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74LVQ245 Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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74LVQ245 Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page © 2001 Fairchild Semiconductor Corporation DS011357 www.fairchildsemi.com February 1992 Revised June 2001 74LVQ245 Low Voltage Octal Bidirectional Transceiver with 3-STATE Outputs General Description The LVQ245 contains eight non-inverting bidirectional buff- ers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 12 mA at both the A and B ports. The Transmit/Receive (T/R) input deter- mines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition. Features s Ideal for low power/low noise 3.3V applications s Implements patented EMI reduction circuitry s Available in SOIC JEDEC, SOIC EIAJ and QSOP packages s Guaranteed simultaneous switching noise level and dynamic threshold performance s Improved latch-up immunity s Guaranteed incident wave switching into 75 Ω s 4 kV minimum ESD immunity Ordering Code Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC Truth Table H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Connection Diagram Pin Descriptions Order Number Package Number Package Description 74LVQ245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LVQ245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVQ245QSC MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide Inputs Outputs OE T/R L L Bus B Data to Bus A L H Bus A Data to Bus B H X HIGH-Z State Pin Names Description OE Output Enable Inputs T/R Transmit/Receive Input A0–A7 Side A Inputs or 3-STATE Outputs B0–B7 Side B Inputs or 3-STATE Outputs |
Numéro de pièce similaire - 74LVQ245 |
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Description similaire - 74LVQ245 |
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