74ACQ245 鈥?74ACTQ245 Quiet Series樓 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
July 1989
Revised March 2005
74ACQ245 鈥?74ACTQ245
Quiet Series樓 Octal 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 Series
樓
technol-
ogy to guarantee quiet output switching and improve
dynamic threshold performance. FACT Quiet Series
樓
fea-
tures GTO
樓
output control and undershoot corrector in
addition to a split ground bus for superior performance.
Features
s
I
CC
and I
OZ
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
74ACQ245SC
74ACQ245SJ
74ACQ245PC
74ACTQ245SC
74ACTQ245SJ
74ACTQ245QSC
74ACTQ245MSA
74ACTQ245MTC
74ACTQ245MTCX_NL
(Note 1)
74ACTQ245PC
Package
Number
M20B
M20D
N20A
M20B
M20D
MQA20
MSA20
MTC20
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Pb-Free 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), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1:
鈥淿NL鈥?indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
FACT
樓
, Quiet Series
樓
, FACT Quiet Series
樓
, and GTO
樓
are trademarks of Fairchild Semiconductor Corporation.
漏 2005 Fairchild Semiconductor Corporation
DS010236
www.fairchildsemi.com
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