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TC74AC245FF

製品説明
仕様・特性

TC74AC245,640P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC245P, TC74AC245F, TC74AC245FT TC74AC640P, TC74AC640F, TC74AC640FT Octal Bus Transceiver TC74AC245P/F/FT 3-State, Non-Inverting TC74AC640P/F/FT 3-State, Inverting The TC74AC245, 640 are advanced high speed CMOS OCTAL BUS TRANSCEIVERs fabricated with silicon gate and double-layer metal wiring C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. They are intended for two-way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input. The enable input ( G ) can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features (Note 1)(Note 2) • High noise immunity: VNIH = VNIL = 28% VCC (min) • TC74AC245FT, TC74AC640FT Low power dissipation: ICC = 8 μA (max) at Ta = 25°C • TC74AC245F, TC74AC640F High speed: tpd = 3.9 ns (typ.) at VCC = 5 V • TC74AC245P, TC74AC640P • Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines. ∼ Balanced propagation delays: tpLH − tpHL • Wide operating voltage range: VCC (opr) = 2 V to 5.5 V • Pin and function compatible with 74F245/640 Weight DIP20-P-300-2.54A SOP20-P-300-1.27A TSSOP20-P-0044-0.65A : 1.30 g (typ.) : 0.22 g (typ.) : 0.08 g (typ.) Note 1: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result. Note 2: All floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull down resistors. Start of commercial production 1986-05 1 2014-03-01

ブランド

TOSHIBA

会社名

株式会社 東芝セミコンダクター&ストレージ社

本社国名

日本

事業概要

半導体部門、DRAM、フラッシュメモリ、プロセッサ、汎用LSI

供給状況

 
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