Overview
The MC74LCX541 is a high-performance, non-inverting octal buffer designed to operate from a 2.3 to 3.6 V supply. This device is similar in function to the MC74LCX244 but provides a flow-through architecture. It features high impedance TTL compatible inputs, which significantly reduce current loading to input drivers, and TTL compatible outputs that offer improved switching noise performance. The MC74LCX541 is capable of safely interfacing with 5 V devices due to its 5 V tolerant inputs and outputs. It is particularly suitable for memory address driving and all TTL level bus-oriented transceiver applications. The device also supports live insertion and withdrawal and has a current drive capability of 24 mA at the outputs.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.3 | - | 3.6 | V |
| VI (Input Voltage) | 0 | - | 5.5 | V |
| VO (Output Voltage) | 0 | - | VCC | V |
| IOH (HIGH Level Output Current) | -24 | - | - | mA (VCC = 3.0 V - 3.6 V) |
| IOL (LOW Level Output Current) | 24 | - | - | mA (VCC = 3.0 V - 3.6 V) |
| TA (Operating Free-Air Temperature) | -40 | - | 85 | °C |
| tPLH/tPHL (Propagation Delay) | 1 | - | 7.5 | ns (VCC = 3.0 V - 3.6 V) |
Key Features
- Designed for 2.3 to 3.6 V VCC operation
- 5 V tolerant - interface capability with 5 V TTL logic
- Supports live insertion and withdrawal
- IOFF specification guarantees high impedance when VCC = 0 V
- LVTTL and LVCMOS compatible
- 24 mA balanced output sink and source capability
- Near zero static supply current in all three logic states (10 μA)
- Latchup performance exceeds 500 mA
- ESD performance: Human Body Model > 2000 V, Machine Model > 200 V
- Pb-free, halogen-free/BFR-free, and RoHS compliant packages
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
Applications
The MC74LCX541 is suitable for various applications, including:
- Memory address driving
- TTL level bus-oriented transceiver applications
- Systems requiring live insertion and withdrawal capabilities
- Automotive and industrial applications due to its AEC-Q100 qualification and PPAP capability
Q & A
- What is the operating voltage range of the MC74LCX541?
The MC74LCX541 operates from a 2.3 to 3.6 V supply.
- What is the current drive capability of the MC74LCX541?
The MC74LCX541 has a current drive capability of 24 mA at the outputs.
- Is the MC74LCX541 compatible with 5 V TTL logic?
Yes, the MC74LCX541 is 5 V tolerant and can safely interface with 5 V devices.
- What are the key features of the MC74LCX541's inputs and outputs?
The device features high impedance TTL compatible inputs and TTL compatible outputs, which reduce current loading and improve switching noise performance.
- What is the propagation delay of the MC74LCX541?
The propagation delay (tPLH/tPHL) ranges from 1 to 7.5 ns depending on the VCC voltage.
- Is the MC74LCX541 suitable for automotive applications?
Yes, the MC74LCX541 is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the ESD performance of the MC74LCX541?
The MC74LCX541 has an ESD performance of Human Body Model > 2000 V and Machine Model > 200 V.
- Does the MC74LCX541 support live insertion and withdrawal?
Yes, the MC74LCX541 supports live insertion and withdrawal.
- What are the package options available for the MC74LCX541?
The MC74LCX541 is available in SOIC-20 and TSSOP-20 packages.
- Is the MC74LCX541 RoHS compliant?
Yes, the MC74LCX541 is Pb-free, halogen-free/BFR-free, and RoHS compliant.[
