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
"