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TC74VHC240FK Datasheet(PDF) 1 Page - Toshiba Semiconductor |
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TC74VHC240FK Datasheet(HTML) 1 Page - Toshiba Semiconductor |
1 / 10 page TC74VHC240,244F/FT/FK 2007-10-01 1 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC240F,TC74VHC240FT,TC74VHC240FK TC74VHC244F,TC74VHC244FT,TC74VHC244FK Octal Bus Buffer TC74VHC240F/FT/FK Inverted, 3-State Outputs TC74VHC244F/FT/FK Non-Inverted, 3-State Outputs The TC74VHC240 and 244 are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The 74VHC240 is an inverting 3-state buffer having two active-low output enables. The TC74VHC244 is a non-inverting 3-state buffer, and has two active-low output enables. These devices are designed to be used with 3-state memory address drivers, etc. An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. Features • High speed: tpd = 3.9 ns (typ.) at VCC = 5 V • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Power down protection is provided on all inputs. • Balanced propagation delays: tpLH ∼− tpHL • Wide operating voltage range: VCC (opr) = 2 to 5.5 V • Low noise: VOLP = 0.9 V (max) • Pin and function compatible with 74ALS240/244 Weight SOP20-P-300-1.27A : 0.22 g (typ.) TSSOP20-P-0044-0.65A : 0.08 g (typ.) VSSOP20-P-0030-0.50 : 0.03 g (typ.) TC74VHC240F, TC74VHC244F TC74VHC240FT, TC74VHC244FT TC74VHC240FK, TC74VHC244FK |
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