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74LCXP16245 データシート(PDF) 2 Page - Fairchild Semiconductor |
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74LCXP16245 データシート(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page www.fairchildsemi.com 2 Connection Diagram Truth Tables H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Note 2: A and B port inputs are still active. Functional Descriptions The LCXP16245 contains sixteen non-inverting bidirec- tional buffers with 3-STATE outputs. the device is byte con- trolled. Each byte has separate control inputs which can be shorted together for full 16-bit operation. The T/R inputs determine the direction of data flow through the device. The OE inputs disable both the A and B ports by placing them in a high impedance state. The pulldown resistor (30K Ω normal) to GND is active only when the outputs are 3-STATED (OE = HIGH). When the outputs become active (OE = LOW) the resistor is removed from the circuit. Logic Diagram Inputs Outputs OE1 T/R1 L L Bus B0–B7 Data to Bus A0–A7 L H Bus A0–A7 Data to Bus B0–B7 H X HIGH Z State on A0–A7, B0–B7 (Note 2) Inputs Outputs OE2 T/R2 L L Bus B8–B15 Data to Bus A8–A15 L H Bus A8–A15 Data to Bus B8–B15 H X HIGH Z State on A8–A15, B8–B15 (Note 2) |
同様の部品番号 - 74LCXP16245 |
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同様の説明 - 74LCXP16245 |
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