The 74LS240 are Octal Buffers and Line Drivers designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers which provide improved PC board density. The following are the features:-
• Hysteresis at Inputs to Improve Noise Margins
• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
• Input Clamp Diodes Limit High-Speed Termination Effects
Specification:-
| Symbol | Parameter | Min | Nom | Max | Units |
| VCC | Supply Voltage | 4.5 | 5 | 5.5 | V |
| TA | Operating Ambient Temperature Range | -55 | 25 | 125 | °C |
| IOH | Output Current — High | –12 | m A | ||
| IOL | High-level Output Current | 12 | m A |
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