RV3049C2 Datasheet, PDF (1/1 Pages) Golledge Electronics Ltd – Real Time Clock - SPI Bus

Real Time Clock - SPI Bus
5.20
(max)
3.40
(max)
1.20
(max)
SOLDER PAD LAYOUT
0.90
10
6
2.20
1
5
1.00
0.40
0.60
1.00
TOP VIEW
PAD CONNECTION
PAD CONNECTION
1 Supply (VDD)
6 Ground
2 Frequency output (CLKOUT) 7 Interrupt output (/INT)
3 Chip select (CS)
8 Backup supply
4 Serial clock input (SCL)
9 Serial data in (SDI)
5 Serial data out (SDO)
10 CLK output enable (CLKOE)
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
RV3049C2
Specifications
Parameters
Frequencies (selectable):
32.768kHz, 1024Hz, 32Hz & 1Hz
Product
RV3049C2

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

Operating temperature range:
-40 to +85°C

Extended op. temp range:
-40 to +125°C

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
Option
Codes
A
B
D
E
Ordering Information
Product + option code
eg: RV3049C2/B ±25ppm -40+85°C
Option code X (eg RV3049C2/X) denotes a custom spec.
 Available on T&R - 1k or 5k pcs per reel.
 Evaluation / development board & manual available on request
Description
The RV3049C2 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 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: [phone]
031 May 21091928
Fax: [phone]
E-mail: [e-mail]
Web: www.golledge.com