74ACQ244, 74ACTQ244 Quiet Series™ Octal Buffer/Line Driver with 3-STATE Outputs
March 2007
©1989 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ACQ244, 74ACTQ244 Rev. 1.3
74ACQ244, 74ACTQ244
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
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
Connection Diagram Pin Description
Order Number
Package
Number Package Description
74ACQ244SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Body
74ACQ244SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ244SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Body
74ACTQ244SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ244QSC MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide
74ACTQ244MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
Pin Names Description
OE
1
, OE
2
3-STATE Output Enable Inputs
I
0
–I
7
Inputs
O
0
–O
7
Outputs
FACT™, Quiet Series™, FACT Quiet Series™, and GTO™ are trademarks of Fairchild Semiconductor Corporation.
