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正反器、鎖存器和暫存器
D 型正反器

SN74AVC16722

現行

具有 3 態輸出的 22 位元正反器

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產品規格表

SN74AVC16722

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 22 Technology family AVC Supply voltage (min) (V) 1.4 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 175 IOL (max) (mA) 12 IOH (max) (mA) -12 Supply current (max) (µA) 40 Features Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 22 Technology family AVC Supply voltage (min) (V) 1.4 Supply voltage (max) (V) 3.6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 175 IOL (max) (mA) 12 IOH (max) (mA) -12 Supply current (max) (µA) 40 Features Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (DGG) 64 137.7 mm² 17 x 8.1
  • Member of the Texas Instruments WidebusTM Family
  • EPICTM (Enhanced-Performance Implanted CMOS) Submicron Process
  • DOCTM (Dynamic Output Control) Circuit Dynamically Changes Output Impedance, Resulting in Noise Reduction Without Speed Degradation
  • Dynamic Drive Capability Is Equivalent to Standard Outputs With IOH and IOL of ±24 mA at 2.5-V VCC
  • Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class I
  • Packaged in Thin Shrink Small-Outline Package

    DOC, EPIC, and Widebus are trademarks of Texas Instruments.
  • Member of the Texas Instruments WidebusTM Family
  • EPICTM (Enhanced-Performance Implanted CMOS) Submicron Process
  • DOCTM (Dynamic Output Control) Circuit Dynamically Changes Output Impedance, Resulting in Noise Reduction Without Speed Degradation
  • Dynamic Drive Capability Is Equivalent to Standard Outputs With IOH and IOL of ±24 mA at 2.5-V VCC
  • Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class I
  • Packaged in Thin Shrink Small-Outline Package

    DOC, EPIC, and Widebus are trademarks of Texas Instruments.

A Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows typical VOL vs IOL and VOH vs IOH curves to illustrate the output impedance and drive capability of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. For more information, refer to the TI application reports, AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control (DOCTM ) Circuitry Technology and Applications, literature number SCEA009.

This 22-bit flip-flop is operational at 1.2-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.

The 22 flip-flops of the SN74AVC16722 are edge-triggered D-type flip-flops with clock-enable (CLKEN\) input. On the positive transition of the clock (CLK) input, the device stores data into the flip-flops if CLKEN\ is low. If CLKEN\ is high, no data is stored.

A buffered output-enable (OE\) input places the 22 outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. OE\ does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ 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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC16722 is characterized for operation from -40°C to 85°C.

A Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows typical VOL vs IOL and VOH vs IOH curves to illustrate the output impedance and drive capability of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. For more information, refer to the TI application reports, AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control (DOCTM ) Circuitry Technology and Applications, literature number SCEA009.

This 22-bit flip-flop is operational at 1.2-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.

The 22 flip-flops of the SN74AVC16722 are edge-triggered D-type flip-flops with clock-enable (CLKEN\) input. On the positive transition of the clock (CLK) input, the device stores data into the flip-flops if CLKEN\ is low. If CLKEN\ is high, no data is stored.

A buffered output-enable (OE\) input places the 22 outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. OE\ does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ 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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC16722 is characterized for operation from -40°C to 85°C.
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類型 標題 日期
* Data sheet 22-Bit Flip-Flop With 3-State Outputs datasheet (Rev. H) 2000年 6月 29日
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15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
Application note Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) 2015年 4月 30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 Selecting the Right Level Translation Solution (Rev. A) 2004年 6月 22日
More literature LCD Module Interface Application Clip 2003年 5月 9日
User guide AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) 2002年 8月 20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 Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) 1999年 7月 7日
Application note AVC Logic Family Technology and Applications (Rev. A) 1998年 8月 26日

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