RV-3028-C7Extreme Low Power RTC Module
DIMENSIONS
Package:

Recommended Solder Pad:
0,93,20,90,90,90,80,40,51,50,80,50,40,8 max

0,153,2Metal lid is connected to VSS (pin #5)
All dimensions in mm typical

APPLICATIONSDESCRIPTION

IoTMetering
Industrial
Automotive
Health Care
Wearables, Portables

The RV-3028-C7 is a SMD 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
Extreme low power consumption: 45 nA @ 3 V.
Wide operating voltage range: 1.1 V to 5.5 V.
Time accuracy: Factory calibrated to ±1 ppm @ 25°C
User progr. password for write protection of time and configuration.
Non-volatile configuration settings with user programmable offset value.
Automatic Backup Switchover and Trickle Charger function.
Provides year, month, date, weekday, hours, minutes, seconds, UNIX.
Timer, Alarm and External event input with Time Stamp function.
Clock output: 32.768 kHz, 8192 Hz, 1024 Hz, 64 Hz, 32 Hz, 1 Hz.
43 bytes non-volatile user memory, 2 bytes user RAM.
I2C-bus interface: 400 kHz.
100% Pb-free, RoHS-compliant.
Automotive qualification according to AEC-Q200 available.

BLOCK DIAGRAMVBACKUP
VDD
VSS

SCL
SDA

6POWERCONTROL

7534

I2C-BUSINTERFACEFREQUENCY
OFFSETCOMPENSATIONDIVIDERXTALOSCILLATOR

CLKOUT

INT
EVI

128

INPUT
OUTPUT
CONTROLRESETSYSTEMCONTROL
LOGIC

RAMSeconds
Minutes
Hours
Weekday
DateMonthYear
Minutes Alarm
Hours Alarm
Weekday Alarm
Date Alarm
Timer Value 0Timer Value 1Timer Status 0Timer Status 1StatusControl 1Control 2
GP Bits
CLKIM
Event Control
Count TS
Seconds TS
Minutes TS
Hours TS
Date TSMonth TSYear TS
UNIX Time 0
UNIX Time 1
UNIX Time 2
UNIX Time 3
User RAM 100

RAMUser RAM 2
PW 0
PW 1
PW 2PW 3
EEADDR
EEDATA
EECMD
ID

2028

Configuration EEPROM
with RAM mirror

0F
10EEPWE
EEPW 0EEPW 1EEPW 2EEPW 3
EEPROM Clkout
EEPROM Offset
EEPROM Backup
User EEPROM

43 Bytes ofuser EEPROM(00h – 2Ah)
1F

3037

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

1.1

5.5

V

Supply voltage

VDD

I C-bus active

1.2

5.5

V60nA

2I2C-bus inactive,

Current consumption
Time keeping mode

IDDO

CLKOUT frequency

FCLKOUT

Programmable

32768...to...1HzTime accuracy

Δt/t@ 25°C±1ppm

Aging first year max.

ΔF/F

@ 25°C±3ppm

ENVIRONMENTAL
CHARACTERISTICSTERMINATIONS AND
PROCESSING

Conditions

Max. Dev.

Storage temperature range–55 to +125°C

TA Operating temperature range–40 to +85°C

Shock resistance

ΔF/F 5000 g, 0.3 ms, ½ sine

±5 ppmVibration resistance

ΔF/F±5 ppm

20 g / 10–2000 Hz

Package

Termination

Processing

SON-8 (DFN-8)

Au flashed pads

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

FREQUENCY TEMPERATURE
ΔF/F [ppm]

CHARACTERISTICSPIN CONNECTIONSTOP VIEW

200-20-40-60-80-100-120-140-160-60

T0 = 25°C ±5°C

–0.035*(T-T0)2 ppm ±10%Tuning Fork Crystal-40-20

Product Date Code#8

#5M039A13028#1#4Part Designation
Pin 1 Index

ORDERING INFORMATION45

VDD = 3 V02040Pin123456786080100

T[°C]Connection
CLKOUT Clock Output
INTInterrupt Output
SCLSerial Clock Input
SDA
Serial Data
VSSGround
VBACKUP Backup Supply Voltage
VDD
Power Supply Voltage
EVI
Event Input

RV - 3028 - C7 TA QC

Product type

Qualification
QC = Commercial Grade (Standard)
QA = Automotive Grade AEC-Q200

Package size
C7 = 3.2 x 1.5 x 0.8 mm

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

RTC module

A unique part number will be generated for each product specification, i.e:
20xxxx-MG011'000 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
sales@microcrystal.com
www.microcrystal.com

Version 1.3/09.2021