Octal BUFFERS AND LINE Drivers with 3-STATE Outputs
The SN54/74LS540 and SN54/74LS541 are Octal buffers and line Drivers with the same functions as the LS240 and LS241, but with pinouts on the opposite side of the package. These device types are designed to be used as memory address Drivers, clock Drivers and bus-oriented transmitters/receivers. These devices are especially useful as output ports for the microprocessors, allowing ease of layout and greater PC board density.
• Hysteresis at Inputs to Improve Noise Margin • PNP Inputs Reduce Loading • 3-State Outputs Drive Bus Lines • Inputs and Outputs Opposite Side of Package, Allowing Easier Interface to Microprocessors • Input Clamp Diodes Limit High-Speed Termination Effects
The 74F240, 74F241 and 74F244 are Octal buffers and line Drivers designed to be employed as memory and address Drivers, clock Drivers and bus-oriented transmitters/receiv ers which provide improved PC and board density.
■3-STATE Outputs drive bus lines or buffer memoryaddress registers
■Outputs sink 64 mA (48 mA mil)
■12 mA source current
■Input clamp diodes limit high-speed termination effects