DS1099 Rev 1 9/07 Low-Frequency Dual EconOscillator General Description Features The DS1099 is a low-cost, low-power, low-frequency Low-Cost, Low-Frequency EconOscillator with silicon oscillator that generates two square-wave out- Dual Outputs puts with frequencies between 0.25Hz and 1.048MHz. Factory Programmed Individual output enables allow both outputs to be enabled/disabled independently. Both outputs are Output Frequencies Independently Programmable capable of sinking 16mA, allowing them to directly from 0.25Hz to 1.048MHz interface to light-emitting diodes (LEDs) as well as other 2.7V to 5.5V Single-Supply Operation external circuitry. The DS1099 operates over a wide supply voltage, making it suitable for both 3V and 5V No External Timing Components Required systems. The device is shipped from the factory custom Independent Output Enables programmed and calibrated, ready to be inserted into the end application. CMOS/TTL-Compatible Outputs Contact the factory for custom frequencies or Oscillator Outputs Capable of Sinking 16mA to requirements. Directly Drive LEDs Relieves Microprocessor of Periodic Interrupt Low-Power Consumption Operating Temperature Range: -40C to +125C Applications 100ppm/C Temp Drift (MAX) Flashing LED Status Indicators Consumer Appliances Ordering Information Automotive Servers PART TEMP RANGE PIN-PACKAGE Printers DS1099U- 1 O -40C to +125C 8 SOP Switch-Mode Power Supplies *Where and specify the factory programmed divider set- 0 1 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 V V CC CC TOP VIEW V CC OUT1 1 8 N.C. OE0 OUT0 2 7 N.C. DS1099 OUT0 OE1 OUT1 N.C. DS1099 V 3 6 OE1 CC N.C. GND GND 4 5 OEO OUTPUTS CAPABLE OF OE1 CAN INSTEAD SINKING 16mA SOP BE TIED TO V CC IF OUT1 IS NOT USED. Maxim Integrated Products 1 For pricing, delivery,For pricing, delivery, and ordering information,and ordering information, please contact Maxim Directplease contact Maxim Direct at 1-888-629-4642,at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.or visit Maxims website at www.maxim-ic.com.Low-Frequency Dual EconOscillator ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to Ground ...........-0.5V to +6.0V Operating Temperature Range .........................-40C to +125C CC Voltage Range on OE0 and OE1 Storage Temperature Range .............................-55C to +125C Relative to Ground.................................-0.5V to (V + 0.5V), Soldering Temperature .......................................See IPC/JEDEC CC not to exceed 6.0V 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 (T = -40C to +125C) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 1) 2.7 5.5 V CC 0.7 x V + CC Input Logic 1 (OE0, OE1)V V IH V 0.3 CC +0.3 x Input Logic 0 (OE0, OE1)V -0.3 V IL V CC DC ELECTRICAL CHARACTERISTICS (V = +2.7V to +5.5V, T = -40C to +125C, unless otherwise noted.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Standby Supply Current I OE0 = OE1 = V 145 275 A STBY CC 1.048MHz (both) 323 C = 15pF per output, L Active Supply Current (Note 2) I OE0 = OE1 = GND, A CC 4kHz (both) 146 V = 3.3V CC 1Hz (both) 145 High-Level Output Voltage V I = -1mA, V = MIN 2.4 V OH OH CC (OUT0, OUT1) Low-Level Output Voltage I = 16mA (-40C to +85C) OL V 0.4 V OL (OUT0, OUT1) I = 12mA (-40C to +125C) OL High-Level Input Current I V = V +1.0 A IH IH CC (OE0,OE1) Low-Level Input Current I V = 0.0V -1.0 A IL IL (OE0,OE1) 2 DS1099