74ACQ544SC Fairchild Semiconductor, 74ACQ544SC Datasheet

IC TRANSCEIVER 8BIT N-INV 20SO

74ACQ544SC

Manufacturer Part Number
74ACQ544SC
Description
IC TRANSCEIVER 8BIT N-INV 20SO
Manufacturer
Fairchild Semiconductor
Series
74ACQr
Datasheet

Specifications of 74ACQ544SC

Logic Type
Transceiver, Inverting
Number Of Elements
1
Number Of Bits Per Element
8
Current - Output High, Low
24mA, 24mA
Voltage - Supply
2 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
© 2000 Fairchild Semiconductor Corporation
74ACQ544SC
74ACQ544SPC
74ACTQ544SC
74ACTQ544SPC
74ACQ544 • 74ACTQ544
Quiet Series
with 3-STATE Outputs
General Description
The ACQ/ACTQ544 is an inverting octal transceiver con-
taining two sets of D-type registers for temporary storage of
data flowing in either direction. Separate Latch Enable and
Output Enable inputs are provided for each register to per-
mit independent input and output control in either direction
of data flow. The 544 inverts data in both directions.
The ACQ/ACTQ utilizes Fairchild FACT Quiet Series
technology to guarantee quiet output switching and
improved dynamic threshold performance. FACT Quiet
Series features GTO
rector in addition to a split ground bus for superior perfor-
mance.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
FACT , Quiet Series , FACT Quiet Series
Order Number
Package Number
output control and undershoot cor-
M24B
N24C
M24B
N24C
Octal Registered Transceiver
and GTO
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
are trademarks of Fairchild Semiconductor Corporation.
DS010685
Features
Pin Descriptions
Guaranteed simultaneous switching noise level and
dynamic threshold performance
Guaranteed pin-to-pin skew AC performance
8-bit inverting octal latched transceiver
Separate controls for data flow in each direction
Back-to-back registers for storage
Outputs source/sink 24 mA
Pin Names
OEAB
OEBA
CEAB
CEBA
LEAB
LEBA
A
B
0
0
–A
–B
Package Description
7
7
A-to-B Output Enable Input (Active LOW)
B-to-A Output Enable Input (Active LOW)
A-to-B Enable Input (Active LOW)
B-to-A Enable Input (Active LOW)
A-to-B Latch Enable Input (Active LOW)
B-to-A Latch Enable Input (Active LOW)
A-to-B Data Inputs or
B-to-A 3-STATE Outputs
B-to-A Data Inputs or
A-to-B 3-STATE Outputs
Description
March 1990
Revised September 2000
www.fairchildsemi.com

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74ACQ544SC Summary of contents

Page 1

... Ordering Code: Order Number Package Number 74ACQ544SC M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74ACQ544SPC N24C 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide ...

Page 2

Logic Symbols IEEE/IEC Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. www.fairchildsemi.com Functional Description The ACQ/ACTQ544 contains two sets of eight D-type latches, ...

Page 3

Absolute Maximum Ratings Supply Voltage ( Input Diode Current ( 0. 0. Input Voltage ( Output Diode Current ( ...

Page 4

DC Electrical Characteristics for ACQ Symbol Parameter V Quiet Output OLV Minimum Dynamic Minimum HIGH Level IHD Dynamic Input Voltage V Maximum LOW Level ILD Dynamic Input Voltage Note 2: All outputs loaded; thresholds on input associated ...

Page 5

AC Electrical Characteristics for ACQ Symbol Parameter t Propagation Delay PLH t Transparent Mode PHL Propagation Delay PLH t LEBA, LEAB PHL n n ...

Page 6

AC Electrical Characteristics for ACTQ Symbol Parameter t Propagation Delay PLH t Transparent Mode PHL Propagation Delay PLH t LEBA, LEAB PHL n n ...

Page 7

FACT Noise Characteristics The setup of a noise characteristics measurement is critical to the accuracy and repeatability of the tests. The following is a brief description of the setup used to measure the noise characteristics of FACT. Equipment: Hewlett Packard ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide www.fairchildsemi.com Package Number M24B 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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