74ACQ244

74ACQ244, 74ACTQ244 Quiet SeriesTM Octal Buffer/Line Driver with 3-STATE Outputs

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74ACQ244, 74ACTQ244 Quiet SeriesTM Octal Buffer/Line Driver with 3-STATE Outputs

March 2007

74ACQ244, 74ACTQ244 Quiet SeriesTM Octal Buffer/Line Driver with 3-STATE Outputs
Features
ICC and IOZ reduced by 50% Guaranteed simultaneous switching noise level and

General Description
The ACQ/ACTQ244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter or receiver which provides improved PC board density. The ACQ/ ACTQ utilizes Fairchild Quiet SeriesTM technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet SeriesTM features GTOTM output control and undershoot corrector in addition to a split ground bus for superior performance.

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 AC/ACT244

Ordering Information
Order Number
74ACQ244SC 74ACQ244SJ 74ACTQ244SC 74ACTQ244SJ 74ACTQ244QSC 74ACTQ244MSA

Package Number
M20B M20D M20B M20D MQA20 MSA20

Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering number.

Connection Diagram

Pin Description
Pin Names
OE1, OE2 I0 I 7 O0 O 7 Inputs Outputs

Description
3-STATE Output Enable Inputs

FACTTM, Quiet SeriesTM, FACT Quiet SeriesTM, and GTOTM are trademarks of Fairchild Semiconductor Corporation. 1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3 www.fairchildsemi.com