Overview
The 74LVC1G125FW5-7 is a single, non-inverting buffer/bus driver with a 3-state output, manufactured by Diodes Incorporated. This device is designed to operate within a wide supply voltage range of 1.65V to 5.5V, making it versatile for various applications. The output enters a high-impedance state when a HIGH level is applied to the output enable (OE) pin. This feature, along with its low power consumption and high output drive capability, makes it suitable for use in mixed-voltage environments and partial power-down applications.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 1.65 | 5.5 | V | ||
| Output Drive at 3.3V | -24 | 24 | mA | ||
| Low-Level Output Current (IOL) | VCC = 1.65V | 4 | mA | ||
| VCC = 2.3V | 8 | mA | |||
| VCC = 2.7V | 12 | mA | |||
| VCC = 3V | 16 | mA | |||
| VCC = 4.5V | 32 | mA | |||
| High-Level Output Current (IOH) | VCC = 1.65V | -4 | mA | ||
| VCC = 2.3V | -8 | mA | |||
| VCC = 2.7V | -12 | mA | |||
| VCC = 3V | -16 | mA | |||
| VCC = 4.5V | -32 | mA | |||
| Operating Free-Air Temperature (TA) | -40 | 125 | °C | ||
| Input Transition Rise or Fall Rate (Δt/ΔV) | VCC = 1.8V ± 0.15V | 20 | ns/V | ||
| VCC = 3.3V ± 0.3V | 10 | ns/V | |||
| VCC = 5V ± 0.5V | 5 | ns/V |
Key Features
- Wide Supply Voltage Range from 1.65V to 5.5V
- ±24mA Output Drive at 3.3V
- CMOS Low Power Consumption
- IOFF Supports Partial-Power-Down Mode Operation
- Inputs Accept Up to 5.5V, allowing mixed-voltage environment use
- Grade 1 Ambient Temperature Operation: -40°C to +125°C (for automotive-compliant versions like 74LVC1G125Q)
Applications
The 74LVC1G125 is suitable for a variety of applications, including:
- Mixed-voltage environments where the device can operate with different voltage levels.
- Partial power-down applications where the IOFF circuitry prevents damaging current backflow.
- Automotive systems (for the 74LVC1G125Q version) due to its Grade 1 ambient temperature operation.
- General-purpose buffering and bus driving in digital circuits.
Q & A
- What is the supply voltage range of the 74LVC1G125?
The supply voltage range is from 1.65V to 5.5V.
- What is the output drive capability at 3.3V?
The output drive capability is ±24mA at 3.3V.
- How does the IOFF feature work?
The IOFF circuitry disables the output to prevent damaging current backflow when the device is powered down.
- What is the operating temperature range of the 74LVC1G125?
The operating free-air temperature range is from -40°C to +125°C.
- Can the inputs handle voltages higher than the supply voltage?
Yes, the inputs are tolerant to 5.5V, allowing use in mixed-voltage environments.
- What is the purpose of the output enable (OE) pin?
The output enable (OE) pin puts the output into a high-impedance state when a HIGH level is applied.
- Is the 74LVC1G125 suitable for automotive applications?
Yes, especially the 74LVC1G125Q version, which is automotive-compliant and operates within the Grade 1 ambient temperature range.
- What is the typical power consumption of the 74LVC1G125?
The device has CMOS low power consumption.
- How does the input transition rise or fall rate vary with supply voltage?
The input transition rise or fall rate varies from 20 ns/V at 1.8V to 5 ns/V at 5V.
- What is the thermal resistance of the package?
The thermal resistance varies depending on the package type, such as 184°C/W for SOT25 and 385°C/W for SOT353.
