74AC240

74AC240 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (INVERTED) s s s s s s mantaining high speed operation similar to equivalent Bipolar Schottky TTL. s G control output governs four BUS BUFFERs. This device is designed to be used with 3 state s memory address drivers, etc. All inputs and outputs are equipped with DESCRIPTION protection circuits against static discharge, giving The AC240 is an advanced CMOS OCTAL BUS them 2KV ESD immunity and transient excess www.DataSheet4U.com BUFFER (3-STATE) fabricated with sub-micron voltage. 2 silicon gate and double-layer metal wiring C MOS technology. It is ideal for low power applications s HIGH SPEED: tPD = 4 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 240 IMPROVED LATCH-UP IMMUNITY B M (Plastic Package) (Micro Package) ORDER CODES : 74AC240B 74AC240M PIN CONNECTION AND IEC LOGIC SYMBOLS April 1997 1/8 74AC240 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 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND F UNCTIO N Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive S...