逻辑类型
Logic Type | 多路复用器/多路分解器 Multiplexer/Demultiplexer |
电路数
Number of Circuits | |
输入数
Number of Inputs | |
电源电压Vcc
Voltage - Supply | |
静态电流Iq
Current - Quiescent (Max) | 单电源 Single Supply |
输出高，低电平电流
Current - Output High, Low | 4.5 V ~ 5.5 V |
低逻辑电平
Logic Level - Low | The TC7MB3257FK is high-speed CMOS quad 1-2 multiplexer/demultiplexer. The low on resistance of the switch allows connections to be made with minimal propagation delay time. This device consists of four individual two-inputs multiplexer/demultiplexer with common select input (S) and output enable ( OE ). The A inputs is connected to the B1 or B2 outputs determined by the combination both the select input (S) and output enable ( OE ). When the output enable ( OE ) input is held “H” level, the switches are open with regardless the state of select inputs and a high-impedance state exists between the switches. All inputs are equipped with protection circuits against static discharge. Operating voltage: VCC = 4.5~5.5 V High speed: tpd = 0.25 ns (max) Low on resistance: RON = 5 Ω (typ.) ESD performance: Machine model > ±200 V Human body model > ±2000 V Compatible with TTL outputs (control inputs) Package: VSSOP (US16) Pin compatible with the 74xx257 type. Functionally equivalent to (FST/CBT) 3257. |
高逻辑电平
Logic Level - High | TC7MB3257FK是高速CMOS四1-2复用器/多路分解器。低电阻的开关允许以最小的传播延迟时间连接。该装置由四个独立的2输入多路复用器/多路分解器组成，有着两个共同的选择输入端（S）和输出使能（OE）。A输入连接到B1或B2的输出由选择输入端（S）和输出使能（OE）的组合同时决定。当输出使能（OE）输入为“H”级，开关打开，，不管选择输入端的状态和开关之间的高阻抗状态。所有输入都配有保护电路防止静电放电。 工作电压：VCC= 4.5〜5.5 V 高速：TPD =0.25 ns（最大） 低导通电阻RON= 5Ω（典型值） ESD性能：机器型号>±200 V 人体模式>±2000 V 兼容TTL输出（控制输入） 包装：VSSOP（US16） 与74xx257型引脚兼容。 其功能相当于（FST/ CBT）3257。 |
传播延迟时间@Vcc，CL
Max Propagation Delay @ V, Max CL | |
| Description & Applications | |
| 描述与应用 | |