Overview
The MC74VHCT126ADR2G, produced by onsemi, is a high-speed CMOS quad bus buffer with 3-state control inputs. Fabricated with silicon gate CMOS technology, this device achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining low power dissipation characteristic of CMOS devices. The MC74VHCT126ADR2G is designed to operate over a wide voltage range from 2.0 V to 5.5 V, making it versatile for various applications. It features inputs compatible with TTL levels and outputs that can swing to full 5.0 V CMOS levels, enabling it to act as a level converter between 3.3 V and 5.0 V systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (DC Supply Voltage) | 2.0 | - | 5.5 | V |
| VIN (DC Input Voltage) | 0 | - | 5.5 | V |
| VIH (High-Level Input Voltage) at VCC = 5.5 V | 3.15 | - | 3.85 | V |
| VIL (Low-Level Input Voltage) at VCC = 5.5 V | 1.35 | - | 1.65 | V |
| VOH (High-Level Output Voltage) at IOH = -50 μA | 4.4 | - | - | V |
| VOL (Low-Level Output Voltage) at IOL = 50 μA | 0.1 | - | 0.1 | V |
| tPLH, tPHL (Propagation Delay, A to Y) at VCC = 5.0 V, CL = 50 pF | 3.8 | - | - | ns |
| ICC (Quiescent Supply Current) at VCC = 5.5 V | - | - | 4.0 | μA |
| TA (Operating Temperature) | -55 | - | 125 | °C |
Key Features
- High Speed: Propagation delay of 3.8 ns (Typ) at VCC = 5.0 V
- Low Power Dissipation: ICC = 4.0 μA (Max) at TA = 25°C
- High Noise Immunity: VNIH = VNIL = 28% VCC
- Power Down Protection Provided on Inputs
- Balanced Propagation Delays
- Designed for 2.0 V to 5.5 V Operating Range
- Low Noise: VOLP = 0.8 V (Max)
- Pin and Function Compatible with Other Standard Logic Families
- Latchup Performance Exceeds 100 mA
- ESD Performance: Human Body Model > 2000 V
- Chip Complexity: 72 FETs or 18 Equivalent Gates
- Pb-Free and RoHS Compliant
Applications
The MC74VHCT126ADR2G is suitable for a variety of applications, including:
- Level conversion between 3.3 V and 5.0 V systems
- High-speed data transmission and buffering in digital systems
- Interface circuits requiring low power and high noise immunity
- Automotive and industrial control systems due to its AEC-Q100 qualification
- General-purpose logic circuits where high speed and low power are critical
Q & A
- What is the operating voltage range of the MC74VHCT126ADR2G?
The device operates over a voltage range from 2.0 V to 5.5 V.
- What is the propagation delay of the MC74VHCT126ADR2G at VCC = 5.0 V?
The propagation delay is 3.8 ns (Typ) at VCC = 5.0 V.
- What are the input voltage levels compatible with the MC74VHCT126ADR2G?
The inputs are compatible with TTL levels.
- Does the MC74VHCT126ADR2G provide power down protection?
- What is the maximum operating temperature of the MC74VHCT126ADR2G?
The maximum operating temperature is 125°C.
- Is the MC74VHCT126ADR2G Pb-Free and RoHS compliant?
- What is the quiescent supply current of the MC74VHCT126ADR2G at VCC = 5.5 V?
The quiescent supply current is 4.0 μA (Max) at VCC = 5.5 V.
- Can the MC74VHCT126ADR2G be used as a level converter?
- What is the ESD performance of the MC74VHCT126ADR2G?
The ESD performance exceeds 2000 V according to the Human Body Model.
- Is the MC74VHCT126ADR2G suitable for automotive applications?
