Scan Test Devices With 18-Bit Bus Transceivers

The ABT18245A scan test devices with 18-bit Bus Transceivers are members of the Texas Instruments SCOPETM testability integrated- circuit family. This family of devices supports IEEE Standard 1149.1-1990 boundary scan to facilitate testing of complex circuit-board assemblies. Scan access to the test circuitry is accomplished via the 4-wire test access port (TAP) Interface
In the normal mode, these devices are 18-bit noninverting Bus Transceivers They CAN be used either as two 9-bit transceivers or one 18-bit transceiver. The test circuitry CAN be activated by the TAP to take snapshot samples of the data appearing at the device pins or to perform a self-test on the boundary-test cells. Activating the TAP in the normal mode does not affect the functional operation of the SCOPETM Bus Transceivers
Data flow is controlled by the direction-control (DIR) and output-enable (OE) inputs. Data transmission is allowed from the A bus to the B bus or from the B bus to the A bus, depending on the Logic level at DIR. OE CAN be used to disable the device so that the buses are effectively isolated.
In the test mode, the normal operation of the SCOPETM Bus Transceivers is inhibited and the test circuitry is enabled to observe and control the input/output (I/O) boundary of the device. When enabled, the test circuitry performs boundary-scan test operations according to the protocol described in IEEE Standard 1149.1-1990.
Four dedicated test pins observe and control the operation of the test circuitry: test-data input (TDI), test-data output (TDO), test-mode select (TMS), and test Clock (TCK). Additionally, the test circuitry performs other testing functions such as parallel-signature analysis (PSA) on data inputs and pseudo-random pattern generation (PRPG) from data outputs. All testing and scan operations are synchronized to the TAP Interface
The SN54ABT18245A is characterized for operation over the full military temperature range of -55C to 125C. The SN74ABT18245A is characterized for operation from -40C to 85C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ABT18245ADLR Texas Instruments Scan Test Devices With 18-Bit Bus Transceivers 56-SSOP -40 to 85
SN74ABT18245ADLG4 Texas Instruments Scan Test Devices With 18-Bit Bus Transceivers 56-SSOP -40 to 85
SN74ABT18245ADL Texas Instruments Scan Test Devices With 18-Bit Bus Transceivers 56-SSOP -40 to 85
SN74ABT18245ADLRG4 Texas Instruments Scan Test Devices With 18-Bit Bus Transceivers 56-SSOP -40 to 85
SN74ABT18245ADGGR Texas Instruments Scan Test Devices With 18-Bit Bus Transceivers 56-TSSOP -40 to 85
SN74ABT18245A 's PackagesSN74ABT18245A 's pdf datasheet
74ABT18245ADGGRE4 TSSOP
74ABT18245ADGGRG4 TSSOP
SN74ABT18245ADGGR TSSOP
SN74ABT18245ADL SSOP
SN74ABT18245ADLG4 SSOP
SN74ABT18245ADLR SSOP
SN74ABT18245ADLRG4 SSOP

SN74ABT18245A pdf datasheet download


SN74ABT18245A Pinout, Pinouts
SN74ABT18245A pinout,Pin out
This is one package pinout of SN74ABT18245A,If you need more pinouts please download SN74ABT18245A's pdf datasheet.

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