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数据: Quadruple 2-Line to 1-Line Data Selector/Multiplexer 数据表
SN74LVC157A四路2线至1线数据选择器/多路复用器设计用于2.7 V至3.6 VV CC 操作。
该设备具有一个共同的选通( G )输入。当 G 为高时,所有输出都为低。当 G 为低电平时,从两个源中选择一个4位字,并将其路由到四个输出。该器件提供真实数据。
输入可以从3.3 V或5 V器件驱动。此功能允许在混合的3.3 V /5 V系统环境中将此设备用作转换器。
| Function |
| Technology Family |
| VCC (Min) (V) |
| VCC (Max) (V) |
| Channels (#) |
| Voltage (Nom) (V) |
| F @ Nom Voltage (Max) (Mhz) |
| ICC @ Nom Voltage (Max) (mA) |
| tpd @ Nom Voltage (Max) (ns) |
| Configuration |
| Type |
| IOL (Max) (mA) |
| IOH (Max) (mA) |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Bits (#) |
| Digital input leakage (Max) (uA) |
| ESD Charged Device Model (kV) |
| ESD HBM (kV) |
| SN74LVC157A-Q1 | SN54LVC157A | SN74LVC157A | SN74LVC157A-EP |
|---|---|---|---|
| Encoder | Encoder/Multiplexer | Encoder Multiplexer | Encoder/Multiplexer |
| LVC | LVC | LVC | LVC |
| 2 | 2 | 1.65 | 2 |
| 3.6 | 3.6 | 3.6 | 3.6 |
| 4 | 4 | 4 | 4 |
| 2.7 3.3 | 2.7 3.3 | 1.8 2.5 2.7 3.3 | 2.7 3.3 |
| 100 | 100 | 100 | 100 |
| 0.01 | 0.01 | 0.04 | 0.01 |
| 8.2 7 | 6.2 5.4 | 13.5 7.4 5.7 5 | 8.2 7 |
| 2:01 | 2:1 | 2:1 | 2:1 |
| Standard | Standard | Standard | Standard |
| 24 | 24/-24 | 24 | 24/-24 |
| -24 | -24 | ||
| Automotive | Military | Catalog | HiRel Enhanced Product |
| -40 to 125 | -55 to 125 | -40 to 125 -40 to 85 | -40 to 125 |
| SOIC TSSOP | CDIP CFP | SO SOIC SSOP TSSOP VQFN | SOIC TSSOP |
| 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) | See datasheet (CDIP) See datasheet (CFP) | 16SO: 80 mm2: 7.8 x 10.2(SO) 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 48 mm2: 7.8 x 6.2(SSOP) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) 16VQFN: 14 mm2: 3.5 x 4(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16TSSOP: 32 mm2: 6.4 x 5(TSSOP) |
| 2 | 2 | 2 | 2 |
| 5 | 5 | 5 | 5 |
| 0.75 | 0.75 | 0.75 | 0.75 |
| 2 | 2 | 2 | 2 |
| 无样片 |