SN74LVTH126_TI 具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 4 通道、2.7V 至 3.6V 缓冲器

SN74LVTH126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：缓冲器、驱动器和收发器 - 同相缓冲器和驱动器
功能描述：具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 4 通道、2.7V 至 3.6V 缓冲器
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SN74LVTH126的产品详情：

These bus buffers are designed specifically for low-voltage (3.3-V) V_CC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The ’LVTH126 devices feature independent line drivers with 3-state outputs. Each output is in the high-impedance state when the associated output-enable (OE) input is low.

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.

When V_CC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

These devices are fully specified for hot-insertion applications using I_off and power-up 3-state. The I_off circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

SN74LVTH126的优势和特性：

Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
Support Unregulated Battery Operation Down to 2.7 V
Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
Ioff and Power-Up 3-State Support Hot Insertion
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

SN74LVTH126的参数（英文）：

Technology Family
LVT
Supply voltage (Min) (V)
2.7
Supply voltage (Max) (V)
3.6
Number of channels (#)
4
IOL (Max) (mA)
64
ICC (Max) (uA)
7000
IOH (Max) (mA)
-32
Input type
TTL-Compatible CMOS
Output type
3-State
Features
Ultra high speed (tpd <5ns), Partial power down (Ioff), Over-voltage tolerant inputs, Power up 3-state, Bus-hold
Rating
Catalog

SN74LVTH126具体的完整产品型号参数及价格（美元）：

SN74LVTH126的完整型号有：SN74LVTH126D、SN74LVTH126DBR、SN74LVTH126DGVR、SN74LVTH126DR、SN74LVTH126NSR、SN74LVTH126PW、SN74LVTH126PWR，以下是这些产品的关键参数及官网采购报价：

SN74LVTH126D，工作温度：-40 to 85，封装：SOIC (D)-14，包装数量MPQ：50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SN74LVTH126D的批量USD价格：0.36（1000+）

SN74LVTH126DBR，工作温度：-40 to 85，封装：SSOP (DB)-14，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SN74LVTH126DBR的批量USD价格：0.176（1000+）

SN74LVTH126DGVR，工作温度：-40 to 85，封装：TVSOP (DGV)-14，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SN74LVTH126DGVR的批量USD价格：0.16（1000+）

SN74LVTH126DR，工作温度：-40 to 85，封装：SOIC (D)-14，包装数量MPQ：2500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SN74LVTH126DR的批量USD价格：0.16（1000+）

SN74LVTH126NSR，工作温度：-40 to 85，封装：SO (NS)-14，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SN74LVTH126NSR的批量USD价格：0.176（1000+）

SN74LVTH126PW，工作温度：-40 to 85，封装：TSSOP (PW)-14，包装数量MPQ：90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SN74LVTH126PW的批量USD价格：0.36（1000+）

SN74LVTH126PWR，工作温度：-40 to 85，封装：TSSOP (PW)-14，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SN74LVTH126PWR的批量USD价格：0.16（1000+）

SN74LVTH126的评估套件：

14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。

SN74LVTH126的电路图解：

SN74LVTH126的评估套件：