Overview
The SN74HCT541N is an octal buffer and line driver integrated circuit produced by Texas Instruments. This device is designed to offer high performance similar to the popular ’HC240 series, with a convenient pinout that places inputs and outputs on opposite sides of the package. This arrangement significantly simplifies printed circuit board (PCB) layout. The SN74HCT541N is part of the HCT (High-Speed CMOS) family, which is compatible with TTL (Transistor-Transistor Logic) voltage levels, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | - | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | - | 0.8 | V |
| Input Voltage (VI) | 0 | - | VCC | V |
| Output Voltage (VO) | 0 | - | VCC | V |
| Operating Free-Air Temperature (TA) | -40 | - | 85 | °C |
| Propagation Delay Time (tpd) at 5 V | 12 | 21 | 31 | ns |
| Output Enable Time (ten) at 5 V | 19 | 27 | 41 | ns |
| Output Disable Time (tdis) at 5 V | 18 | 27 | 41 | ns |
Key Features
- Operating voltage range of 4.5 V to 5.5 V.
- High-current 3-state outputs that can interface directly with system bus or drive up to 15 LSTTL loads.
- Low power consumption with a maximum ICC of 80 µA.
- Typical propagation delay time of 12 ns at 5 V.
- ±6-mA output drive at 5 V.
- Low input current of 1 µA max.
- Inputs are TTL-voltage compatible.
- Data flow-through pinout with inputs and outputs on opposite sides of the package.
Applications
The SN74HCT541N is suitable for a variety of digital circuit applications, including:
- Buffering and driving signals in digital systems.
- Interface circuits between different logic families.
- Bus drivers in microprocessor and memory systems.
- General-purpose logic circuits requiring high drive capability and low power consumption.
Q & A
- What is the operating voltage range of the SN74HCT541N?
The operating voltage range is 4.5 V to 5.5 V. - What is the maximum number of LSTTL loads that the SN74HCT541N can drive?
The device can drive up to 15 LSTTL loads. - What is the typical propagation delay time of the SN74HCT541N at 5 V?
The typical propagation delay time is 12 ns at 5 V. - What is the maximum ICC (supply current) of the SN74HCT541N?
The maximum ICC is 80 µA. - Are the inputs of the SN74HCT541N TTL-voltage compatible?
Yes, the inputs are TTL-voltage compatible. - What is the output drive capability of the SN74HCT541N at 5 V?
The output drive capability is ±6 mA at 5 V. - What is the package type of the SN74HCT541N?
The SN74HCT541N is available in a PDIP (Plastic Dual In-Line Package) with 20 pins. - What is the operating temperature range of the SN74HCT541N?
The operating temperature range is -40°C to 85°C. - How many channels does the SN74HCT541N have?
The device has 8 channels. - What is the purpose of the 3-state control gate in the SN74HCT541N?
The 3-state control gate is a 2-input NOR that puts all eight outputs in the high-impedance state if either output-enable input is high.
