74ACTQ573SC

74ACTQ573SC Datasheet


74ACQ573<br>• 74ACTQ573 Quiet Octal Latch with 3-STATE Outputs

Part Datasheet
74ACTQ573SC 74ACTQ573SC 74ACTQ573SC (pdf)
Related Parts Information
74ACTQ573SCX 74ACTQ573SCX 74ACTQ573SCX
74ACTQ573QSCX 74ACTQ573QSCX 74ACTQ573QSCX
74ACTQ573QSC 74ACTQ573QSC 74ACTQ573QSC
74ACTQ573SJ 74ACTQ573SJ 74ACTQ573SJ
74ACTQ573MTCX 74ACTQ573MTCX 74ACTQ573MTCX
74ACTQ573PC 74ACTQ573PC 74ACTQ573PC
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74ACQ573
• 74ACTQ573 Quiet Octal Latch with 3-STATE Outputs
74ACQ573
• 74ACTQ573 Quiet Octal Latch with 3-STATE Outputs

The ACQ/ACTQ573 is a high-speed octal latch with buffered common Latch Enable LE and buffered common Output Enable OE inputs. The ACQ/ACTQ573 is functionally identical to the ACQ/ACTQ373 but with inputs and outputs on opposite sides of the package. The ACQ/ACTQ utilizes Fairchild’s Quiet technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet features output control and undershoot corrector in addition to a split ground bus for superior performance.
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 Inputs and outputs on opposite sides of package allow
easy interface with microprocessors s Outputs source/sink 24 mA
Ordering Code:

Order Number Package Number

Package Description
74ACQ573SC

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide
74ACQ573SJ

M20D
20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide
74ACQ573MTC

MTC20
20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
74ACQ573PC

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
74ACTQ573SC

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide
74ACTQ573SJ

M20D
20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide
74ACTQ573QSC

MQA20
20-Lead Quarter Size Outline Package QSOP , JEDEC MO-137, Wide
74ACTQ573MTC

MTC20
20-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
74ACTQ573PC

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Symbols

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

Data Inputs Latch Enable Input
3-STATE Output Enable Input
3-STATE Latch Outputs

Quiet FACT Quiet and are trademarks of Fairchild Semiconductor Corporation
2000 Fairchild Semiconductor Corporation DS010633
74ACQ573
• 74ACTQ573

Functional Description

The ACQ/ACTQ573 contains eight D-type latches with 3STATE output buffers. When the Latch Enable LE input is HIGH, data on the Dn inputs enters the latches. In this condition the latches are transparent, i.e., a latch output will change state each time its D-type input changes. When LE is LOW the latches store the information that was present on the D-type inputs at setup time preceding the HIGH-to-LOW transition of LE. The 3-STATE buffers are controlled by the Output Enable OE input. When OE is LOW, the buffers are enabled. When OE is HIGH the buffers are in the high impedance mode but this does not interfere with entering new data into the latches.

Logic Diagram

Truth Table

Inputs

Outputs

H = HIGH Voltage L = LOW Voltage Z = High Impedance X = Immaterial O0 = Previous O0 before HIGH-to-LOW transition of Latch Enable

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
74ACQ573
• 74ACTQ573

Absolute Maximum Ratings Note 1

Supply Voltage VCC DC Input Diode Current IIK

VI = −0.5V VI = VCC + 0.5V DC Input Voltage VI DC Output Diode Current IOK VO = −0.5V VO = VCC + 0.5V DC Output Voltage VO DC Output Source
or Sink Current IO DC VCC or Ground Current
per Output Pin ICC or IGND Storage Temperature TSTG DC Latchup Source
or Sink Current

Junction Temperature TJ PDIP
−0.5V to +7.0V
−20 mA +20 mA −0.5V to VCC + 0.5V
−20 mA +20 mA −0.5V to VCC + 0.5V
±50 mA
±50 mA −65°C to +150°C
±300 mA
140°C

Recommended Operating Conditions

Supply Voltage VCC ACQ
2.0V to 6.0V

ACTQ
4.5V to 5.5V

Input Voltage VI Output Voltage VO Operating Temperature TA Minimum Input Edge Rate
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Datasheet ID: 74ACTQ573SC 513113