DESCRIPTION
Each control input governs four BUS BUFFERs. This integrated circuit has input and output PIN CONNECTION (top view) HCT240 HCT241 HCT244 characteristics that are fully compatible with 54/74 LSTTL logic families. M54/74HCT devices are designed to directly interface HSC2MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. These devices are designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage. September 1993 1/12 M54/M74HCT240/241/244 CHIP CARRIER HCT240 HCT241 HCT244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
(HCT240) 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) Positiv...