74ACT240 - STMicroelectronics

74ACT240 OCTAL BUS BUFFER

The ACT240 is an advanced CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications mantaining high speed operation similar to equivalent Bipolar Schottky TTL. G control output governs four BUS BUFFERs. This device is desibned to be used with 3 state memory .

Features

terface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS April 1997 1/8 74ACT240 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 Grou.