Real Time Clock
Specifications
RV8564C2
Product
RV8564C2
Option
Codes
Parameters
Frequencies (selectable):
32.768kHz, 1024Hz, 32Hz & 1Hz
Frequency tolerance:
±10ppm
±20ppm
Other
A
B
specify
5.20
(max)
Turnover temperature (T
0
):
+25°C ±5°C
Frequency / temp coefficient:
-0.035ppm/°C
2
±10%
Operating temperature range:
-40 to +85°C
ACTUAL SIZE
1.20
(max)
3.40
(max)
SOLDER PAD LAYOUT
0.90
10
1
6
5
0.60
1.00
TOP VIEW
Storage temperature range:
-55 to +125°C
Supply voltage (V
DD
):
I
2
C bus active 1.8 ~ 5.5V
Data holding voltage (V
DD
):
1.2 ~ 5.5V
Supply current (during access):
200µA max (fscl=100kHz)
800µA max (fscl=400kHz)
Supply current (backup mode):
275nA typ (fscl=0Hz, V
DD
=3V)
250nA typ (fscl=0Hz, V
DD
=2V)
Start up time:
Scale 3:1
Ageing:
3s max
2.20
1.00
0.40
PAD
1
2
3
4
5
CONNECTION
Supply (VDD)
Frequency output (CLKOUT)
Not connected
Serial clock input (SCL)
Data (SDA)
PAD
6
7
8
9
10
CONNECTION
Ground
Interrupt output (/INT)
Not connected
Not connected
FOUT output enable (CLKOE)
±3ppm max first year
Features
«
«
«
«
«
Shock and vibration resistance:
±5ppm, 5,000g, 0.3ms, s i n e
±5ppm, 20g, 10.0 ~ 2,000Hz
Soldering condition:
Reflow, 260°C, 20 sec max
Standard.
Optional - Please specify required code(s) when ordering
Equivalent to Epson RX-8564CF
Compliant with I
2
C-Bus interface (400kHz)
Built in crystal for adjustment-free operation
Programmable alarm, timer and interrupt
Low power consumption, low ageing
Ordering Information
Product + option code
eg:
RV8564C2/B
±20ppm
Option code X (eg RV8564C2/X) denotes a custom spec.
Available on T&R - 1k, 2.5k or 5k pcs per reel.
Refer to our website for T&R and soldering details.
The I
2
C-Bus is a trademark of Philips Electronics NBV
Block Diagram
32.768kHz
CRYSTAL
OSC
VOLTAGE
DETECTOR
DIVIDER
CLKOUT
CLKOE
/ INT
SCL
I2C BUS
INTERFACE
OUTPUT
CONTROL
CONTROL
LOGIC
Control 1
00
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Month / Century
Years
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CLKOUT Frequency
Timer Control
0F
Timer
SDA
ADDRESS
REGISTER
PDR
Tel:
+44 1460 256 100
14 Mar 2008
Fax:
+44 1460 256 101
E-mail:
sales@golledge.com
Web:
www.golledge.com
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