(China (Mainland))
Product Summary
The 74LS240 is an octal buffer and line driver designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G) inputs, and complementary output-control (G and G) inputs. The 74LS240 features high fan-out, improved fan-in, and 400-mV noise margin. The 74LS240 can be used to drive terminated lines down to 133Ω.
Parametrics
74LS240 absolute maximum ratings: (1)Supply voltage, VCC: 7 V; (2)Input voltage, VI: 7 V; (3)Off-state output voltage: 5.5 V; (4)Package thermal impedance, θJA: DB package 70℃/W; DW package 58℃/W; N package 69℃/W; NS package 60℃/W; (5)Storage temperature range, Tstg: -65℃ to 150℃.
Features
74LS240 features: (1)3-State Outputs Drive Bus Lines or Buffer Memory Address Registers; (2)PNP Inputs Reduce DC Loading; (3)Hysteresis at Inputs Improves Noise Margins.
Diagrams
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 74LS240 |
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Negotiable |
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74LS00 |
Other |
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74LS00N |
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74LS01 |
Other |
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Negotiable |
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74LS03 |
Other |
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Negotiable |
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74LS05 |
Other |
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Negotiable |
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74LS08 |
Other |
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Negotiable |
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