Overview
The 74LCX125YTTR, produced by STMicroelectronics, is a low-voltage CMOS quad bus buffer with 3-state outputs. This device is designed for high-speed and low-power applications, particularly in environments where interfacing between 3.3 V and 5 V systems is necessary. It features four independent non-inverting buffers, each with a 3-state output that can be set to high, low, or high-impedance state. This makes it ideal for controlling data flow and isolating different sections of digital circuits.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| VCC (Operating Voltage) | Range of supply voltage | 2.0 V to 3.6 V |
| tPD (Propagation Delay) | Maximum propagation delay at VCC = 3 V | 5.2 ns |
| IOH/IOL (Output Drive) | Minimum output drive current at VCC = 3 V | ±24 mA |
| ESD Performance | Human Body Model (HBM) | 2000 V |
| ESD Performance | Machine Model (MM) | 200 V |
| ESD Performance | Charged Device Model (CDM) | 1000 V |
| Package | Type of package | TSSOP-14 |
| Operating Temperature | Range of operating temperature | -40°C to +85°C |
Key Features
- 5 V Tolerant Inputs and Outputs: Allows interfacing with 5 V systems while operating at lower voltages.
- High Speed: Maximum propagation delay of 5.2 ns at VCC = 3 V.
- Power-Down Protection: Inputs and outputs are protected during power-down.
- Symmetrical Output Impedance: Ensures balanced propagation delay.
- PCI Bus Levels Guaranteed: Supports PCI bus levels at 24 mA.
- Latch-Up Performance: Exceeds 500 mA (JESD 17).
- ESD Protection: Human Body Model (HBM) > 2000 V, Machine Model (MM) > 200 V, Charged Device Model (CDM) > 1000 V.
Applications
- Automotive: Suitable for automotive applications due to its robust ESD protection and wide operating temperature range.
- Industrial: Used in industrial environments where high reliability and low power consumption are critical.
- Data Bus Systems: Ideal for controlling data flow and isolating different sections of digital circuits in data bus systems.
Q & A
- What is the primary function of the 74LCX125YTTR?
The primary function is to act as a quad bus buffer with 3-state outputs, allowing control over data flow and isolation of circuit sections.
- What is the operating voltage range of the 74LCX125YTTR?
The operating voltage range is from 2.0 V to 3.6 V.
- What is the maximum propagation delay at VCC = 3 V?
The maximum propagation delay is 5.2 ns.
- What is the output drive current capability at VCC = 3 V?
The minimum output drive current is ±24 mA.
- What kind of ESD protection does the 74LCX125YTTR offer?
It offers ESD protection with Human Body Model (HBM) > 2000 V, Machine Model (MM) > 200 V, and Charged Device Model (CDM) > 1000 V.
- In what types of applications is the 74LCX125YTTR commonly used?
It is commonly used in automotive, industrial, and data bus system applications.
- What package types are available for the 74LCX125YTTR?
It is available in TSSOP-14 and other compatible packages.
- What is the operating temperature range of the 74LCX125YTTR?
The operating temperature range is from -40°C to +85°C.
- Does the 74LCX125YTTR support PCI bus levels?
Yes, it guarantees PCI bus levels at 24 mA.
- How does the 74LCX125YTTR handle power-down situations?
It has power-down protection on inputs and outputs to ensure high-impedance state during power-up or power-down.
