74ACQ244 鈥?74ACTQ244 Quiet Series錚?Octal Buffer/Line Driver with 3-STATE Outputs
July 1989
Revised November 1999
74ACQ244 鈥?74ACTQ244
Quiet Series錚?Octal Buffer/Line Driver
with 3-STATE Outputs
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 uti-
lizes Fairchild Quiet Series錚?technology to guarantee quiet
output switching and improved dynamic threshold perfor-
mance. FACT Quiet Series錚?features GTO錚?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 AC/ACT244
Ordering Code:
Order Number
74ACQ244SC
74ACQ244SJ
74ACQ244PC
74ACTQ244SC
74ACTQ244SJ
74ACTQ244QSC
74ACTQ244MSA
74ACTQ244PC
Package Number
M20B
M20D
N20A
M20B
M20D
MQA20
MSA20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
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鈥?Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150鈥?Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE
1
, OE
2
I
0
鈥揑
7
O
0
鈥揙
7
Description
3-STATE Output Enable Inputs
Inputs
Outputs
FACT錚? Quiet Series錚? FACT Quiet Series錚? and GTO錚?are trademarks of Fairchild Semiconductor Corporation.
漏 1999 Fairchild Semiconductor Corporation
DS010235
www.fairchildsemi.com