DESCRIPTION
PIN CONNECTION AND IEC LOGIC SYMBOLS February 1999 1/10 74LVQ273 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 11 SYMBOL CLEAR Q0 to Q7 NAME AND FUNCT ION Asyncronous Master Reset (Active LOW) Flip-Flop Outputs D0 to D7 Data Inputs CLOCK Clock Input (LOW-to-HIGH, EdgeTriggered) Ground (0V) Positive Supply Voltage 10 20 GND VCC TRUTH TABLE INPUTS CL EAR L H H H X:Don’t Care OUT PUT S CLO CK X Q L L H Qn F UNCTIO N CLEAR D X L H X NO CHANGE LOGIC DIAGRAM Thislogic diagram has notbe used to esimate propagation delays 2/10 74LVQ273 ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 50 ± 400 -65 to +150 300 Unit V V V mA mA mA mA o o ICC or IGND DC VCC or Ground Current C C ABSOLUTE MAXIMUM RATINGS
are those values beyond which damage to the device may occur.
STMicroelectronics
