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 data bus or from the internal storage Registers Output-enable (OEAB and OEBA) inputs are provided to control the transceiver functions. The select-control (SAB and SBA) inputs are provided to select whether real-time or stored data is transferred. A low input level selects real-time data, and a high input level selects stored data. Figure 1 illustrates the four fundamental bus-management functions that CAN be performed with the 'ABT651 devices.
Data on the A or B bus, or both, CAN be stored in the internal D Flip-Flops by low-to-high transitions at the appropriate Clock (CLKAB or CLKBA) inputs, regardless of the select- or enable-control pins. When SAB and SBA are in the real-time transfer mode, it also is possible to store data without using the internal D-type Flip-Flops by simultaneously enabling OEAB and OEBA. In this configuration, each output reinforces its input. When all the other data sources to the two sets of bus lines are at high impedance, each set remains at its last state.
To ensure the high-impedance state during power up or power down, OEBA 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 (B to A). OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver (A to B).
The SN54ABT651 is characterized for operation over the full military temperature range of -55C to 125C. The SN74ABT651 is characterized for operation from -40C to 85C.
The data output functions may be enabled or disabled by a variety of level combinations at OEAB or OEBA. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition of the Clock inputs.
When select control is low, Clocks CAN occur simultaneously if allowances are made for propagation delays from A to B (B to A) plus setup and hold times. When select control is high, Clocks must be staggered to load both Registers Figure 1. Bus-Management Functions
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ABT651DWG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74ABT651DW Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SOIC -40 to 85
SN74ABT651NTE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDIP24, ROHS COMPLIANT, PLASTIC, DIP-24
SN74ABT651DBLE Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SSOP -40 to 85
SN74ABT651NSR Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74ABT651DBRE4 Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SSOP -40 to 85
SN74ABT651NSRG4 Texas Instruments IC ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24, Bus Driver/Transceiver
SN74ABT651DBR Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SSOP -40 to 85
SN74ABT651NSRE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74ABT651DBRG4 Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SSOP -40 to 85
SN74ABT651NT Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-PDIP -40 to 85
SN74ABT651DWR Texas Instruments Octal Bus Transceivers And Registers With 3-State Outputs 24-SOIC -40 to 85
SN74ABT651DWRE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74ABT651DWRG4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74ABT651DWE4 Texas Instruments ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24, GREEN, PLASTIC, SOIC-24
SN74ABT651 's PackagesSN74ABT651 's pdf datasheet
SN74ABT651DBLE SSOP
SN74ABT651DBR SSOP
SN74ABT651DBRE4 SSOP
SN74ABT651DBRG4 SSOP
SN74ABT651DW SOIC
SN74ABT651DWE4 SOIC
SN74ABT651DWG4 SOIC
SN74ABT651DWR SOIC
SN74ABT651DWRE4 SOIC
SN74ABT651DWRG4 SOIC
SN74ABT651NSR SO
SN74ABT651NSRE4 SO
SN74ABT651NSRG4 SO
SN74ABT651NT PDIP
SN74ABT651NTE4 PDIP




SN74ABT651 Pinout, Pinouts
SN74ABT651 pinout,Pin out
This is one package pinout of SN74ABT651,If you need more pinouts please download SN74ABT651's pdf datasheet.

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