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The NTE74LS540 (inverting) and NTE74LS541 (non-inverting) are octal buffers and line drivers in a 20-lead DIP-type package designed to have the same performance as the NTE74LS240 and NTE74LS241 and at the same time offer a pin out having the inputs and outputs on opposite sides of the package. This arrangement greatly enhances printed circuit board layout. The three-state control gate is a 2-input NOR such that if either G1 or G2 are high, all eight outputs are in the high-impedance state.
3−state outputs drive bus lines or buffer memory address registers
PNP inputs reduce DC loading
Hysteresis at inputs improves noise margins
Data flow−thru pin out (all inputs on opposite side from outputs)
Absolute Maximum Ratings:
Supply voltage VCC: 7V
Input voltage: 7V
Power dissipation: 120mW
Operating temperature range, TA: 0°C to +70°C
Storage temperature range, Tstg: −65°C to +150°C
Voltage values are with respect to the network ground terminal
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