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16-Bit Buffer/Line Driver with 3-STATE Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74ACTQ16541SSC 데이터시트, 핀배열, 회로
June 1991
Revised November 1999
74ACTQ16541
16-Bit Buffer/Line Driver with 3-STATE Outputs
General Description
The ACTQ16541 contains sixteen non-inverting buffers
with 3-STATE outputs designed to be employed as a mem-
ory and address driver, clock driver, or bus oriented trans-
mitter/receiver. The device is byte controlled. Each byte
has separate 3-STATE control inputs which can be shorted
together for full 16-bit operation.
The ACTQ16541 utilizes Fairchild Quiet Seriestechnol-
ogy to guarantee quiet output switching and improved
dynamic threshold performance. FACT Quiet Seriesfea-
tures GTOoutput control for superior performance.
Features
s Utilizes Fairchild FACT Quiet Series technology
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
s Guaranteed pin-to-pin output skew
s Separate control logic for each byte
s 16-bit version of the ACTQ541
s Outputs source/sink 24 mA
s Additional specs for Multiple Output Switching
s Output loading specs for both 50 pF and 250 pF loads
Ordering Code:
Order Number Package Number
Package Description
74ACTQ16541SSC
74ACTQ16541MTD
MS48A
MTD48
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300Wide
48-Lead Thin Shrink Small Outline Package (TSSOP), MO-153, 6.1mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
OEn
I0I15
O0O15
Description
Output Enable Input (Active LOW)
Inputs
Outputs
FACT, Quiet Series, FACT Quiet Seriesand GTOare trademarks of Fairchild Semiconductor Corporation
© 1999 Fairchild Semiconductor Corporation DS010936
www.fairchildsemi.com


74ACTQ16541SSC 데이터시트, 핀배열, 회로
Functional Description
The ACTQ16541 contains sixteen non-inverting buffers
with 3-STATE standard outputs. The device is byte con-
trolled with each byte functioning identically, but indepen-
dent of the other. The control pins can be shorted together
to obtain full 16-bit operation. The 3-STATE outputs are
controlled by an Output Enable (OEn) input for each byte.
When OEn is LOW, the outputs are in 2-state mode. When
OEn is HIGH, the outputs are in the high impedance mode,
but this does not interfere with entering new data into the
inputs.
Logic Diagram
Truth Tables
Inputs
OE1
OE2
LL
HX
XH
LL
Inputs
OE3
L
OE4
L
HX
XH
LL
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
I0–I7
H
X
X
L
I8–I15
H
X
X
L
Outputs
O0–O7
H
Z
Z
L
Outputs
O8–O15
H
Z
Z
L
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74ACTQ16541SSC driver

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16-Bit Buffer/Line Driver with 3-STATE Outputs - Fairchild Semiconductor