Overview
The 74LVC125ADB,118 is a quad buffer/line driver with 3-state outputs, manufactured by Nexperia USA Inc. This device is part of the 74LVC family and is designed to operate in mixed 3.3 V and 5 V environments. It features overvoltage tolerant inputs up to 5.5 V and a wide supply voltage range from 1.2 V to 3.6 V, making it versatile for various applications.
The device includes Schmitt-trigger action at all inputs, which enhances its tolerance to slower input rise and fall times. Additionally, it is fully specified for partial power-down applications using IOFF circuitry, preventing backflow current when the device is powered down.
Key Specifications
| Parameter | Description |
|---|---|
| Type Number | 74LVC125ADB |
| Package | SSOP14 (SOT337-1) |
| Supply Voltage (VCC) | 1.2 V to 3.6 V |
| Logic Switching Levels | CMOS/LVTTL |
| Output Drive Capability | ± 24 mA |
| Maximum Frequency (fmax) | 175 MHz |
| Number of Bits | 4 |
| Operating Temperature Range | -40 °C to +125 °C |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Overvoltage tolerant inputs up to 5.5 V
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low power consumption
- Direct interface with TTL levels
- Schmitt-trigger action at all inputs
- IOFF circuitry for partial power-down mode operation
- Multiple package options (though the SSOP14 package for this specific part is obsolete)
- Complies with JEDEC standards: JESD8-7A, JESD8-5A, JESD8-C/JESD36
Applications
The 74LVC125ADB is suitable for a variety of applications, including:
- Mixed 3.3 V and 5 V environments where voltage translation is necessary
- Buffering and line driving in digital circuits
- Partial power-down applications where IOFF circuitry is beneficial
- Systems requiring low power consumption and high ESD protection
Q & A
- What is the primary function of the 74LVC125ADB?
The primary function is to act as a quad buffer/line driver with 3-state outputs.
- What is the supply voltage range for this device?
The supply voltage range is from 1.2 V to 3.6 V.
- What is the significance of the Schmitt-trigger action in this device?
The Schmitt-trigger action makes the circuit tolerant of slower input rise and fall times.
- What is IOFF circuitry and its purpose?
IOFF circuitry disables the output to prevent backflow current when the device is powered down.
- What are the ESD protection levels for this device?
The device has HBM ESD protection exceeding 2000 V and CDM ESD protection exceeding 1000 V.
- What are the operating temperature ranges for this device?
The operating temperature range is from -40 °C to +125 °C.
- Is the 74LVC125ADB,118 still in production?
No, the 74LVC125ADB,118 is listed as obsolete and no longer manufactured.
- What package options are available for the 74LVC125A series?
Although the SSOP14 package for this specific part is obsolete, other packages like DHVQFN14, SO14, and TSSOP14 are available for other variants in the series.
- What JEDEC standards does this device comply with?
The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
- What is the maximum frequency of operation for this device?
The maximum frequency of operation is 175 MHz.
