Overview
The 74LVC125ADR2G, produced by ON Semiconductor, is a high-performance, low-voltage CMOS quad buffer. This device operates within a supply voltage range of 1.2 to 3.6 volts and is designed for use in a variety of digital logic applications. It features four independent buffers with 3-state outputs, each controlled by an associated output enable (OE) pin. The 74LVC125ADR2G is particularly useful in mixed-voltage environments due to its 5.0 V tolerant inputs and outputs, making it compatible with both low-voltage and standard TTL logic systems.
Key Specifications
| Parameter | Value | Unit | Condition |
|---|---|---|---|
| VCC (Supply Voltage) | 1.2 to 3.6 | V | |
| VCC Maximum Rating | 5.5 | V | |
| VI (Input Voltage) | -0.5 to +6.5 | V | |
| VO (Output Voltage) | -0.5 to VCC + 0.5 | V | Active Mode |
| Output Current | ±24 mA | mA | VCC = 3.0 V |
| tpd (Propagation Delay) | 4.6 ns (at VCC = 3.3 V) | ns | |
| Operating Temperature | -40°C to +125°C | °C |
Key Features
- Wide supply voltage range: 1.2 to 3.6 V, with 5.0 V tolerant inputs and outputs.
- Four independent buffers with 3-state outputs, each controlled by an associated output enable (OE) pin.
- High impedance TTL compatible inputs to reduce current loading on input drivers.
- TTL compatible outputs for improved switching noise performance.
- IOFF circuitry supports partial power-down mode operation, preventing damaging current backflow when the device is powered down.
- Schmitt trigger action at all inputs for tolerance to slower input rise and fall times.
- ESD protection exceeds JESD 22 standards (2000-V Human Body Model).
Applications
- Memory address driving and TTL level bus-oriented transceiver applications.
- Mixed-voltage environments where compatibility with both low-voltage and standard TTL logic is required.
- Partial power-down applications where IOFF circuitry is beneficial.
- General digital logic circuits requiring high-performance, low-voltage buffers.
Q & A
- What is the supply voltage range of the 74LVC125ADR2G?
The supply voltage range is from 1.2 to 3.6 volts.
- What is the maximum output current of the 74LVC125ADR2G?
The maximum output current is ±24 mA at VCC = 3.0 V.
- How are the outputs controlled in the 74LVC125ADR2G?
Each output is independently controlled by an associated output enable (OE) pin, which places the output in a high impedance state when driven high.
- What is the propagation delay of the 74LVC125ADR2G at VCC = 3.3 V?
The propagation delay is approximately 4.6 ns at VCC = 3.3 V.
- Does the 74LVC125ADR2G support partial power-down mode operation?
Yes, it supports partial power-down mode operation using IOFF circuitry.
- What is the operating temperature range of the 74LVC125ADR2G?
The operating temperature range is from -40°C to +125°C.
- What type of ESD protection does the 74LVC125ADR2G have?
The device has ESD protection that exceeds JESD 22 standards (2000-V Human Body Model).
- Can the 74LVC125ADR2G be used in mixed-voltage environments?
Yes, it can be used in mixed-voltage environments due to its 5.0 V tolerant inputs and outputs).
- What is the purpose of the Schmitt trigger action in the 74LVC125ADR2G?
The Schmitt trigger action makes the circuit tolerant to slower input rise and fall times).
- What are the typical applications of the 74LVC125ADR2G?
Typical applications include memory address driving, TTL level bus-oriented transceiver applications, and general digital logic circuits).
