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Dallas Semiconducotr
Dallas Semiconducotr

DS1099 Datasheet Preview

DS1099 Datasheet

Low-Frequency Dual EconOscillator

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DS1099 pdf
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Rev 0; 2/04
Low-Frequency Dual EconOscillator
General Description
The DS1099 is a low-cost, low-power, low-frequency
silicon oscillator that generates two square-wave out-
puts with frequencies between 0.25Hz and 1.048MHz.
Individual output enables allow both outputs to be
enabled/disabled independently. Both outputs are
capable of sinking 16mA, allowing them to directly
interface to light-emitting diodes (LEDs) as well as other
external circuitry. The DS1099 operates over a wide
supply voltage, making it suitable for both 3V and 5V
systems. The device is shipped from the factory custom
programmed and calibrated, ready to be inserted into
the end application.
Contact the factory for custom frequencies or require-
ments.
Applications
Flashing LED Status Indicators
Consumer Appliances
Automotive
Servers
Printers
Switch-Mode Power Supplies
Features
Low-Cost, Low-Frequency EconOscillator™ with
Dual Outputs
Factory Programmed
Output Frequencies Independently Programmable
from 0.25Hz to 1.048MHz
2.7V to 5.5V Single-Supply Operation
No External Timing Components Required
Independent Output Enables
CMOS/TTL-Compatible Outputs
Oscillator Outputs Capable of Sinking 16mA to
Directly Drive LEDs
Relieves Microprocessor of Periodic Interrupt
Low-Power Consumption
Operating Temperature Range: -40°C to +85°C
±100ppm/°C Temp Drift (MAX)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS1099U-α0 α1*
-40°C to +85°C
8 µSOP
*Where α0 and α1 specify the factory programmed divider set-
tings for OUT0 and OUT1, respectively.
Ordering information is continued on the last page.
EconOscillator is a trademark of Dallas Semiconductor.
Typical Operating Circuit
Pin Configuration
VCC VCC
TOP VIEW
VCC
OE0
OE1 DS1099 OUT0
N.C. OUT1
N.C. GND
OE1 CAN INSTEAD
BE TIED TO VCC
IF OUT1 IS NOT USED.
OUTPUTS CAPABLE OF
SINKING 16mA
OUT1 1
OUT0 2
VCC 3
GND 4
DS1099
µSOP
8 N.C.
7 N.C.
6 OE1
5 OEO
______________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.



Dallas Semiconducotr
Dallas Semiconducotr

DS1099 Datasheet Preview

DS1099 Datasheet

Low-Frequency Dual EconOscillator

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DS1099 pdf
Low-Frequency Dual EconOscillator
ABSOLUTE MAXIMUM RATINGS
Voltage Range on VCC Relative to Ground ...........-0.5V to +6.0V
Voltage Range on OE0 and OE1
Relative to Ground.................................-0.5V to (VCC + 0.5V),
not to exceed 6.0V
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature .......................................See IPC/JEDEC
J-STD-020A Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(TA = -40°C to +85°C)
PARAMETER
Supply Voltage
Input Logic 1 (OE0, OE1)
SYMBOL
VCC (Note 1)
VIH
CONDITIONS
Input Logic 0 (OE0, OE1)
VIL
MIN
2.7
0.7 x
VCC
-0.3
TYP
MAX
5.5
VCC +
0.3
+0.3 x
VCC
UNITS
V
V
V
DC ELECTRICAL CHARACTERISTICS
(VCC = +2.7V to +5.5V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
Standby Supply Current
Active Supply Current (Note 2)
High-Level Output Voltage
(OUT0, OUT1)
Low-Level Output Voltage
(OUT0, OUT1)
High-Level Input Current
(OE0, OE1)
Low-Level Input Current
(OE0, OE1)
SYMBOL
ISTBY
ICC
CONDITIONS
OE0 = OE1 = VCC
CL = 15pF per output,
OE0 = OE1 = GND,
1.048MHz (both)
4kHz (both)
VCC = 3.3V
1Hz (both)
MIN
VOH
IOH = -1mA, VCC = MIN
2.4
VOL IOL = 16mA
IIH VIH = VCC
IIL VIL = 0.0V
-1.0
TYP MAX UNITS
145 275
µA
323
146 µA
145
V
0.4 V
+1.0
µA
µA
2 _____________________________________________________________________


Part Number DS1099
Description Low-Frequency Dual EconOscillator
Maker Dallas Semiconducotr
Total Page 6 Pages
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