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Part Name(s) : 74ACQ544 74ACTQ544 74ACQ544SC 74ACTQ544SC 74ACQ544SCX 74ACQ544SPC 74ACTQ544SCX 74ACTQ544SPC Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Registered Transceiver with 3-STATE Outputs View

General Description
The ACQ/ACTQ544 is an inverting Octal transceiver containing 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 permit 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 output control and undershoot corrector in addition to a split ground bus for superior performance.

Features
■ 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

Part Name(s) : 54ACTQ646 54ACTQ646LMQB 54ACTQ646SDM 54ACTQ646SDMQB 54ACTQ646W-QMLV 5962-9219601M3A 5962-9219601MKA 5962-9219601MLA 54ACTQ646FMQB National-Semiconductor
National ->Texas Instruments
Description : Quiet Series Octal Transceiver/Register with 3-STATE Outputs View

General Description
The ACTQ646 consist of registered bus transceiver circuits, with Outputs, D-type flip-flops, and control circuitry providing multiplexed transmission of data directly from the input bus or from the internal storage registers. Data on the A or B bus will be loaded into the respective registers on the LOW-to-HIGH transition of the appropriate clock pin (CPAB or CPBA). The four fundamental handling functions available are illustrated in Figures 1, 2, 3, 4.
The ACTQ utilizes FSC Quiet Series technology to guarantee Quiet output switching and improved dynamic threshold performance. FACT Quiet Series™ features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance.

Features
■ Guaranteed simultaneous switching noise level and dynamic threshold performance
■ Independent registers for A and B busses
■ Multiplexed real-time and stored data transfers
■ 300 mil slim dual-in-line package
Outputs source/sink 24 mA
■ Faster prop delays than the standard AC/ACT646
■ 4 kV minimum ESD immunity
■ Standard Microcircuit Drawing (SMD) 5962-9219601

Part Name(s) : 74ACQ657CW Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and 3-STATE Outputs View

General Description
The ACQ/ACTQ657 contains eight non-inverting buffers with 3-STATE Outputs and an 8-bit parity generator/checker. Intended for bus oriented applications, the device combines the 245 and the 280 functions in one package.
The ACQ/ACTQ utilizes Fairchild Quiet Series™ technology to guarantee Quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO™ output control and undershoot corrector in addition to a split ground bus or superior performance.

Features
■ Guaranteed simultaneous switching noise level and
   dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Combines the 245 and the 280 functions in one package
■ 300 mil 24-pin slim dual-in-line package
Outputs source/sink 24 mA
■ ACTQ has TTL-compatible inputs

Part Name(s) : 74ACQ244PC 74ACTQ244PC Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Buffer/Line Driver with 3-STATE Outputs View

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 utilizes Fairchild Quiet Series technology to guarantee Quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO output control and undershoot corrector in addition to a split ground bus for superior performance.

Features
■ ICC and IOZ reduced by 50%
■ Guaranteed simultaneous switching noise level and dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Improved latch-up immunity
3-STATE Outputs drive bus lines or buffer memory address registers
Outputs source/sink 24 mA
■ Faster prop delays than the standard AC/ACT244


Part Name(s) : 74ACQ543 74ACQ543SC 74ACQ543SCX 74ACQ543SPC 74ACTQ543 74ACTQ543QSC 74ACTQ543QSCX 74ACTQ543SC 74ACTQ543SCX 74ACTQ543SPC Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Registered Transceiver with 3-STATE Outputs View

General Description
The ACQ/ACTQ543 is a non-inverting Octal transceiver containing 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 permit independent input and output control in either direction of data flow.
   
Features
■ Guaranteed simultaneous switching noise level and
    dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ 8-bit Octal latched transceiver
■ Separate controls for data flow in each direction
■ Back-to-back registers for storage
Outputs source/sink 24 mA
■ 300 mil slim PDIP/SOIC
   

Part Name(s) : 74ACTQ541PC 74ACTQ541SCX_NL Fairchild
Fairchild Semiconductor
Description : Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs View

General Description
The 74ACTQ541 is an Octal buffer/line driver designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers.
This device is similar in function to the 74ACTQ244 while providing flow-through architecture (inputs on opposite side from Outputs). This pinout arrangement makes this device especially useful as an output port for microprocessors, allowing ease of layout and greater PC board density. The 74ACTQ541 utilizes FACT Quiet Series¥ technology to guarantee Quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO¥ output control and undershoot corrector in addition to split ground bus for superior performance.

Features
■ ICC and IOZ reduced by 50%
■ Guaranteed simultaneous switching noise level and
dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Inputs and Outputs on opposite sides of package for
easy board layout
■ Non-inverting 3-STATE Outputs
■ Guaranteed 4 kV minimum ESD immunity
■ TTL compatible inputs
Outputs source/sink 24 mA

Part Name(s) : 74ACQ240CW 74ACTQ240CW Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Buffer/Line Driver with 3-STATE Outputs View

General Description
The ACQ/ACTQ240 is an inverting 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 utilizes Fairchild’s Quiet Series technology to guarantee Quiet output switching and improve dynamic threshold performance. FACT Quiet Series features GTO output control and undershoot corrector in addition to a split ground bus for superior performance.
   
Features
■ ICC and IOZ reduced by 50%
■ Guaranteed simultaneous switching noise level and
    dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Improved latch-up immunity
■ Inverting 3-STATE Outputs drive bus lines or buffer
    memory address registers
Outputs source/sink 24 mA
■ Faster prop delays than the standard ACT240
   

Part Name(s) : 54ACQ244F 54ACTQ244F 54ACQ244 54ACTQ244 TI
Texas Instruments
Description : Quiet Series Octal Buffer/Line Driver with TRI-STATE Outputs View

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 utilizes TI Quiet Series technology to ensure Quiet output switching and improved dynamic threshold performance. FACT Quiet Series™ features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance.

FEATURES
• ICC and IOZ Reduced by 50%
• Ensured Simultaneous Switching Noise Level
   and Dynamic Threshold Performance
• Improved Latch-Up Immunity
• TRI-STATE Outputs Drive Bus Lines or Buffer
   Memory Address Registers
Outputs Source/Sink 24 mA
• Faster Prop Delays than the Standard
   AC/ACT244
• 4 kV Minimum ESD Immunity
• Standard Microcircuit Drawing (SMD)
   – ACTQ244: 5962-92186
   – ACQ244: 5962-92176

Part Name(s) : 74ACQ464ASPC 74ACQ646 74ACQ646ASPC 74ACQ646SC 74ACQ646SCX 74ACTQ464ASPC 74ACTQ646 74ACTQ646ASPC 74ACTQ646SC 74ACTQ646SCX Fairchild
Fairchild Semiconductor
Description : Quiet Series Octal Transceiver/Register with 3-STATE Outputs View

General Description
The ACQ/ACTQ646 consist of registered bus transceiver circuits, with Outputs, D-type flip-flops, and control circuitry providing multiplexed transmission of data directly from the input bus or from the internal storage registers.

Features
■ Guaranteed simultaneous switching noise level and
   dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Independent registers for A and B busses
■ Multiplexed real-time and stored data transfers
■ 300 mil slim dual-in-line package
Outputs source/sink 24 mA
■ Faster prop delays than the standard AC/ACT646

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