General Description

The DS1099 is a low-cost, low-power, low-frequency silicon oscillator that generates two square-wave outputs 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.

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)

Applications

Flashing LED Status Indicators

Consumer Appliances

Automotive

Servers

Printers

Switch-Mode Power Supplies