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| 74ACQ245 |
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tm March 2007 ©1989 Fairchild Semiconductor Corporation www.fairchildsemi.com 74ACQ245, 74ACTQ245 Rev. 1.4 74ACQ245, 74ACTQ245 Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Features ■ ICC and IOZ reduced by 50% ■ Guaranteed simultaneous switching noise level and dynamic threshold performance ■ Guaranteed pin-to-pin skew AC performance ■ Improved latch-up immunity ■ 3-STATE outputs drive bus lines or buffer memory address registers ■ Outputs source/sink 24mA ■ Faster prop delays than the standard ACT245 General Description The ACQ/ACTQ245 contains eight non-inverting bidirec- tional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24mA at both the A and B ports. The Transmit/Receive (T/R) input determines 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. The ACQ/ACTQ utilizes Fairchild Quiet Series™ technology to guarantee quiet output switching and improve dynamic threshold performance. FACT Quiet Series™ features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance. Ordering Information Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number. Pb-Free package per JEDEC J-STD-020B. Note: 1. Device available in Tape and Reel only. Order Number Package Number Package Description 74ACQ245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74ACQ245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74ACTQ245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74ACTQ245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74ACTQ245QSC MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide 74ACTQ245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74ACTQ245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74ACTQ245MTCX_NL(1) MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide FACT™, Quiet Series™, FACT Quiet Series™, and GTO™ are trademarks of Fairchild Semiconductor Corporation. |
