產品詳細資料

Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Number of channels 18 IOL (max) (mA) 24 IOH (max) (mA) -32 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Bus-hold, Positive input clamp diode, Ultra high speed (tpd <5ns) Technology family ALVC Rating Catalog Operating temperature range (°C) -40 to 85
Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Number of channels 18 IOL (max) (mA) 24 IOH (max) (mA) -32 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Bus-hold, Positive input clamp diode, Ultra high speed (tpd <5ns) Technology family ALVC Rating Catalog Operating temperature range (°C) -40 to 85
SSOP (DL) 56 190.647 mm² 18.42 x 10.35 TSSOP (DGG) 56 113.4 mm² 14 x 8.1
  • Member of the Texas Instruments Widebus™ Family
  • UBT™ Transceiver Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Modes
  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.9 ns at 3.3 V
  • ±24-mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus, UBT are trademarks of Texas Instruments.

  • Member of the Texas Instruments Widebus™ Family
  • UBT™ Transceiver Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Modes
  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.9 ns at 3.3 V
  • ±24-mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus, UBT are trademarks of Texas Instruments.

This 18-bit universal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

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 device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is high, the outputs are active. When OEAB is low, the outputs are in the high-impedance state.

Data flow for B to A is similar to that of A to B, but uses OEBA\, LEBA, and CLKBA. The output enables are complementary (OEAB is active high and OEBA\ is active low).

To ensure the high-impedance state during power up or power down, OEBA\ should be tied to VCC through a pullup resistor and OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

This 18-bit universal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

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 device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is high, the outputs are active. When OEAB is low, the outputs are in the high-impedance state.

Data flow for B to A is similar to that of A to B, but uses OEBA\, LEBA, and CLKBA. The output enables are complementary (OEAB is active high and OEBA\ is active low).

To ensure the high-impedance state during power up or power down, OEBA\ should be tied to VCC through a pullup resistor and OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

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類型 標題 日期
* Data sheet SN74ALVCH16501 datasheet (Rev. J) 2004年 8月 27日
Application note An Overview of Bus-Hold Circuit and the Applications (Rev. B) 2018年 9月 17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
User guide ALVC Advanced Low-Voltage CMOS Including SSTL, HSTL, And ALB (Rev. B) 2002年 8月 1日
More literature Standard Linear & Logic for PCs, Servers & Motherboards 2002年 6月 13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 Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A) 1999年 9月 8日
Application note TI SN74ALVC16835 Component Specification Analysis for PC100 1998年 8月 3日
Application note Logic Solutions for PC-100 SDRAM Registered DIMMs (Rev. A) 1998年 5月 13日
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 1997年 12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 CMOS Power Consumption and CPD Calculation (Rev. B) 1997年 6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

HSPICE MODEL OF SN74ALVCH16501

SCEJ200.ZIP (114 KB) - HSpice Model
模擬型號

SN74ALVCH16501 IBIS Model (Rev. B)

SCEM162B.ZIP (47 KB) - IBIS Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SSOP (DL) 56 Ultra Librarian
TSSOP (DGG) 56 Ultra Librarian

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