SMC0608S-6-tone-Sound-generator-Tru Semi-SMC0608S-6-Tone-Generator-5V-Operating-Voltage-800m A-Operating-Current-8m A-Output-Current-128k Hz-Oscillating-Frequency-40-C-to-125-C-8-DIP-Case-Low-Operating-Voltage-CMOS-Process-Single-RC-Oscillator-For-Alarm-Sound-Applications Smc 0608s-6-tone-Sound-Generator