Overview
The MC74HC541ADTR2G is an octal 3-state noninverting buffer/line driver/line receiver produced by onsemi. This device is part of the HC541A series, which is designed to be used in high-performance silicon-gate CMOS technology. It is identical in pinout to the LS541 and is compatible with standard CMOS outputs, as well as LSTTL outputs with external pull-up resistors. The MC74HC541A is suitable for various bus-oriented systems, including 3-state memory address drivers, clock drivers, and other applications requiring noninverting buffer functionality.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| DC Input Voltage (VIN) | 0 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | 0 to VCC + 0.5 | V |
| Operating Free-Air Temperature (TA) | -55 to +125 | °C |
| Input Rise or Fall Time (tr, tf) | 1000 ns (VCC = 2.0 V), 500 ns (VCC = 4.5 V), 400 ns (VCC = 6.0 V) | ns |
| Maximum Propagation Delay (tPLH, tPHL) | 23 to 32 ns (depending on VCC) | ns |
| Maximum Output Transition Time (tTLH, tTHL) | 12 to 18 ns (depending on VCC) | ns |
| Maximum Input Capacitance (Cin) | 10 pF | pF |
| Maximum 3-State Output Capacitance (Cout) | 15 pF | pF |
| Power Dissipation Capacitance (CPD) | 35 pF (per buffer) | pF |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs directly interface to CMOS, NMOS, and TTL
- Low Input Current: 1 μA
- High Noise Immunity characteristic of CMOS devices
- In compliance with the JEDEC Standard No. 7A requirements
- Chip Complexity: 134 FETs or 33.5 equivalent gates
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
- Pb-free and RoHS compliant
Applications
The MC74HC541ADTR2G is designed for use in various bus-oriented systems, including:
- 3-state memory address drivers
- Clock drivers
- Other bus-oriented systems requiring noninverting buffer functionality
- Level conversion for interfacing TTL or NMOS outputs to high-speed CMOS inputs
Q & A
- What is the operating voltage range of the MC74HC541ADTR2G?
The operating voltage range is from 2.0 to 6.0 V for the HC version and 4.5 to 5.5 V for the HCT version.
- What is the maximum propagation delay of the MC74HC541ADTR2G?
The maximum propagation delay (tPLH, tPHL) ranges from 23 to 32 ns depending on the VCC voltage.
- How many LSTTL loads can the MC74HC541ADTR2G drive?
The device can drive up to 15 LSTTL loads.
- Is the MC74HC541ADTR2G compatible with TTL outputs?
Yes, it is compatible with TTL outputs, especially with the HCT version which can act as a level converter.
- What is the maximum input capacitance of the MC74HC541ADTR2G?
The maximum input capacitance (Cin) is 10 pF.
- Is the MC74HC541ADTR2G RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
- What is the storage temperature range for the MC74HC541ADTR2G?
The storage temperature range is from -65 to +150 °C.
- How many inputs and outputs does the MC74HC541ADTR2G have?
The device has 8 inputs and 8 outputs.
- What is the purpose of the output enable pins (OE1, OE2) on the MC74HC541ADTR2G?
The output enable pins control the state of the outputs. When both pins are low, the outputs are enabled; when either pin is high, the outputs are in a high-impedance state.
- Is the MC74HC541ADTR2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
