R
EM1564
Copyright
2006, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
Low Power Crystal Oscillator 32.768 kHz
Description
The EM1564 is a very low power crystal oscillator, which
consists of a 32.768 kHz tuning fork crystal and an
advanced CMOS circuit assembled in the same very
small SMD ceramic package.
Very low power consumption, as low as 300nA, is
guaranteed over a very wide supply voltage and
temperature ranges.
The EM1564 is a completely lead free product.
Applications
General purpose clock generator for digital systems
Clock drivers for Real Time Clocks
Timekeeping in network servers and computers
Data logger
Electricity, gas and water metering
Portable field communication
Mobile phone
Features
All-in-one-package solution
Miniature ceramic package for SMD mounting
Package height 1.2mm
Very low power consumption typ. 300nA
Very tight frequency tolerance
Excellent oscillator stability: 0.2 ppm/V
Wide supply voltage range: 1.2V to 5.5V
Operating temperature range: -40C to +85C
On request extended temperature range: -40C to
+125C
Low aging
High shock and vibration resistant
100% lead free, RoHS - compliant
Fig. 1
Block Diagram
OSCILLATOR
OUT
OE
VDD
VSS
OUTPUT
CONTROL
1
6
10
5
REGULATION
Fig. 2
Pin Connection Top View
Pin Connection
1 V
DD
Positive Supply Voltage
5 OUT
Frequency
Output
6
VSS
Negative Supply Voltage
10 OE
Output
Enable
Pins 2, 3, 4, 7, 8, 9 are not connected
EM MICROELECTRONIC -
MARIN SA
R
EM1564
Copyright
2006, EM Microelectronic-Marin SA
2
www.emmicroelectronic.com
Absolute Maximum Ratings
Parameter Symbol
Conditions
Voltage at V
DD
to V
SS
V
DD
-0.3V to +6V
Minimum voltage at OE
V
MIN
V
SS
0.3V
Maximum voltage at OE
V
MAX
V
DD
+ 0.3V
Storage temperature range
T
STG
-55C to +150C
Maximum soldering
T
Smax
260C x 20s
Stresses above these listed maximum ratings may cause
permanent damages to the device. Exposure beyond
specified operating conditions may affect device
reliability or cause malfunction.
Handling Procedures
This device has built-in protection against high static
voltages or electric fields; however, anti-static
precautions must be taken as for any other CMOS
component. Unless otherwise specified, proper operation
can only occur when all terminal voltages are kept within
the voltage range. Unused inputs must always be tied to
a defined logic voltage level.
Operating Conditions
Parameter Symbol
Min
Max
Unit
Supply voltage
V
DD
1.2 5.5
V
Operating temperature
T
A
-40 +85
C
Electrical Characteristics
Unless otherwise specified: V
DD
= 3.0V, V
SS
= 0V, T
A
=25C
Parameter Symbol
Conditions
Min
Typ
Max
Unit
Supply voltage range
V
DD
1.2
3.0
5.5
V
Current consumption
I
DD1
V
DD
= 5.0V, OE at V
SS
300
550
nA
(Note1)
V
DD
= 3.0V, OE at V
SS
250
500
nA
V
DD
= 2.0V, OE at V
SS
250
500
nA
V
DD
= 5.0V, OE at V
SS
Top=-40 to +85C
750
1000
nA
V
DD
= 3.0V, OE at V
SS
Top=-40 to +85C
650
900
nA
V
DD
= 2.0V, OE at V
SS
Top=-40 to +85C
650
900
nA
Oscillator
Start up voltage
V
STARTUP
t
START
< 3s
1.2
V
Start up time
t
STARTUP
0.4
0.8
s
Frequency stability against
supply voltage variations
f/f *V 1.5 V
DD
5.5V
0.2
2
ppm/V
Input
Input voltage
V
IL
V
SS
0.2 x V
DD
V
V
IH
0.8 x V
DD
V
DD
V
Output
Duty cycle
40
50
60
%
Output voltage
V
OH
I
OH
= -1.0 mA, V
DD
= 5.0V
V
DD
-0.4 V
DD
-0.1 V
V
OL
I
OL
= 1.0 mA, V
DD
= 5.0V
0.14
0.4
V
Output rise time
T
r
C
L
= 15pF
10%V
DD
90%V
DD
70
100
ns
Output fall time
T
f
C
L
= 15pF
90%V
DD
10%V
DD
70
100
ns
Output frequency
f
32768
kHz
Frequency tolerance
f/f
(Note2)
20
ppm
Aging first year max
f/f
3
ppm
Frequency vs temperature
(f/f)
/C
-0.035
10% ppm/C
Note1: The current consumption when the output clock is enabled (OE pin at V
DD
) is a function of the load capacitance on
the OUT pin, the output frequency f
OUT
= 32768Hz
and the supply voltage V
DD
.
The additional consumption for a given load can be calculated from: I
DD =
C
LOAD
x V
DD
x f
OUT
Note2: Tighter tolerances are available on request.
Environmental Characteristics
Parameter Symbol
Conditions
Min
Typ
Max
Unit
Shock resistance
f/f
5000g, 0.3ms, sine
5
ppm
Vibration resistance
f/f
20g / 10-2000Hz
5
ppm
R
EM1564
Copyright
2006, EM Microelectronic-Marin SA
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Timing Waveforms
32768Hz
OE
OUT
32768Hz
OE
OUT
OE
OUT
V
IH
V
IL
t
CKH
t
CKL
t
CKH
t
CKH
t
CKL
t
CKL
= 0
Frequency Temperature Characteristics
R
EM1564
Copyright
2006, EM Microelectronic-Marin SA
4
www.emmicroelectronic.com
Package Information:
Package:
Recommended Solder Pad:
All dimensions in mm typical
The termination is with Au flashed pads for SMD mounting.
Ordering Information
The EM1564 can be delivered with different frequency tolerances and in different packages. Contact EM Microelectronic for
availability of different options not shown in the table below.
Please make sure to write the exact Part Number when ordering.
Part Number
Version
Frequency
Tolerance
Package Type
Top
Marking
Delivery Form
EM1564V1SON10B+
V1
20 ppm
(Note2)
SON -10
1464
7"(178mm) reel with 1'000 packages
10"(254mm)reel with 2'500 packages
13"(330mm)reel with 5'000 packages
Note2: Tighter tolerances are available on request.
EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the
Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM
assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or
specifications detailed herein at any time without notice, and does not make any commitment to update the information
contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM
products, expressly or by implications. EM's products are not authorized for use as components in life support devices or
systems.
EM Microelectronic-Marin SA, 02/06, Rev. A
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