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SN74CBT3251DBQR from TI,Texas Instruments

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SN74CBT3251DBQR

Manufacturer: TI

1-Of-8 FET Multiplexer/Demultiplexer

Partnumber Manufacturer Quantity Availability
SN74CBT3251DBQR TI 20000 In Stock

Description and Introduction

1-Of-8 FET Multiplexer/Demultiplexer The SN74CBT3251DBQR is a high-speed TTL-compatible FET bus switch manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Type:** 1-Channel Analog Switch/Multiplexer/Demultiplexer  
- **Configuration:** Single 8:1 Multiplexer/Demultiplexer  
- **Voltage Supply Range (VCC):** 4.5V to 5.5V  
- **On-State Resistance (Ron):** 5Ω (typical)  
- **Bandwidth:** 200MHz (typical)  
- **Low Power Consumption:** ICC = 0.1μA (max)  
- **Propagation Delay:** 0.25ns (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SSOP-16 (DBQ)  

### **Descriptions:**  
The SN74CBT3251DBQR is a high-bandwidth, low-impedance FET bus switch designed for high-speed signal switching. It provides minimal signal distortion and is compatible with TTL logic levels.  

### **Features:**  
- **Low On-State Resistance (Ron)** for minimal signal attenuation  
- **TTL-Compatible Control Inputs**  
- **Fast Switching Speed** (0.25ns propagation delay)  
- **Bi-Directional Data Flow**  
- **Supports Mixed-Mode Signal Operation** (analog and digital)  
- **Low Power Consumption**  
- **ESD Protection** (2000V HBM per JESD22-A114)  

This device is commonly used in data routing, signal gating, and bus isolation applications.

Application Scenarios & Design Considerations

1-Of-8 FET Multiplexer/Demultiplexer

Alternative Part Number

  • PI3B3251QE --: Pin-compatible 8:1 FET bus switch multiplexer/demultiplexer with similar 5V operation and low on-resistance, direct functional drop-in for the SN74CBT3251 in QSOP/TSSOP packages.
  • CBT3251PW,118 --: Same CBT3251 bus-switch function from a second source, 8:1 mux/demux with 5V tolerant I/O, widely available in TSSOP and usable as a form-fit-function alternative.
  • 74CBTLV3251QG --: Low-voltage CBT-style 8:1 bus switch multiplexer/demultiplexer with compatible pinout and switching behavior, suitable when a lower-voltage CBT family equivalent is acceptable.

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