M74HC240HV Datasheet | STMicroelectronics

DESCRIPTION The M54/74HC240HV and HC241HV are high speed CMOS OCTAL BUS BUFFERs fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL bined with true CMOS low power consumption. Performing the same function of their non HV counterpart, they have a particularl input configuration which allows all inputs to be driven by PIN CONNECTION (top view) HC240HV HC241HV logic levels exceeding the supply voltage. This makes them particularly suitable in systems where mixed 3V/5V logic devices need to be interfaced. All inputs are equipped with protection circuits against static discharge and transient excess voltage. NOTE: BOTH DEVICES DO NOT MEET 2KV ESD RATING April 1993 1/10 M54/M74HC240HV/241HV INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION (HC240HV) PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND V CC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage PIN DESCRIPTION (HC241HV) PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage IEC LOGIC SYMBOLS HC240HV HC241HV 2/10 M54/M74HC240HV/241HV TRUTH TABLE INPUT G L L H X: ”H” or ”L” Z: High impedance OUTPUT An L H X Yn (HC240HV) H L Z Yn (HC241HV) L H Z G (HC241) H H L ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to 13 -0.5 to 13 -0.5 to VCC + 0.5 - 20 ± 100 ± 35 ± 100 500 (- ) -65 to +150 300 Unit...