These octal buffers and line drivers are designed to have the performance of the popular SN74LS240 series and, at the same time, offer a pinout 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. The SN74LS540N offers inverting data at the outputs. The SN74LS540N is characterized for operation from 0°C to 70°C.
3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
P-N-P Inputs Reduce D-C Loading
Hysteresis at Inputs Improves Noise Margins
Data Flow-thru Pinout (All Inputs on Opposite Side from Outputs)
Datasheet Available:Texas Instruments SN74LS540N
20 pin DIP. Manufactured by Texas Instruments.