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 flags. The clock function tracks minute and
second in 24-hour format. Programmable alarm setting and universal
timer functions increase flexibility.
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
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
W ATC H D OG
CE
SCL
SDI
SDO
T IM E R F U N C T IO N
7
3
4
5
05
D a ys
06
W e e kd a ys
07
M o n th s
08
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
ELECTRICAL CHARACTERISTICS
AT 25°C:
Symbol
Condition
Supply voltage
VDD
SPI Bus Active
1.6
Supply voltage
VDD
Time keeping
1.1
Current consumption
during access
IDD
Current consumption
Time keeping mode
IDDO
CLKOUT frequency
Min. Typ. Max
5.5
Unit
V
5.5
V
fscl=1 MHz VDD 3 V
30
80
μA
fscl=4.5 MHz VDD 3 V
250
400
μA
fscl=0 Hz, VDD 3 V
130
180
nA
fscl=0 Hz, VDD 1 V
110
160
nA
Programmable
32768...to...1
Frequency tolerance
F/F
@ 25°C
Aging first year max.
F/F
@ 25°C
Frequency vs. temp.
F/FO
20 ≤ T0 ≤ 30
±10 / ±20
Hz
1)
ppm
±3
–0.035
ppm
ppm
2
/°C² (T - T0) ±10%
ppm
1) Tighter and wider frequency tolerances on request.
ENVIRONMENTAL
CHARACTERISTICS:
TERMINATIONS AND
PROCESSING:
Conditions
Max. Dev.
Storage temp. range
–55 to +125°C
TA Operating temperature range
–40 to +85°C
Shock resistance
F/F 5000 g, 0.3 ms, ½ sine
+/-5 ppm
Vibration resistance
F/F
+/-5 ppm
20 g / 10–2000 Hz
Package-Type
Termination
Processing
SON 10-pin
For SMD mounting
Au plated pads
Reflow soldering
260°C / 20 s max.
CURRENT CONSUMPTION vs.
200.0
POWER SUPPLY VOLTAGE:
190.0
180.0
IDD [nA]
170.0
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
VDD [V]
PIN CONNECTIONS
TOP VIEW:
Pin
Product Marking
#10
#6
2123
#1
Pin 1 Index
#5
Connection
1
VDD
Power Supply Voltage
2
CLKOUT
Frequency output
3
SCL
Serial clock input
4
SDI
Serial Data In
5
SDO
Serial Data Out
6
VSS
Ground
7
CE
Chip Enable
8
INT
Interrupt output
9
NC
not connected
10
CLKOE
CLK output enable
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