Octal Bus Transceivers And Registers With 3-State Outputs

These devices consist of Bus Transceiver circuits, D-type Flip-Flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal Registers Data on the A or B bus is clocked into the Registers on the low-to-high transition of the appropriate Clock (CLKAB or CLKBA) input. Figure 1 illustrates the four fundamental bus-management functions that CAN be performed with the ?ABT646.
Output-enable () and direction-control (DIR) inputs are provided to control the transceiver functions. In the transceiver mode, data present at the high-impedance port may be stored in either Register or in both.
The select-control (SAB and SBA) inputs CAN multiplex stored and real-time (transparent mode) data. The direction control (DIR) determines which bus will receive data when is low. In the isolation mode ( high), A data may be stored in one Register and/or B data may be stored in the other Register
When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B, may be driven at a time.
To ensure the high-impedance state during power up or power down, should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74ABT646 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54ABT646 is characterized for operation over the full military temperature range of -55?C to 125?C. The SN74ABT646 is characterized for operation from -40?C to 85?C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ABT646DGVRG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TVSOP-24
SN74ABT646PWE4 Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-TSSOP -40 to 85
SN74ABT646ADGVR Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-TVSOP -40 to 85
SN74ABT646ANSRE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74ABT646APWRG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TSSOP-24
SN74ABT646DW Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SOIC -40 to 85
SN74ABT646PWG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TSSOP-24
SN74ABT646ADGVRE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TVSOP-24
SN74ABT646ANSRG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74ABT646DGVRE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, TVSOP-24
SN74ABT646 's PackagesSN74ABT646 's pdf datasheet
SN74ABT646DBLE SSOP
SN74ABT646DBR SSOP
SN74ABT646DBRE4 SSOP
SN74ABT646DBRG4 SSOP
SN74ABT646DGVR TVSOP
SN74ABT646DGVRE4 TVSOP
SN74ABT646DGVRG4 TVSOP
SN74ABT646DW SOIC
SN74ABT646DWE4 SOIC
SN74ABT646DWG4 SOIC
SN74ABT646DWR SOIC
SN74ABT646DWRE4 SOIC
SN74ABT646DWRG4 SOIC
SN74ABT646NT PDIP
SN74ABT646NTE4 PDIP
SN74ABT646PW TSSOP
SN74ABT646PWE4 TSSOP
SN74ABT646PWG4 TSSOP
SN74ABT646PWLE TSSOP
SN74ABT646PWR TSSOP
SN74ABT646PWRE4 TSSOP
SN74ABT646PWRG4 TSSOP




SN74ABT646 Pinout, Pinouts
SN74ABT646 pinout,Pin out
This is one package pinout of SN74ABT646,If you need more pinouts please download SN74ABT646's pdf datasheet.

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