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Description : Quiet SeriesOctal Registered Transceiver with 3-STATE Outputs

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

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

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

Fairchild
Fairchild Semiconductor
Description : Quiet Series Octal Buffer/Line Driver with 3-STATE Outputs

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

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
   

Description : Quiet SeriesOctal Bidirectional Transceiver with 8-Bit Parity Generator/Checker and 3-STATE Outputs

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) : 74ACTQ563 74ACTQ563PC
Fairchild
Fairchild Semiconductor
Description : Quiet SeriesOctal Latch with 3-STATE Outputs

General Description
The ACTQ563 is a high speed Octal latch with buffered common Latch Enable (LE) and buffered common Output Enable (OE) inputs. The ACTQ563 is functionally identical to the ACTQ573, but with inverted Outputs. The ACTQ563 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
■ 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
■ Inputs and Outputs on opposite sides of package allow easy interface with microprocessors
Outputs source/sink 24 mA
■ Faster prop delays than standard ACT563
■ Functionally identical to the ACTQ573 but with inverted Outputs

Description : Quiet SeriesOctal Registered Transceiver with 3-STATE Outputs

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
   

Description : Quiet SeriesOctal 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 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 addi tion 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 24mA
■ Faster prop delays than the standard AC/ACT244

Description : Quiet Series Octal Transparent Latch with 3-STATE Outputs

General Description
The ACTQ533 consists of eight latches with 3-STATE Outputs for bus organized system applications. The flip-flops appear transparent to the data when Latch Enable (LE) is HIGH. When LE is LOW, the data satisfying the input timing requirements is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH, the bus output is in the high impedance state.
The ACTQ533 utilizes Fairchild 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
■ Eight latches in a single package
3-STATE Outputs drive bus lines or buffer memory
   address registers
Outputs source/sink 24 mA
■ Inverted version of the ACTQ373
■ 4 kV minimum ESD immunity

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