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PDF ( 数据手册 , 数据表 ) 74ACTQ245

零件编号 74ACTQ245
描述 Quiet Series Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
制造商 Fairchild Semiconductor
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74ACTQ245 数据手册, 描述, 功能
July 1989
Revised November 1999
74ACQ245 74ACTQ245
Quiet SeriesOctal Bidirectional Transceiver
with 3-STATE Inputs/Outputs
General Description
The ACQ/ACTQ245 contains eight non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus-
oriented applications. Current sinking capability is 24 mA at
both the A and B ports. The Transmit/Receive (T/R) input
determines the direction of data flow through the bidirec-
tional transceiver. Transmit (active-HIGH) enables data
from A Ports to B Ports; Receive (active-LOW) 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.
The ACQ/ACTQ utilizes Fairchild Quiet Seriestechnol-
ogy to guarantee quiet output switching and improve
dynamic threshold performance. FACT Quiet Seriesfea-
tures GTOoutput control and undershoot corrector in
addition to a split ground bus for superior performance.
Features
s ICC and IOZ reduced by 50%
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
s Guaranteed pin-to-pin skew AC performance
s Improved latch-up immunity
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs source/sink 24 mA
s Faster prop delays than the standard ACT245
Ordering Code:
Order Number Package Number
Package Description
74ACQ245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74ACQ245SJ
M20D
20-Lead Small Outline Package (SOP) EIAJ TYPE II, 5.3mm Wide
74ACQ245PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
74ACTQ245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
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, 0.150Wide
74ACTQ245MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACTQ245PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
FACT, Quiet Series, FACT Quiet Series, and GTOare trademarks of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS010236
www.fairchildsemi.com







74ACTQ245 pdf, 数据表
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M20D
www.fairchildsemi.com
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