DIMENSIONS
RV-3028-C7
Extreme Low Power RTC Module
DESCRIPTION
The RV-3028-C7 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
Automotive
Health Care
Wearables, Portables
Package: Recommended Solder Pad:
0,8 max
0,15
0,9
3,2
0,4
1,5
0,5
3,2
0,9 0,9 0,9
0,5
0,8
0,8
0,4
FEATURES
Extreme low power consumption: 40 nA @ 3 V.
Wide operating voltage range: 1.2 V to 5.5 V.
Time accuracy: Factory calibrated to ±1 ppm @ 25°C
User progr. password for write protection of time and conguration.
Non-volatile conguration 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 qualication according to AEC-Q200 available.
BLOCK DIAGRAM
EVI
I
NT
RESET
CLKOUT
SCL
SDA
V
SS
V
DD
POWER
CONTROL
UNIX Time 1
UNIX Time 0
UNIX Time 2
UNIX Time 3
User RAM 1
00
0F
Seconds
Weekday
Control 2
Control 1
Status
Timer Status 1
Timer Status 0
Timer Value 1
Weekday Alarm /
Date Alarm
Hours Alarm
Minutes Alarm
Year
Month
Hours
Minutes
Count TS
Event Control
CLKIM
Timer Value 0
Year TS
Month TS
Minutes TS
Seconds TS
Hours TS
Date
1F
7
5
3
4
1
2
8
I
2
C-BUS
INTERFACE
SYSTEM
CONTROL
LOGIC
INPUT
OUTPUT
CONTROL
V
BACKUP
6
XTAL
OSCILLATOR
DIVIDER
FREQUENCY
OFFSET
COMPENSATION
10
RAM
20
User RAM 2
PW 2
ID
EEcmd
EEdata
EEaddr
PW 1
PW 0
PW 3
RAM
28
30
EEPW 1
EEPROM Backup
EEPROM Offset
EEPROM Clkout
EEPW 3
EEPW 0
EEPWE
EEPW 2
Configuration EEPROM
with RAM mirror
37
43 Bytes of
user EEPROM
(00h – 2Ah)
User EEPROM
Date TS
GP Bits
Metal lid is connected to VSS (pin #5)
All dimensions in mm typical
Version 1.0/08.2018
Micro Crystal AG Phone +41 32 655 82 82
Muehlestrasse 14 Fax +41 32 655 82 83
CH-2540 Grenchen sales@microcrystal.com
Switzerland www.microcrystal.com
A unique part number will be generated for each product specication, 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)
Temperature range
Package size
TA = -40 to +85°C (Standard)
Qualification
QC = Commercial Grade (Standard)
QA = Automotive Grade AEC-Q200
Product type
RTC module
C7 = 3.2 x 1.5 x 0.8 mm
RV - 3028 - C7 TA QC
TERMINATIONS AND
PROCESSING
Package Termination Processing
SON-8 Au ashed pads IPC/JEDEC J-STD-020C
260°C / 20 - 40 s
ORDERING INFORMATION
All specifications subject to change without notice.
ENVIRONMENTAL
CHARACTERISTICS
Conditions Max. Dev.
Storage temp. 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 ppm
Vibration resistance ΔF/F 20 g / 10–2000 Hz ±5 ppm
ELECTRICAL CHARACTERISTICS
AT 25°C
More detailed information can be found in the
Application Manual.
Symbol Condition Min. Typ. Max Unit
Supply voltage VDD I2C-bus active 1.2 5.5 V
Supply voltage VDD Time keeping 1.1 5.5 V
Current consumption
Time keeping mode IDDO
I2C-bus inactive,
VDD = 3 V 40 60 nA
CLKOUT frequency FCLKOUT Programmable 32768...to...1 Hz
Time accuracy Δt/t @ 25°C ±1 ppm
Aging rst year max. ΔF/F @ 25°C ±3 ppm
PIN CONNECTIONS
TOP VIEW
M742A1
3028
#1 #4
#5#8
Pin 1 Index
Product
Date Code
Part
Designation
Pin Connection
1 CLKOUT Clock Output
2 INT Interrupt Output
3 SCL Serial Clock Input
4 SDA Serial Data
5 VSS Ground
6 VBACKUP Backup Supply Voltage
7 VDD Power Supply Voltage
8 EVI Event Input
-160
-140
-120
-100
-80
-60
-40
-20
0
20
-60 -40 -20 0 20 40 60 80 100
ΔF/F [ppm]
T[°C]
T
0
= 25°C ±5°C
–0.035*(T-T
0
)
2
ppm ±10%
Tuning Fork Crystal
FREQUENCY TEMPERATURE
CHARACTERISTICS