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SN74ALVCH16821的基本参数
  • 制造厂商:TI
  • 产品类别:逻辑和电压转换
  • 技术类目:触发器、锁存器和寄存器 - D 型触发器
  • 功能描述:具有三态输出的 3.3V 20 位总线接口触发器
  • 点击这里打开及下载SN74ALVCH16821的技术文档资料
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SN74ALVCH16821的产品详情:

This 20-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH16821 can be used as two 10-bit flip-flops or one 20-bit flip-flop. The 20 flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs.

A buffered output-enable (OE)\ input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

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.

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.

SN74ALVCH16821的优势和特性:
  • Member of the Texas Instruments Widebus? Family
  • 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 is a trademark of Texas Instruments.

SN74ALVCH16821的参数(英文):
  • Number of channels (#)
  • 20
  • Technology Family
  • ALVC
  • Supply voltage (Min) (V)
  • 1.65
  • Supply voltage (Max) (V)
  • 3.6
  • Input type
  • Standard CMOS
  • Output type
  • 3-State
  • Clock Frequency (Max) (MHz)
  • 150
  • IOL (Max) (mA)
  • 24
  • IOH (Max) (mA)
  • -24
  • ICC (Max) (uA)
  • 40
  • Features
  • Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs, Bus-hold
SN74ALVCH16821具体的完整产品型号参数及价格(美元):

SN74ALVCH16821的完整型号有:SN74ALVCH16821DGGR、SN74ALVCH16821DL,以下是这些产品的关键参数及官网采购报价:

SN74ALVCH16821DGGR,工作温度:-40 to 85,封装:TSSOP (DGG)-56,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ALVCH16821DGGR的批量USD价格:1.685(1000+)

SN74ALVCH16821DL,工作温度:-40 to 85,封装:SSOP (DL)-56,包装数量MPQ:20个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ALVCH16821DL的批量USD价格:2.191(1000+)

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SN74ALVCH16821的评估套件:

SN74ALVCH16821DGGR,工作温度:-40 to 85,封装:TSSOP (DGG)-56,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ALVCH16821DGGR的批量USD价格:1.685(1000+)

SN74ALVCH16821DL,工作温度:-40 to 85,封装:SSOP (DL)-56,包装数量MPQ:20个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74ALVCH16821DL的批量USD价格:2.191(1000+)

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