Overview
The onsemi 74FST3257DTR2G is a quad 2:1 high-performance multiplexer/demultiplexer bus switch. This device is CMOS TTL compatible and operates within a voltage range of 4 to 5.5 volts. It is designed to exhibit extremely low RON (on-resistance) and adds nearly zero propagation delay, making it ideal for applications requiring minimal signal distortion and high-speed data transfer. The device is also characterized by its low standby current, absence of circuit bounce, and compatibility with TTL/CMOS control inputs.
Key Specifications
| Parameter | Min | Typical | Max | Units |
|---|---|---|---|---|
| VCC (DC Supply Voltage) | -0.5 | - | 7.0 | V |
| VI (DC Input Voltage) | -0.5 | - | 7.0 | V |
| VO (DC Output Voltage) | -0.5 | - | 7.0 | V |
| RON (Switch On Resistance) | - | 4 | 7 | Ω (at VIN = 0 V, IIN = 64 mA) |
| tPHL, tPLH (Propagation Delay Bus to Bus) | - | 0.25 | 0.25 | ns |
| TA (Operating Free-Air Temperature) | -40 | - | 85 | °C |
| ICC (Quiescent Supply Current) | - | 3 | - | μA (at VIN = VCC or GND, IOUT = 0) |
Key Features
- Extremely low RON (typically 4 Ω) and nearly zero propagation delay.
- No circuit bounce or ground bounce.
- Control inputs are TTL/CMOS compatible.
- Pin-for-pin compatible with QS3257, FST3257, and CBT3257.
- Available in popular packages: SOIC-16, TSSOP-16, and QFN16.
- NLV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
The 74FST3257DTR2G is suitable for a variety of applications where high-speed data transfer and minimal signal distortion are critical. These include:
- High-speed data buses and backplanes.
- Telecommunications and networking equipment.
- Automotive systems requiring AEC-Q100 qualification.
- Industrial control systems and automation.
- Consumer electronics requiring low power consumption and high reliability.
Q & A
- What is the operating voltage range of the 74FST3257DTR2G?
The device operates between 4 and 5.5 volts.
- What is the typical on-resistance (RON) of the 74FST3257DTR2G?
The typical RON is 4 Ω.
- Does the 74FST3257DTR2G introduce any propagation delay?
The device adds nearly zero propagation delay.
- Is the 74FST3257DTR2G compatible with TTL/CMOS control inputs?
- In what packages is the 74FST3257DTR2G available?
The device is available in SOIC-16, TSSOP-16, and QFN16 packages.
- Is the 74FST3257DTR2G suitable for automotive applications?
- Is the 74FST3257DTR2G Pb-free and RoHS compliant?
- What is the maximum operating temperature of the 74FST3257DTR2G?
- What is the quiescent supply current of the 74FST3257DTR2G?
- Does the 74FST3257DTR2G introduce any noise or ground bounce?
