RV-2123-C2
DIMENSIONS
Package:
5,0
± 0,2
1,0
0,4
1,0
1,0
Real Time Clock Module with SPI Bus
Recommended Solder Pad:
1,0
0,6
0,9
± 0,2
1,0
0,35
3,2
4,6
0,6
100% leadfree, RoHS - compliant
max.1,2
All dimensions in mm typical
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
DESCRIPTION:
This RTC IC has been specially designed to achieve an ultra-low power
consumption of typically 130nA @ V
DD
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
fl
ags. The clock function tracks minute and
second in 24-hour format. Programmable alarm setting and universal
timer functions increase
fl
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
M O N IT O R
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
T IM E R F U N C T IO N
0E
T im e r / C L K O U T C o n tro l
C o u n td o w n T im e r
C ON TR OL
00
C o n tro l / S ta tu s 1
C o n tro l / S ta tu s 2
T IM E
0F
C LK OU T
C LK OE
2
10
8
C LOC K
OU TPU T
IN T
IN T E R R U P T
01
V
D D
V
SS
1
6
P O W E R-O N
RESET
02
03
04
05
06
07
O S / S e co n d s
V L / M in u te s
H o u rs
D a ys
W e e kd a ys
M o n th s
Y e a rs
A L A R M F U N C T IO N
W ATC H D OG
CE
SCL
SDI
SDO
7
3
4
5
S P I – 4 w ire
IN T E R F A C E
08
09
0A
0B
0C
0,9
2,2
M in u te
H our
D ay
W e e kd a y
4,0
ELECTRICAL CHARACTERISTICS
AT 25°C:
Symbol
Supply voltage
Supply voltage
Current consumption
during access
Current consumption
Time keeping mode
CLKOUT frequency
Frequency tolerance
Aging
fi
rst year max.
Frequency vs. temp.
F/F
F/F
F/F
O
V
DD
V
DD
I
DD
I
DDO
Condition
SPI Bus Active
Time keeping
fscl=1 MHz V
DD
3 V
fscl=4.5 MHz V
DD
3 V
fscl=0 Hz, V
DD
3 V
fscl=0 Hz, V
DD
1 V
Min. Typ. Max
1.6
1.1
30
250
130
110
5.5
5.5
80
400
180
160
Unit
V
V
μA
μA
nA
nA
Hz
ppm
ppm
ppm
Programmable
@ 25°C
@ 25°C
20
≤
T
0
≤
30
32768...to...1
±10 / ±20
1)
±3
–0.035
ppm
/
°C²
(T - T
0
)
2
±10%
1) Tighter and wider frequency tolerances on request.
ENVIRONMENTAL
CHARACTERISTICS:
Storage temp. range
TA Operating temperature range
Shock resistance
Vibration resistance
TERMINATIONS AND
PROCESSING:
Package-Type
SON 10-pin
CURRENT CONSUMPTION vs.
POWER SUPPLY VOLTAGE:
Conditions
–55 to +125°C
–40 to +85°C
Max. Dev.
F/F 5000 g, 0.3 ms, ½ sine
F/F
Termination
For SMD mounting
Au plated pads
20 g / 10–2000 Hz
+/-5 ppm
+/-5 ppm
Processing
Reflow soldering
260°C / 20 s max.
200.0
190.0
180.0
170.0
I
DD
[nA]
160.0
150.0
140.0
130.0
120.0
110.0
100.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V
DD
[V]
PIN CONNECTIONS
TOP VIEW:
Pin
Connection
V
DD
Power Supply Voltage
Product Marking
#10
#6
1
2
3
CLKOUT
SCL
SDI
SDO
V
SS
Frequency output
Serial clock input
Serial Data In
Serial Data Out
Ground
Chip Enable
Interrupt output
not connected
CLK output enable
2123
#1
Pin 1 Index
#5
4
5
6
7
8
9
10
CE
INT
NC
CLKOE
All specifications subject to change without notice.
Micro Crystal AG
Mühlestrasse 14
CH-2540 Grenchen
Switzerland
Tel.
+41 32 655 82 82
Fax
+41 32 655 82 83
sales@microcrystal.com
www.microcrystal.com
Version 1.4/05.2012