CY74FCT257T 具有三态输出的四路 2 选 1 数据选择器/多路复用器
The CY74FCT257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high. Data at the output is noninverted.
The CY74FCT257T is a logic implementation of a four-pole, two-position switch, where the position of the switch is determined by the logic levels at S. Outputs are in the high-impedance state when the output-enable (OE\) input is high.
All but one device must be in the high-impedance state to avoid currents exceeding the maximum ratings if outputs are tied together. OE\ inputs must ensure that there is no overlap when outputs of 3-state devices are tied together
| CY74FCT257T | |
| Rating | Catalog |
| Technology Family | FCT |
CY74FCT257T 特性
- Function, Pinout, and Drive Compatible With FCT and F Logic
- Reduced VOH (Typically = 3.3 V) Version of Equivalent FCT Functions
- Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
- Ioff Supports Partial-Power-Down Mode Operation
- Matched Rise and Fall Times
- Fully Compatible With TTL Input and Output Logic Levels
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
- 64-mA Output Sink Current
32-mA Output Source Current - 3-State Outputs
CY74FCT257T 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| CY74FCT257TD | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CY74FCT257TDE4 | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CY74FCT257TDG4 | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| CY74FCT257TDR | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CY74FCT257TDRE4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| CY74FCT257TDRG4 | ACTIVE | -40 to 85 | 0.48 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R |
CY74FCT257T 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| CY74FCT257TD | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TD | CY74FCT257TD |
| CY74FCT257TDE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TDE4 | CY74FCT257TDE4 |
| CY74FCT257TDG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TDG4 | CY74FCT257TDG4 |
| CY74FCT257TDR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TDR | CY74FCT257TDR |
| CY74FCT257TDRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TDRE4 | CY74FCT257TDRE4 |
| CY74FCT257TDRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | CY74FCT257TDRG4 | CY74FCT257TDRG4 |
CY74FCT257T 应用技术支持与电子电路设计开发资源下载
- CY74FCT257T 数据资料 dataSheet 下载.PDF
- TI 德州仪器MSI 功能产品选型与价格 . xls
- Logic Guide 2009 (PDF 4263 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)