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SN54LVC257A技术文档下载：
SN54LVC257A - 产品图解：
SN54LVC257A - 具有三态输出的四路 2 线路到 1 线路数据选择器/多路复用器
SN54LVC257A是TI公司的一款解码器/编码器/多路复用器产品，SN54LVC257A是具有三态输出的四路 2 线路到 1 线路数据选择器/多路复用器，本页介绍了SN54LVC257A的产品说明、应用、特性等，并给出了与SN54LVC257A相关的TI元器件型号供参考。
SN54LVC257A - 具有三态输出的四路 2 线路到 1 线路数据选择器/多路复用器 - 解码器/编码器/多路复用器 - 特殊逻辑 - TI公司（Texas Instruments，德州仪器）
产品特性
- Operate From 1.65 V to 3.6 V
- Inputs Accept Voltages to 5.5 V
- Maximum tpd of 4.6 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
- 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)
- On Products Compliant to MIL-PRF-38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.
产品应用
- Cable Modem Termination Systems
- Tests and Measurements
- I/O Expanders
- Motor Drivers
- Network Switches
- Servers
- Telecom Infrastructure
产品说明
These quadruple 2-line to 1-line data selectors and multiplexers are designed for 1.65-V to 3.6-V VCC operation.
The SNx4LVC257A devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level.
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 or 5-V system environment.
产品器件信息
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| SN74LVC257A | VQFN (16) | 3.50 mm × 4.00 mm |
| SOIC (16) | 9.90 mm × 3.91 mm | |
| SO (16) | 10.30 mm × 5.30 mm | |
| SSOP (16) | 5.50 mm × 6.20 mm | |
| TSSOP (16) | 4.40 mm × 5.00 mm | |
| SN54LVC257A | CDIP (16) | 6.92 mm × 21.34 mm |
| CFP (16) | 10.30 mm × 6.73 mm | |
| LCCC (20) | 8.89 mm × 8.89 mm |
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