RV-2123-C20 pages

RV-2123-C2

Real Time Clock Module with SPI Bus
DIMENSIONS
Package:

Recommended Solder Pad:
1,0

1,0

1,0

1,0

5,0 ± 0,2
0,6

0,4

4,0

0,9

3,2

2,2

0,35

± 0,2

0,9

1,0

max.1,2

0,6

4,6

100% leadfree, RoHS - compliant

Ultra low power consumption 130nA
Automotive qualified, according to
AEC-Q200 Rev. C
Xtal integrated solution.
Frequency-Offset Trimming Register
Miniature SMT ceramic package
Very tight frequency tolerance
SPI Bus Interface (SCL up to 8 MHz)
Programmable Clock-output
Low aging
Time keeping mode down to 1.1 V
Programmable alarm, timer and
interrupt functions

All dimensions in mm typical

DESCRIPTION:
This RTC IC has been specially designed to achieve an ultra-low power
consumption of typically 130nA @ VDD 3.0V in time-keeping mode.
The very small SMT ceramic-package combines the 32.768 kHz crystal
unit with the CMOS-based oscillator and real-time-clock circuitry.
The calendar function tracks year, month, date, and day-of-the-week with
built-in century and leap-year ags. The clock function tracks minute and
second in 24-hour format. Programmable alarm setting and universal
timer functions increase exibility.
For pick-and-place equipment, the parts are available in 12 mm tape:
7” (178 mm) reel with 1'000 parts
13” (330 mm) reel with 5'000 parts

BLOCK DIAGRAM:
O S C ILLA T O R
32 .768 k H z

D IV ID E R
and
F R E Q U E N C Y-O F F S E T
C O M P E N S A T IO N

O F F S E T F U N C T IO N
0D

OFFSET

0E

T im e r / C L K O U T C o n tro l

0F

C o u n td o w n T im e r

00

C o n tro l / S ta tu s 1

M O N IT O R

C LK OU T
C LK OE

IN T

VD D
VSS

2

C LOC K
OU TPU T

T IM E R F U N C T IO N

10

C ON TR OL

8

IN T E R R U P T

01

C o n tro l / S ta tu s 2

1

P O W E R-O N
RESET

02

O S / S e co n d s

03

V L / M in u te s

04

H o u rs

T IM E

6

SCL
SDI
SDO

3
4
5

M o n th s

08

7

D a ys
W e e kd a ys

07
CE

05
06

W ATC H D OG

Y e a rs

S P I – 4 w ire
IN T E R F A C E

A L A R M F U N C T IO N
09

M in u te

0A

H our

0B

D ay

0C

W e e kd a y