

5

4

6

7

3

10

FEATURES

Low power consumption: 800 nA @ 3 V.

Wide operating voltage range: 1.3 V to 5.5 V.

Time accuracy, temp. compensated: Option A: -40 to +85°C, ±6 ppm,

Option B: -40 to +85°C, ±25 ppm.

Extended operating temperature range: -40 to +125°C.

Automatic Backup Switchover and Trickle Charger function.

Provides year, month, weekday, date, hours, minutes and seconds.

Timer and Alarm functions.

Clock output frequencies: 32.768 kHz, 1024 Hz, 32 Hz, 1 Hz.

2 bytes non-volatile user memory, 8 bytes user RAM.

SPI-bus interface: 4-wire, 1 MHz.

100% Pb-free, RoHS-compliant.

Automotive qualification according to AEC-Q200 available.

BLOCK DIAGRAM

OUTPUT

CONTROL

OSC

SPI-BUS

4-wire

Serial

Interface

DIVIDER

and

TEMPERATURE

COMPENSATION

LOGIC

SYSTEM

CONTROL

LOGIC

TEMPERATURE

SENSOR

32.768 kHz

Xtal

CLKOUT

CLKOE

INT

POWER

CONTROL

Control_1

Control_Status

29

00

Year Alarm

Month Alarm

Weekday Alarm

Date Alarm

Hours Alarm

Minutes Alarm

Year

Month

Weekday

Date

Hours

Minutes

Seconds

Control_INT-Flags

Control_INT

2 Bytes of

user EEPROM

Temperature °C

Timer High

Timer Low

Seconds Alarm

8 Bytes of

user RAM

28

20

XTAL T0

XTAL Coef

EE Ctrl

38

XTAL Offset

3F

Control_Reset

30

08

10

18

3

1

7

2

9

6

CE

8

SDO

5

SCL

4

SDI

10