DESCRIPTION
All inputs are equipped with protection circuits against static discharge and transient excess voltage. INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN CONNECTIONS (top view) NC = No Internal Connection October 1992 1/9 M54/M74HC09 TRUTH TABLE A L L H H Z = HIGH IMPEDANCE IEC LOGIC SYMBOL B L H L H Y L L L Z PIN DESCRIPTION
PIN No 1, 4, 9, 12 2, 5, 10, 13 3, 6, 8, 11 7 14 SYMBOL 1A to 4A 1B to 4B 1Y to 4Y GND VCC NAME AND FUNCTION Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage LOGIC SYMBOL ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK ICC IO or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation 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 25 ± 50 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW o o C C ABSOLUTE MAXIMUM RATINGS
are those values beyond which damage to the device may occur.
STMicroelectronics
