74ACQ240, 74ACTQ240 Quiet Series™ Octal Buffer/Line Driver with 3-STATE Outputs
March 2007
©1989 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ACQ240, 74ACTQ240 Rev. 1.6
74ACQ240, 74ACTQ240
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
■
Inverting 3-STATE outputs drive bus lines or buffer
memory address registers
■
Outputs source/sink 24mA
■
Faster prop delays than the standard ACT240
General Description
The ACQ/ACTQ240 is an inverting 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's Quiet Series™ technol-
ogy 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 perfor-
mance.
Ordering Information
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
Connection Diagram Pin Descriptions
Order Number
Package
Number Package Description
74ACQ240SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ACQ240SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ240SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ACTQ240SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ240QSC MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" 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.
