RV-3149-C3Real-Time Clock Module with SPI-Bus
DIMENSIONS
Package:

Recommended Solder Pad:

3,70,8 0,8 0,8 0,80,30,53451098761,40,80,22,50,9 max

3,020,55

10,80,83,7Metal lid is connected to VSS (pin #6)
All dimensions in mm typical

APPLICATIONSDESCRIPTION

IoTMetering
Industrial
Portables
Automotive
Health Care

The RV-3149-C3 is a SMT Real-Time Clock Module that incorporates
an integrated CMOS circuit together with an XTAL. It operates undervacuum in a hermetically sealed ceramic package with metal lid.
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

32.768 kHz
Xtal
DIVIDER
andTEMPERATURE
COMPENSATION
LOGIC

OSC
CLKOUT
CLKOE
INT
VDD
VBACKUP
VSS

CE
SCL
SDO
SDI

317OUTPUT
CONTROL

29POWERCONTROL684510SYSTEMCONTROL
LOGIC

SPI-BUS
4 -wireSerialInterface

TEMPERATURESENSOR

Control_1
Control_INT
Control_INT-Flags
Control_Status
Control_Reset
Seconds
Minutes
Hours
Date
WeekdayMonthYear
Seconds Alarm
Minutes AlarmHours Alarm
Date Alarm
Weekday Alarm
Month Alarm
Year Alarm
Timer Low
Timer High
Temperature °C
2 Bytes ofuser EEPROM
EE Ctrl
XTAL Offset
XTAL Coef
XTAL T0
8 Bytes ofuser RAM

0008

101820282930383F

ELECTRICAL CHARACTERISTICS
AT 25°C
More detailed information can be found in the
Application Manual.

SymbolCondition

Min. Typ. Max Unit

Supply voltage

VDD

Time keeping

1.3

5.5

V

Supply voltage

VDD

Thermom. active

2.1

5.5

V

Current consumption
Time keeping mode

IDDO

SPI-bus inactive,
VDD = 3 V

800

1000nATime acc. Opt. A / B

Δt/t–40 to +85°C±6 / ±25ppm

Aging first year max.

ΔF/F

@ 25°C±3ppm

ENVIRONMENTAL
CHARACTERISTICSConditions
Storage temp. range–55 to +125°C

TA Operating temperature range–40 to +85°C

TB Extended oper. temp. range–40 to +125°C

Shock resistance

ΔF/F 5000 g, 0.3 ms, ½ sine

Vibration resistanceΔF/F

TERMINATIONS AND
PROCESSINGFREQUENCY TEMPERATURE
CHARACTERISTICS

Processing

SON-10Au flashed pads

IPC/JEDEC J-STD-020C
260°C / 20 - 40 s

50

T0 = 25°C ±5°C0Δt/t [ppm]±5 ppmTermination

Opt. A
Opt. B-50

Time accuracy-100–0.035*(T-T0)2 ppm ±10%-150-200-250-350-50

Xtal 32.768 kHz

Tuning Fork Crystal-30-1010

Product Date Code
#10

#6

M826A13149#1#5Part Designation
Pin 1 Index

ORDERING INFORMATION

20 g / 10–2000 Hz±5 ppmPackage-300

PIN CONNECTIONSTOP VIEW

Max. Dev.

3050

Pin123456789107090110

130 T[°C]

Connection

CLKOE
VDD
CLKOUTSCLSDOVSSINTCEVBACKUPSDI

Clock Output Enable
Power Supply VoltageClock Output
Serial Clock Input
Serial Data Output
GroundInterrupt Output
Chip Enable
Backup Supply Voltage
Serial Data Input

RV - 3149 - C3 Option A TA QC
Qualification
QC = Commercial Grade (Standard)
QA = Automotive Grade AEC-Q200

RTC module
Product typePackage size
C3 = 3.7 x 2.5 x 0.9 mm
Time accuracy
Option A = ±6 ppm @ -40°C to +85°C
Option B = ±25 ppm @ -40°C to +85°C

Temperature range
TA = -40 to +85°C (Standard)
TB = -40 to +125°C

A unique part number will be generated for each product specification, i.e:
20xxxx-MG01
1'000 pcs (in 12 mm tape on 7" reel)
20xxxx-MG03
3'000 pcs (in 12 mm tape on 7" reel)
All specifications subject to change without notice.

Micro Crystal AG
Muehlestrasse 14
CH-2540 Grenchen
Switzerland

Phone +41 32 655 82 82
Fax+41 32 655 82 83
sales@microcrystal.com
www.microcrystal.com
Version 5.0/07.2018