- 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 输入和三态输出的航天类 8 通道、2.7V 至 3.6V 缓冲器
- 点击这里打开及下载SN54LVTH244A-SP的技术文档资料
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These octal buffers and line drivers 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.
The ’LVTH244A devices are organized as two 4-bit line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the devices pass data from the A inputs to the Y outputs. When OE\ is high, 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 is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff 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.
- Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Support Unregulated Battery Operation Down to 2.7 V
- 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 500 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- Technology Family
- LVT
- Supply voltage (Min) (V)
- 2.7
- Supply voltage (Max) (V)
- 3.6
- Number of channels (#)
- 8
- IOL (Max) (mA)
- 48
- ICC (Max) (uA)
- 5000
- IOH (Max) (mA)
- -24
- 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
- Space
SN54LVTH244A-SP的完整型号有：5962-9584401V2A、5962-9584401VRA、5962-9584401VSA，以下是这些产品的关键参数及官网采购报价：
5962-9584401V2A，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401V2A的批量USD价格：172.788（1000+）
5962-9584401VRA，工作温度：-55 to 125，封装：CDIP (J)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VRA的批量USD价格：172.788（1000+）
5962-9584401VSA，工作温度：-55 to 125，封装：CFP (W)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VSA的批量USD价格：207.346（1000+）
5962-9584401V2A，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401V2A的批量USD价格：172.788（1000+）
5962-9584401VRA，工作温度：-55 to 125，封装：CDIP (J)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VRA的批量USD价格：172.788（1000+）
5962-9584401VSA，工作温度：-55 to 125，封装：CFP (W)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VSA的批量USD价格：207.346（1000+）
