SN74LVCH244A
- Operate From 1.65 V to 3.6 V
- Inputs Accept Voltages to 5.5 V
- Max tpd of 5.9 ns at 3.3 V
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25°C
- Support Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
- Ioff Supports Partial-Power-Down Mode Operation
- 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)
- 1000-V Charged-Device Model (C101)
The SN54LVCH244A octal buffer/line driver is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVCH244A octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation.
These devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, these devices pass data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
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.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.
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.
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14-24-LOGIC-EVM 评估模块 (EVM) 旨在支持采用 14 引脚至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。
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14-24-EVM 是一款灵活的评估模块 (EVM),旨在支持具有 14 引脚至 24 引脚 BQA、BQB、RGY、RSV、RJW 或 RHL 封装的任何逻辑或转换器件。
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
SOIC (DW) | 20 | Ultra Librarian |
SOP (NS) | 20 | Ultra Librarian |
SSOP (DB) | 20 | Ultra Librarian |
SSOP (DBQ) | 20 | Ultra Librarian |
TSSOP (PW) | 20 | Ultra Librarian |
TVSOP (DGV) | 20 | Ultra Librarian |
VQFN (RGY) | 20 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点