RV3049C3 Datasheet, PDF (1/1 Pages) Golledge Electronics Ltd – Real Time Clock - SPI Bus

Real Time Clock - SPI Bus
2011/65/EU
3.70
(typ)
2.50
(typ)
0.90
(max)
SOLDER PAD LAYOUT
0.80
0.60
0.80
1
5
10
6
3.00
0.30
0.50
0.80
TOP VIEW
PAD CONNECTION
PAD CONNECTION
1 Clock output enable (CLKOE) 6 Ground (VSS)
2 Supply (VDD)
7 Interrupt output (INT)
3 Clock output (CLKOUT)
8 Chip select (CS)
4 Serial clock input (SCL)
9 Backup supply voltage
5 Serial data output (SDO)
10 Serial data input (SDI)
Features
 ^{Temperature compensated accuracy}
 ^{AEC Q200 Rev C compliant}
 ^{Compliant with 4-wire SPI-Bus}
 ^{Backup battery input (internal switchover)}
 ^{Programmable alarm, timer and interrupt}
Block Diagram
RV3049C3
Specifications
Parameters
Frequencies (selectable):
32.768kHz, 1024Hz, 32Hz & 1Hz
Product
RV3049C3

Option
Codes
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

A
±25ppm max (2.17s/day), -40+85°C

B
±8ppm max (0.70s/day), -40+125°C

D
±30ppm max (2.60s/day), -40+125°C

E
Operating temperature range:
-40 to +85°C

Extended op. temp range:
-40 to +125°C

see above
Storage temperature range:
-55 to +125°C

Supply voltage (V_DD):
SPI 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

 Standard.  Optional - Please specify required code(s) when ordering
Ordering Information
Product + option code
eg: RV3049C3/B ±25ppm -40+85°C
Option code X (eg RV3049C3/X) denotes a custom spec.
 Available on T&R - 1k or 3k pcs per reel.
 Evaluation / development board & manual available on request
Description
The RV3049C3 is a Real Time Clock Module with embedded crystal. This
RTC has a 4-wire serial interface (SPI-Bus) and offers temperature
compensated time. The STC (Smart Temperature Compensation) can be
factory calibrated to achieve a very high time accuracy of ±6ppm over
-40°C to +85°C (option A) and ± 8ppm over -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: [phone]
24 May 2012
Fax: [phone]
E-mail: [e-mail]
Web: www.golledge.com