M74HC7244

M74HC7244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) s HIGH SPEED: tPD = 13ns (TYP.) at VCC = 6V s LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY: VH = 1.2 V (TYP.) at VCC = 6V s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 7244 DESCRIPTION The 74HC7244 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. G control input governs four BUS BUFFERs. DIP SOP TSSOP ORDER CODES PACKAGE TUBE DIP SOP TSSO P M74HC7244B1R M74HC7244M1R T &R M74HC7244RM13TR M74HC7244TTR This device have a hysteresis characteristics with each input so can be used as a line receiver, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/10 M74HC7244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL NAME AND FUNCTION 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 Output Enable Input Data Inputs Data Outputs Data Inputs 1Y1 to 1Y4 Data Outputs 2G GND VCC Output Enable Input Ground (0V) Positive Supply Voltage TRUTH TABLE G X : Don’t Care Z : High Impedance L L H INPUTS An L H X OUTPUT Yn L H Z ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage -0.5 ...