74LS240 数据手册 ( 数据表 ) - ON Semiconductor
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74LS240
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ON Semiconductor
The SN74LS240 and SN74LS244 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.
1. Hysteresis at Inputs to Improve Noise Margins
2. 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
3. Input Clamp Diodes Limit High-Speed Termination Effects
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