Real Time Clock - I2C Bus
Specifications
2011/65/EU
RV3029C3
Parameters
Frequencies (selectable):
32.768kHz, 1024Hz, 32Hz & 1Hz
Frequency tolerance @ 25°C:
±10ppm typ, ±20ppm max
Time accuracy:
±3ppm max (0.26s/day) @ 25°C
±6ppm max (0.52s/day), -40+85°C
±25ppm max (2.17s/day), -40+85°C
±8ppm max (0.70s/day), -40+125°C
±30ppm max (2.60s/day), -40+125°C
Product
RV3029C3
see above
Option
Codes
3.70
(typ)
A
B
D
E
2.50
(typ)
Operating temperature range:
-40 to +85°C
Extended op. temp range:
-40 to +125°C
SOLDER PAD LAYOUT
Storage temperature range:
-55 to +125°C
Supply voltage (V
DD
):
I
2
C bus active 1.8 ~ 5.5V
Time-keeping mode 1.3 ~ 5.5V
Supply current (V
DD
=3.0V):
0.80μA typ, 1.0μA max
Shock and vibration resistance:
±5ppm, 5,000g, 0.3ms, ½ sine
±5ppm, 20g, 10.0 ~ 2,000Hz
Soldering condition:
Reflow, 260°C, 20 sec max
0.90
(max)
0.80
1
10
0.30
5
6
0.60
3.00
0.50
TOP VIEW
PAD
1
2
3
4
5
CONNECTION
Clock output enable (CLKOE)
Supply (VDD)
Clock output (CLKOUT)
Serial clock input (SCL)
Serial data (SDA)
PAD
6
7
8
9
10
CONNECTION
Ground (VSS)
Interrupt output (INT)
Not connected
Backup supply voltage
Not connected
0.80
0.80
Features
Standard.
Optional - Please specify required code(s) when ordering
Ordering Information
Temperature compensated accuracy
AEC Q200 Rev C compliant
Compliant with I
2
C-Bus interface (400kHz)
Backup battery input (internal switchover)
Programmable alarm, timer and interrupt
Product + option code
eg:
RV3029C3/B
±25ppm -40+85°C
Option code X (eg RV3029C3/X) denotes a custom spec.
Available on T&R - 1k or 3k pcs per reel
Evaluation / development board & manual available on request
The I
2
C-Bus is a trademark of Philips Electronics NV
Description
Block Diagram
The RV3029C2 is a Real-Time-Clock Module with embedded crystal. This
RTC has an I
2
C Bus (2-wire Serial-Interface) and offers temperature
compensated time. The STC (Smart Temperature Compensation) can be
factory calibrated to achieve a very high time accuracy of ±6ppm from
-40°C to +85°C (option A) and ± 8ppm from -40°C to +125°C (option 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 application.
The calendar function tracks year and leap-year flags. The clock tracks
second, minute and hour in 24-hour format. Programmable alarm setting
and universal timer functions increase flexibility.
Manufactured by Micro Crystal
Stocked & distributed by Golledge
Tel:
+44 1460 256 100
03 May 2012
Fax:
+44 1460 256 101
E-mail:
sales@golledge.com
Web:
www.golledge.com
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