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TC74HC299AF データシート(PDF) 1 Page - Toshiba Semiconductor |
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TC74HC299AF データシート(HTML) 1 Page - Toshiba Semiconductor |
1 / 10 page TC74HC299AP/AF 2007-10-01 1 TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC299AP,TC74HC299AF 8-Bit PIPO Shift Register with Asynchronous Clear The TC74HC299A is a high speed CMOS 8-BIT PIPO SHIFT REGISTER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. It has four modes (HOLD, SHIFT LEFT, SHIFT RIGHT and LOAD DATA) controlled by the two selection inputs (S0, S1). When one or both enable ( 1 G , 2 G ) are high, the eight I/O outputs are forced to the high-impedance state; however, sequential operation or clearing of the register is not affected. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features (Note 1) (Note 2) • High speed: fmax = 42 MHz (typ.) at VCC = 5 V • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Outputs drive capability : 15 LSTTL loads for QA to QH 10 LSTTL loads for QA’, QH’ • Symmetrical output impedance : |IOH| = IOL = 6 mA (min) For QA to QH |IOH| = IOL = 4 mA (min) For QA’, QH’ • Balanced propagation delays: tpLH ∼− tpHL • Wide operating voltage range: VCC (opr) = 2 to 6 V • Pin and function compatible with 74LS299 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. Pin Assignment TC74HC299AP TC74HC299AF Weight DlP20-P-300-2.54A : 1.30 g (typ.) SOP20-P-300-1.27A : 0.22 g (typ.) |
同様の部品番号 - TC74HC299AF |
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同様の説明 - TC74HC299AF |
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