C555

UNISONIC TECHNOLOGIES CO., LTD C555 SINGLE TIMER  DESCRIPTION The C555 astable and monostable timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation.  FEATURES * Timing from microseconds through hours * High speed operation – 500kHz * Wide operation supply voltage range – 7 to 15 voltages * Low Supply Current －0.2mA * Operates in both astable and monostable modes * High output source/sink driver can drive TTL / CMOS * Adjustable duty cycle  ORDERING INFORMATION Ordering Number Lead Free Halogen Free C555L-D08-T C555G-D08-T C555L-S08-R C555G-S08-R Package DIP-8 SOP-8 CMOS IC Packing Tube Tape Reel  MARKING DIP-8 SOP-8 www.unisonic.com.tw Copyright © 2018 Unisonic Technologies Co., Ltd 1 of 4 QW-R502-A12.D C555  PIN CONFIGURATION CMOS IC  PIN DESCRIPTION PIN No. 1 2 3 4 5 6 7 8 PIN NAME GND Ground TRIGGER Trigger voltage input Output Output RESET Direct reset low input Control_Voltage Control voltage Threshold Threshold voltage input Discharge Discharging when output is low VCC Supply voltage  TRUTH TABLE DESCRIPTION THRESHOLD X >2/3×VCC <2/3×VCC X TRIGGER X >1/3×VCC >1/3×VCC <1/3×VCC  BLOCK DIAGRAM RESET L H H H OUTPUT L L STABLE H DISCHARGE ON ON STABLE OFF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R502-A12.D C555 CMOS IC  ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 16 V Input Voltage VTH, VTRIG, VRST -0.3 ~ VCC+0.3 ...