Product details

Technology family ACT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 4 IOL (max) (mA) 48 IOH (max) (mA) -16 Supply current (max) (µA) 100 Input type TTL-Compatible CMOS Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Military Operating temperature range (°C) -55 to 125
Technology family ACT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 4 IOL (max) (mA) 48 IOH (max) (mA) -16 Supply current (max) (µA) 100 Input type TTL-Compatible CMOS Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Military Operating temperature range (°C) -55 to 125
CDIP (JT) 28 269.5956 mm² 36.83 x 7.32 LCCC (FK) 28 130.6449 mm² 11.43 x 11.43
  • Members of the Texas Instruments SCOPETM Family of Testability Products
  • Compatible With the IEEE Standard 1149.1-1990 (JTAG) Serial Test Bus
  • Allow Partitioning of System Scan Paths
  • Can Be Cascaded Horizontally or Vertically
  • Select Up to Four Secondary Scan Paths to Be Included in a Primary Scan Path
  • Include 8-Bit Programmable Binary Counter to Count or Initiate Interrupt Signals
  • Include 4-Bit Identification Bus for Scan-Path Identification
  • Inputs Are TTL Compatible
  • EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

 

SCOPE and EPIC are trademarks of Texas Instruments Incorporated.

  • Members of the Texas Instruments SCOPETM Family of Testability Products
  • Compatible With the IEEE Standard 1149.1-1990 (JTAG) Serial Test Bus
  • Allow Partitioning of System Scan Paths
  • Can Be Cascaded Horizontally or Vertically
  • Select Up to Four Secondary Scan Paths to Be Included in a Primary Scan Path
  • Include 8-Bit Programmable Binary Counter to Count or Initiate Interrupt Signals
  • Include 4-Bit Identification Bus for Scan-Path Identification
  • Inputs Are TTL Compatible
  • EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

 

SCOPE and EPIC are trademarks of Texas Instruments Incorporated.

The 'ACT8997 are members of the Texas Instruments SCOPETM testability integrated-circuit family. This family of components facilitates testing of complex circuit-board assemblies.

The 'ACT8997 enhance the scan capability of TI's SCOPETM family by allowing augmentation of a system's primary scan path with secondary scan paths (SSPs), which can be individually selected by the 'ACT8997 for inclusion in the primary scan path. These devices also provide buffering of test signals to reduce the need for external logic.

By loading the proper values into the instruction register and data registers, the user can select up to four SSPs to be included in a primary scan path. Any combination of the SSPs can be selected at a time. Any of the device's six data registers or the instruction register can be placed in the device's scan path, i.e., placed between test data input (TDI) and test data output (TDO) for subsequent shift and scan operations.

All operations of the device except counting are synchronous to the test clock pin (TCK). The 8-bit programmable up/down counter can be used to count transitions on the device condition input (DCI) pin and output interrupt signals via the device condition output (DCO) pin. The device can be configured to count on either the rising or falling edge of DCI.

The test access port (TAP) controller is a finite-state machine compatible with IEEE Standard 1149.1.

The SN54ACT8997 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ACT8997 is characterized for operation from 0°C to 70°C.

The 'ACT8997 are members of the Texas Instruments SCOPETM testability integrated-circuit family. This family of components facilitates testing of complex circuit-board assemblies.

The 'ACT8997 enhance the scan capability of TI's SCOPETM family by allowing augmentation of a system's primary scan path with secondary scan paths (SSPs), which can be individually selected by the 'ACT8997 for inclusion in the primary scan path. These devices also provide buffering of test signals to reduce the need for external logic.

By loading the proper values into the instruction register and data registers, the user can select up to four SSPs to be included in a primary scan path. Any combination of the SSPs can be selected at a time. Any of the device's six data registers or the instruction register can be placed in the device's scan path, i.e., placed between test data input (TDI) and test data output (TDO) for subsequent shift and scan operations.

All operations of the device except counting are synchronous to the test clock pin (TCK). The 8-bit programmable up/down counter can be used to count transitions on the device condition input (DCI) pin and output interrupt signals via the device condition output (DCO) pin. The device can be configured to count on either the rising or falling edge of DCI.

The test access port (TAP) controller is a finite-state machine compatible with IEEE Standard 1149.1.

The SN54ACT8997 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ACT8997 is characterized for operation from 0°C to 70°C.

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Technical documentation

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Type Title Date
* Data sheet Scan Path Linkers With 4-Bit Identification Buses Scan-Controlled IEEE Std datasheet (Rev. D) 01 Dec 1996
* SMD SN54ACT8997 SMD 5962-93239 21 Jun 2016
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 01 Apr 1996

Design & development

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Package Pins CAD symbols, footprints & 3D models
CDIP (JT) 28 Ultra Librarian
LCCC (FK) 28 Ultra Librarian

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