RV-8523-C3

RV-8523-C3
Real Time Clock Module with I2C Bus
DIMENSIONS
Package:
Recommended Solder Pad:
3,70
0,8
0,8
0,8
3
4
5
10
9
8
7
6
1,4
0,8
3,0
2
0,5
2,50
1
0,8
0,8
0,3
0,6
0,8
max.0,9
0,1
3,70
100% leadfree, RoHS - compliant
Ultra low power consumption 130nA
Xtal integrated solution.
Frequency-Offset Trimming Register
Backup supply switchover circuitry
Miniature SMT ceramic package
Very tight frequency tolerance
I2C Bus Interface (fast mode 1 MHz)
Programmable Clock-output
Low aging
Time keeping mode down to 1.2 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, dual timer
functions and integrated switch-over circuitry to backup supply voltage
increase flexibility.
For pick-and-place equipment, the parts are available in 12 mm tape:
7” (178 mm) reel with 1'000 or 3'000 parts
BLOCK DIAGRAM:
32.768 kHz
Xtal
FREQUENCY
DIVIDER
and
OFFSET
COMPENSATION
OSC
CLKOUT
INT_1
INT_2
VDD
VBACKUP
VSS
5
2
6
CLKOUT
&
Interrupt
CONTROL
1
8
POWER
CONTROL
7
2
SCL
SDA
3
I C-BUS
2-wire
4
Serial
Interface
SYSTEM
CONTROL
LOGIC
Control 0
Control 1
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Months
Years
Minute Alarm
Hour Alarm
Day Alarm
Weekday Alarm
Frequency Offset
Timer & CLKOUT
Timer A Clock
Timer A
Timer B Clock
Timer B
00
13
ELECTRICAL CHARACTERISTICS
AT 25°C:
Symbol
Condition
Min. Typ. Max Unit
Supply voltage
VDD
I C Bus Active
1.6
5.5
V
Supply voltage
VDD
Power Managm.
1.8
5.5
V
Supply voltage
VDD
Time keeping
1.2
5.5
V
Current consumption
during access
IDD
Current consumption
Time keeping mode
IDDO
2
CLKOUT frequency
fscl=1 MHz VDD 3 V
100
200
µA
fscl=100 kHz VDD 3 V
50
100
µA
fscl=0 Hz, VDD 3 V
130
180
nA
fscl=0 Hz, VDD 2 V
110
160
nA
Programmable
32768...to...1
Hz
Frequency tolerance
ΔF/F
@ 25°C
±10 / ±20 1)
ppm
Aging first year max.
ΔF/F
@ 25°C
±3
ppm
Frequency vs. temp.
ΔF/FO
20 ≤ T0 ≤ 30
–0.035
ppm/
°C² (T
)2
- T0 ±10%
ppm
1) Tighter and wider frequency tolerances on request.
ENVIRONMENTAL
CHARACTERISTICS:
Conditions
Storage temp. range
–55 to +125°C
TA Operating temperature range
TERMINATIONS AND
PROCESSING:
Max. Dev.
–40 to +85°C
Shock resistance
ΔF/F 5000 g, 0.3 ms, ½ sine +/-5 ppm
Vibration resistance
ΔF/F
20 g / 10–2000 Hz
+/-5 ppm
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:
Product Marking
#10
#6
8523
#1
Pin 1 Index
#5
Pin
Connection
1
VDD
Power Supply Voltage
2
INT_1
Interrupt_1 Output
3
SCL
Serial Clock Input
4
SDA
Serial Data
5
CLKOUT
Clock Frequency Output
6
INT_2
Interrupt_2 Output
7
VSS
Ground
8
VBACKUP
Backup Supply Voltage
9
NC
not connected
10
NC
not connected
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
[email protected]
www.microcrystal.com
Version 1.2/04.2016