Overview
The MC74LCX125DG is a high-performance, non-inverting quad buffer produced by onsemi. This component operates within a voltage range of 2.3 to 3.6 V and is designed for low-voltage CMOS applications. It features high impedance TTL-compatible inputs and outputs, which significantly reduce current loading on input drivers and improve switching noise performance. The MC74LCX125DG is also 5.0 V tolerant, allowing it to be safely driven from 5.0 V devices, making it suitable for a variety of applications including memory address driving and TTL level bus-oriented transceiver applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | - | 3.6 | V |
| VI (Input Voltage) | 0 | - | 5.5 | V |
| VO (Output Voltage) | 0 | - | VCC + 0.5 | V |
| IOH (HIGH Level Output Current) | -24 | - | -8 | mA (VCC = 3.0 V - 3.6 V) |
| IOL (LOW Level Output Current) | +24 | - | +8 | mA (VCC = 3.0 V - 3.6 V) |
| TA (Operating Free-Air Temperature) | -40 | - | 85 | °C |
| tPLH/tPHL (Propagation Delay Time) | 1 | - | 7.2 | ns |
| tPZH/tPZL (Output Enable Time) | 2 | - | 9.1 | ns |
Key Features
- Designed for 2.3 to 3.6 V VCC operation
- 5.0 V tolerant inputs and outputs for compatibility with 5.0 V TTL logic
- Supports live insertion and withdrawal
- IOFF specification guarantees high impedance when VCC = 0 V
- LVTTL and LVCMOS compatible
- 24 mA balanced output sink and source capability
- Near zero static supply current in all three logic states (10 μA)
- Latchup performance exceeds 500 mA
- ESD performance: Human Body Model >2000 V, Machine Model >200 V
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
The MC74LCX125DG is suitable for various applications, including:
- Memory address driving
- TTL level bus-oriented transceiver applications
- Automotive and industrial systems requiring high reliability and compliance with AEC-Q100 standards
- Systems needing low power consumption and high impedance when powered off
Q & A
- What is the operating voltage range of the MC74LCX125DG?
The MC74LCX125DG operates from a 2.3 to 3.6 V supply voltage. - Is the MC74LCX125DG compatible with 5.0 V TTL logic?
Yes, the MC74LCX125DG is 5.0 V tolerant, allowing it to be safely driven from 5.0 V devices. - What is the output current capability of the MC74LCX125DG?
The MC74LCX125DG has a current drive capability of 24 mA at the outputs. - How does the Output Enable (OEn) input function?
The Output Enable (OEn) inputs, when HIGH, disable the outputs by placing them in a HIGH Z condition. - Is the MC74LCX125DG suitable for automotive applications?
Yes, the MC74LCX125DG is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring high reliability. - What are the environmental operating conditions for the MC74LCX125DG?
The MC74LCX125DG operates over a temperature range of -40°C to +85°C. - What is the propagation delay time of the MC74LCX125DG?
The propagation delay time (tPLH/tPHL) ranges from 1 to 7.2 ns depending on the VCC and load conditions. - Is the MC74LCX125DG RoHS compliant?
Yes, the MC74LCX125DG is Pb-free, halogen-free/BFR-free, and RoHS compliant. - What is the ESD performance of the MC74LCX125DG?
The MC74LCX125DG has an ESD performance of >2000 V for the Human Body Model and >200 V for the Machine Model. - What are the package options for the MC74LCX125DG?
The MC74LCX125DG is available in SOIC-14 and TSSOP-14 packages.
