Overview
The MC74VHC1GT32DFT2G is an advanced high-speed CMOS 2-input OR gate fabricated with silicon gate CMOS technology. It is designed to achieve high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the low power dissipation characteristic of CMOS devices. The internal circuit includes a buffer output stage that provides high noise immunity and stable output. This device is compatible with TTL-type input thresholds and features a full 5 V CMOS level output swing, making it suitable for various logic-level translation applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | −0.5 to +7.0 | V |
| DC Input Voltage (VIN) | −0.5 to +7.0 | V |
| DC Output Voltage (VOUT) | −0.5 to VCC + 0.5 | V |
| Propagation Delay (tPD) at VCC = 5 V | 3.7 ns (Typ) | ns |
| Low Power Dissipation (ICC) at TA = 25°C | 2 mA (Max) | mA |
| TTL-Compatible Input Thresholds | VIL = 0.8 V, VIH = 2.0 V | V |
| CMOS-Compatible Output Levels | VOH > 0.8 VCC, VOL < 0.1 VCC | V |
| Operating Temperature Range (TA) | −55 to +125 | °C |
| Thermal Resistance (JA) | 333 °C/W | °C/W |
Key Features
- High-speed operation with a propagation delay of 3.7 ns (typ) at VCC = 5 V.
- Low power dissipation with ICC = 2 mA (max) at TA = 25°C.
- TTL-compatible inputs and CMOS-compatible outputs.
- Input protection circuitry allowing overvoltage tolerance up to 7 V.
- Power down protection on inputs and outputs.
- Balanced propagation delays and symmetrical output impedance.
- Pb-free packages available.
- Designed for 2.0 V to 5.5 V VCC operation.
Applications
The MC74VHC1GT32DFT2G is suitable for a wide range of applications, including:
- Logic-level translation from 3 V CMOS logic to 5 V CMOS logic or from 1.8 V CMOS logic to 3 V CMOS logic.
- Interface between 5 V and 3 V circuits.
- General-purpose logic circuits requiring high speed and low power consumption.
- Applications requiring high noise immunity and stable output.
Q & A
- What is the typical propagation delay of the MC74VHC1GT32DFT2G at VCC = 5 V?
The typical propagation delay is 3.7 ns. - What is the maximum low power dissipation of the MC74VHC1GT32DFT2G at TA = 25°C?
The maximum low power dissipation is 2 mA. - What are the TTL-compatible input thresholds for the MC74VHC1GT32DFT2G?
The TTL-compatible input thresholds are VIL = 0.8 V and VIH = 2.0 V. - What is the operating temperature range of the MC74VHC1GT32DFT2G?
The operating temperature range is −55 to +125°C. - Does the MC74VHC1GT32DFT2G have power down protection?
Yes, it has power down protection on inputs and outputs. - What is the thermal resistance (JA) of the MC74VHC1GT32DFT2G?
The thermal resistance is 333 °C/W. - Is the MC74VHC1GT32DFT2G Pb-free?
Yes, Pb-free packages are available. - What is the voltage range for VCC operation of the MC74VHC1GT32DFT2G?
The VCC operation range is from 2.0 V to 5.5 V. - Can the MC74VHC1GT32DFT2G be used for logic-level translation?
Yes, it can be used for logic-level translation between different voltage levels. - What type of output does the MC74VHC1GT32DFT2G have?
The output is CMOS-compatible with a full 5 V level output swing.
