SN74LVTH182512-EP

現行

產品詳細資料

Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 3.6 Number of channels 18 IOL (max) (mA) 32 IOH (max) (mA) -32 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Bus-hold, Damping resistors, Partial power down (Ioff), Positive input clamp diode, Very high speed (tpd 5-10ns) Technology family LVT Rating HiRel Enhanced Product Operating temperature range (°C) -40 to 85
Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 3.6 Number of channels 18 IOL (max) (mA) 32 IOH (max) (mA) -32 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Bus-hold, Damping resistors, Partial power down (Ioff), Positive input clamp diode, Very high speed (tpd 5-10ns) Technology family LVT Rating HiRel Enhanced Product Operating temperature range (°C) -40 to 85
TSSOP (DGG) 64 137.7 mm² 17 x 8.1
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • Members of the Texas Instruments SCOPE™ Family of Testability Products
  • Members of the Texas Instruments Widebus™ Family
  • State-of-the-Art 3.3-V ABT Design Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Support Unregulated Battery Operation Down to 2.7 V
  • UBT™ (Universal Bus Transceiver) Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Mode
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • B-Port Outputs of SN74LVTH182512 Device Has Equivalent 25- Series Resistors, So No External Resistors Are Required
  • SCOPE™ Instruction Set
    • IEEE Std 1149.1-1990 Required Instructions and Optional CLAMP and HIGHZ
    • Parallel-Signature Analysis at Inputs
    • Pseudo-Random Pattern Generation From Outputs
    • Sample Inputs/Toggle Outputs
    • Binary Count From Outputs
    • Device Identification
    • Even-Parity Opcodes
  • Compatible With the IEEE Std 1149.1-1990 (JTAG) Test Access Port and Boundary-Scan Architecture

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
SCOPE, Widebus, and UBT are trademarks of Texas Instruments.

  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • Members of the Texas Instruments SCOPE™ Family of Testability Products
  • Members of the Texas Instruments Widebus™ Family
  • State-of-the-Art 3.3-V ABT Design Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Support Unregulated Battery Operation Down to 2.7 V
  • UBT™ (Universal Bus Transceiver) Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Mode
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • B-Port Outputs of SN74LVTH182512 Device Has Equivalent 25- Series Resistors, So No External Resistors Are Required
  • SCOPE™ Instruction Set
    • IEEE Std 1149.1-1990 Required Instructions and Optional CLAMP and HIGHZ
    • Parallel-Signature Analysis at Inputs
    • Pseudo-Random Pattern Generation From Outputs
    • Sample Inputs/Toggle Outputs
    • Binary Count From Outputs
    • Device Identification
    • Even-Parity Opcodes
  • Compatible With the IEEE Std 1149.1-1990 (JTAG) Test Access Port and Boundary-Scan Architecture

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
SCOPE, Widebus, and UBT are trademarks of Texas Instruments.

The SN74LVTH18512 and SN74LVTH182512 scan test devices with 18-bit universal bus transceivers are members of the Texas Instruments SCOPE™ testability integrated-circuit family. This family of devices supports IEEE Std 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.

Additionally, these devices are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

In the normal mode, these devices are 18-bit universal bus transceivers that combine D-type latches and D-type flip-flops to allow data flow in transparent, latched, or clocked modes. 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 SCOPE™ universal bus transceivers.

Data flow in each direction is controlled by output-enable (OEAB\ and OEBA\), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB is low, the A data is latched while CLKAB is held at a static low or high logic level. Otherwise, if LEAB is low, A data is stored on a low-to-high transition of CLKAB. When OEAB\ is low, the B outputs are active. When OEAB\ is high, the B outputs are in the high-impedance state. B-to-A data flow is similar to A-to-B data flow but uses the OEBA\, LEBA, and CLKBA inputs.

In the test mode, the normal operation of the SCOPE™ universal bus transceivers is inhibited, and the test circuitry is enabled to observe and control the I/O boundary of the device. When enabled, the test circuitry performs boundary-scan test operations according to the protocol described in IEEE Std 1149.1-1990.

Four dedicated test pins are used to 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.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The B-port outputs of SN74LVTH182512, which are designed to source or sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot.

The SN74LVTH18512 and SN74LVTH182512 scan test devices with 18-bit universal bus transceivers are members of the Texas Instruments SCOPE™ testability integrated-circuit family. This family of devices supports IEEE Std 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.

Additionally, these devices are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

In the normal mode, these devices are 18-bit universal bus transceivers that combine D-type latches and D-type flip-flops to allow data flow in transparent, latched, or clocked modes. 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 SCOPE™ universal bus transceivers.

Data flow in each direction is controlled by output-enable (OEAB\ and OEBA\), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB is low, the A data is latched while CLKAB is held at a static low or high logic level. Otherwise, if LEAB is low, A data is stored on a low-to-high transition of CLKAB. When OEAB\ is low, the B outputs are active. When OEAB\ is high, the B outputs are in the high-impedance state. B-to-A data flow is similar to A-to-B data flow but uses the OEBA\, LEBA, and CLKBA inputs.

In the test mode, the normal operation of the SCOPE™ universal bus transceivers is inhibited, and the test circuitry is enabled to observe and control the I/O boundary of the device. When enabled, the test circuitry performs boundary-scan test operations according to the protocol described in IEEE Std 1149.1-1990.

Four dedicated test pins are used to 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.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The B-port outputs of SN74LVTH182512, which are designed to source or sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot.

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類型 標題 日期
* Data sheet SN74LVTH18512-EP, SN74LVTH182512-EP datasheet 2003年 11月 10日
* VID SN74LVTH182512-EP VID V6204730 2016年 6月 21日
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021年 7月 26日
Selection guide Logic Guide (Rev. AB) 2017年 6月 12日
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
User guide LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 2002年 5月 22日
Application note Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 2002年 5月 10日
Selection guide Advanced Bus Interface Logic Selection Guide 2001年 1月 9日
Application note LVT-to-LVTH Conversion 1998年 12月 8日
Application note LVT Family Characteristics (Rev. A) 1998年 3月 1日
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997年 8月 1日
Application note Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日
Application note Live Insertion 1996年 10月 1日
Application note Understanding Advanced Bus-Interface Products Design Guide 1996年 5月 1日

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模擬型號

BSDL Model of SN74LVTH182512

SCTM039.ZIP (3 KB) - BSDL Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (DGG) 64 Ultra Librarian

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  • MSL 等級/回焊峰值
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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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