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TC7MH257FK Datasheet(PDF) 1 Page - Toshiba Semiconductor |
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TC7MH257FK Datasheet(HTML) 1 Page - Toshiba Semiconductor |
1 / 7 page TC7MH257FK 2007-10-19 1 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MH257FK Quad 2-Channel Multiplexer (3-State) The TC7MH257FK is an advanced high speed CMOS multiplexer fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent bipolar schottky TTL while maintaining the CMOS low power dissipation. It is composed of four independent 2-channel multiplexers with common SELECT and OUTPUTENABLE (OE). If OE is set low, the outputs are held in a high-impedance state. When SELECT is set low, “A” data inputs are enabled. Conversely, when SELECT is high, “B” data inputs are enabled. 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 = 3.6 ns (typ.) (VCC = 5 V) • Low power dissipation: ICC = 4 μA (max) (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) = 2~5.5 V • Low noise: VOLP = 0.8 V (max) • Pin and function compatible with 74ALS257 Weight: 0.02 g (typ.) |
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