RV-3049-C3
DIMENSIONS
Package:
3,70
0,8
0,3
0,8
0,8
Real Time Clock Module with SPI-Bus
Recommended Solder Pad:
0,8
0,8
0,5
0,8
3,70
max.0,9
0,1
1
2
3
4
5
2,50
0,6
100% leadfree, RoHS - compliant
All dimensions in mm typical
Extremely Accurate RTC Module
with embedded Xtal.
SPI Interface
Temperature Compensation
Automotive qualified, according to
AEC-Q200 Rev. C
Time Deviation
@ +25°C
± 0.26 s/day
0°C to +50°C
± 0.35 s/day
-10°C to +60°C ± 0.44 s/day
-40°C to +85°C ± 0.52 s/day
-40°C to +125°C ± 0.70 s/day
DESCRIPTION:
The RV-3049-C3 is an ultra miniature Real-Time-Clock Module
with embedded Crystal. This RTC has an SPI Bus (4-wire Serial-
Interface) and offers temperature compensated time. The STC-Smart
Temperature Compensation is calibrated in the factory and leads
to a very high time-accuracy of ± 6ppm from -40°C to +85°C and
± 8ppm from -40°C to +125°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's application.
The calendar function tracks year and leap -year
fl
ags. The clock tracks
second, minute and hour in 24-hour format. Programmable alarm setting
and universal timer functions increase
fl
exibility.
For pick-and-place equipment, the parts are available in 12 mm tape:
7” (178 mm) reel with 1'000 parts
7” (178 mm) reel with 3'000 parts
Option A:
T
emperature
Calibrated
±
±
±
±
±
3ppm
4ppm
5ppm
6ppm
8ppm
Option B:
T
emperature
@ +25°C
0°C to +50°C
-10°C to +60°C
-40°C to +85°C
-40°C to +125°C
Default
Time Deviation
± 0.26 s/day
± 3ppm
± 0.44 s/day
± 5ppm
± 0.87 s/day
±10ppm
± 2.17 s/day
±25ppm
± 2.60 s/day
±30ppm
BLOCKDIAGRAM:
32.768 kHz
Xtal
OSC
DIVIDER
and
TEMPERATURE
COMPENSATION
LOGIC
On / Off Ctrl
IRQ Ctrl
Control 3
Control 4
Seconds
Minutes
Hours
Date
Weekday
Month
Year
Seconds Alarm
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
Month Alarm
Year Alarm
Timer Low
Timer High
Temperature °K
User EEPROM
2 Bytes
EE Control 1
Xtal Deviation
Xtal Temp-Coef
Xtal T0 Temp
User RAM
8 Byte
User RAM
00
CLKOUT
CLKOE
INT
3
1
7
2
9
6
POWER
CONTROL
OUTPUT
CONTROL
V
DD
V
BACKUP
V
SS
SYSTEM
CONTROL
LOGIC
0,8
10
9
8
7
6
1,4
3,0
CE
SCL
SDO
SDI
8
4
5
10
SPI-BUS
4-wire
Serial
Interface
TEMPERATURE
SENSOR
20
28
29
38
3F
ELECTRICAL CHARACTERISTICS
AT 25°C:
Symbol
Supply voltage
Supply voltage
Current consumption
CLKOUT frequency
Frequency Tolerance
Freq.vs.Temp.
Aging
fi
rst year
Time accuracy Opt. A
Time accuracy Opt. B
F/F
F/F
TOPR
F/F
t/t
t/t
V
DD
V
DD
I
DDO
Condition
Time keeping
Temp. comp.
V
DD
= 3V
Progr.
@ 25°C
20
≤
T
0
≤
30
@ 25°C
@ 25°C
-40 to +85°C
@ 25°C
-40 to +85°C
Min. Typ. Max
1.3
1.8
800
±10
5.5
5.5
1000
±20
±3
Unit
V
V
nA
Hz
ppm
ppm
ppm
32.768/1024/32/1
–0.035
ppm
/
°C²
(T - T
0
)
2
±10%
±0.26 s/day
±0.52 s/day
±0.26 s/day
±2.17 s/day
ENVIRONMENTAL
CHARACTERISTICS:
Storage temp. range
TA Operating temperature range
TB Extended oper. temp. range
Shock resistance
Vibration resistance
PACKAGE, TERMINATIONS AND
PROCESSING:
Package-Type
SON 10-pin
FREQUENCY TEMPERATURE
CHARACTERISTICS:
75.0
50.0
25.0
0.0
-25.0
-50.0
-75.0
-100.0
ppm
Conditions
–55 to +125°C
–40 to +85°C
–40 to +125°C
Max. Dev.
F/F 5000 g, 0.3 ms, ½ sine
F/F
Termination
For SMD mounting
Au plated pads
20 g / 10–2000 Hz
± 5 ppm
± 5 ppm
Processing
Reflow soldering
260°C/20 s max.
Opt: A
Opt:
-125.0
-150.0
-175.0
-200.0
-225.0
-250.0
-275.0
-300.0
-325.0
-350.0
-375.0
-50.0
-30.0
-10.0
10.0
30.0
50.0
70.0
90.0
110.0
130.0
no compensation
t t
Temperat re °C
PIN CONNECTIONS
TOP VIEW:
Product Marking
10
6
3049
1
Pin 1 Index
5
Pin
1
2
3
4
5
6
7
8
9
10
Connection
CLKOE CLK Output Enable
Supply Voltage
V
DD
CLKOUT Clock Output
SCL
Serial Clock Input
SDO
Serial Data Output
V
SS
Ground
INT
Interrupt Output
CS
Chip Select
V
BACKUP
Backup Supply Voltage
SDI
Serial Data Input
All specifications subject to change without notice.
Micro Crystal AG
Mühlestrasse 14
CH-2540 Grenchen
Switzerland
Tel.
+41 32 655 82 82
Fax
+41 32 655 82 83
sales@microcrystal.com
www.microcrystal.com
Version 1.3/05.2012
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