Overview
The SN74HCT541NSR is an octal buffer and line driver produced by Texas Instruments. This device is designed to offer high performance and facilitate easy printed circuit board layout due to its data flow-through pinout, where all inputs are on one side and all outputs are on the opposite side of the package.
It operates within a voltage range of 4.5 V to 5.5 V, making it compatible with TTL (Transistor-Transistor Logic) systems. The device features 3-state outputs, which can be set to a high-impedance state when either of the output-enable inputs is high. This functionality is particularly useful in bus-oriented systems where multiple devices need to share the same data lines.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 4.5 | 5 | 5.5 | V |
| VIH (High-Level Input Voltage) | 2 | 2 | 2 | V |
| VIL (Low-Level Input Voltage) | 0.8 | 0.8 | 0.8 | V |
| TA (Operating Free-Air Temperature) | -40 | - | 85 | °C |
| tpd (Propagation Delay Time) | 12 | 21 | 31 | ns (at VCC = 5.5 V) |
| ICC (Supply Current) | 8 | 80 | 160 | µA (at VCC = 5.5 V) |
| IO (Output Drive) | ±6 | - | - | mA (at VCC = 5 V) |
Key Features
- Operating voltage range of 4.5 V to 5.5 V, compatible with TTL systems.
- High-current 3-state outputs that can drive up to 15 LSTTL loads or interface directly with system bus.
- Low power consumption with a maximum supply current (ICC) of 80 µA.
- Typical propagation delay time (tpd) of 12 ns at 5.5 V.
- ±6-mA output drive at 5 V.
- Low input current of 1 µA max.
- Inputs are TTL-voltage compatible.
- Data flow-through pinout for easy PCB layout.
Applications
The SN74HCT541NSR is suitable for various applications requiring high-speed data transmission and buffering, such as:
- Bus-oriented systems where multiple devices share the same data lines.
- High-speed digital circuits requiring low propagation delay.
- Systems needing to drive multiple LSTTL loads.
- Embedded systems and microcontrollers requiring buffer and line driver functionality.
Q & A
- What is the operating voltage range of the SN74HCT541NSR?
The operating voltage range is 4.5 V to 5.5 V.
- What is the typical propagation delay time of the SN74HCT541NSR?
The typical propagation delay time is 12 ns at 5.5 V.
- How many LSTTL loads can the SN74HCT541NSR drive?
The device can drive up to 15 LSTTL loads.
- What is the maximum supply current (ICC) of the SN74HCT541NSR?
The maximum supply current is 80 µA.
- What is the output drive capability of the SN74HCT541NSR?
The device has an output drive capability of ±6 mA at 5 V.
- What is the input current of the SN74HCT541NSR?
The input current is 1 µA max.
- Are the inputs of the SN74HCT541NSR TTL-voltage compatible?
Yes, the inputs are TTL-voltage compatible.
- What is the operating temperature range of the SN74HCT541NSR?
The operating temperature range is -40°C to 85°C.
- What package types are available for the SN74HCT541NSR?
The device is available in SOP (NS), SOIC (DW), SSOP (DB), PDIP (N), TSSOP (PW), and other packages.
- Is the SN74HCT541NSR RoHS compliant?
Yes, the device is RoHS compliant.
