Datenblatt-Suchmaschine für elektronische Bauteile |
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LC245A Datenblatt(PDF) 2 Page - Texas Instruments |
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LC245A Datenblatt(HTML) 2 Page - Texas Instruments |
2 / 19 page www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) GQN OR ZQN PACKAGE (TOP VIEW) 1 2 3 4 A B C D E DIR OE A1 B1 To Seven Other Channels 1 2 19 18 Pin numbers shown are for the DB, DGV, DW, N, NS, PW, and RGY packages. SN74LVC245A OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCAS218T – JANUARY 1993 – REVISED FEBRUARY 2005 To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. TERMINAL ASSIGNMENTS 1 2 3 4 A A1 DIR VCC OE B A3 B2 A2 B1 C A5 A4 B4 B3 D A7 B6 A6 B5 E GND A8 B8 B7 FUNCTION TABLE INPUTS OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation LOGIC DIAGRAM (POSITIVE LOGIC) 2 |
Ähnliche Teilenummer - LC245A |
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Ähnliche Beschreibung - LC245A |
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