74ACQ245, 74ACTQ245
Quiet Series™ Octal Bidirectional Transceiver with
3-STATE Inputs/Outputs
Features
General Description
■ ICC and IOZ reduced by 50%
■ Guaranteed simultaneous switching noise level and
The ACQ/ACTQ245 contains eight non-inverting bidirectional 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 (activeLOW) 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.
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
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
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
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
All packages are lead free per JEDEC: J-STD-020B standard.
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
January 2008
