74ACQ244_07 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – Quiet Series™ Octal Buffer/Line Driver with 3-STATE Outputs

March 2007
74ACQ244, 74ACTQ244
tm
Quiet Series™ Octal Buffer/Line Driver with 3-STATE
Outputs
Features
■ I_CC and I_OZ 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 AC/ACT244
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 Series™ technology to
guarantee quiet output switching and improved dynamic
threshold performance. FACT Quiet Series™ features
GTO™ output control and undershoot corrector in addi-
tion to a split ground bus for superior performance.
Ordering Information
Package
Order Number Number
Package Description
74ACQ244SC
74ACQ244SJ
74ACTQ244SC
M20B
M20D
M20B
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
74ACTQ244SJ
74ACTQ244QSC
74ACTQ244MSA
M20D
MQA20
MSA20
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
Description
OE₁, OE₂
I₀–I ₇
O₀–O ₇
3-STATE Output Enable Inputs
Inputs
Outputs
FACT™, Quiet Series™, FACT Quiet Series™, and GTO™ are trademarks of Fairchild Semiconductor Corporation.
©1989 Fairchild Semiconductor Corporation
74ACQ244, 74ACTQ244 Rev. 1.3
www.fairchildsemi.com