Overview
The SN74LS245DWRG4 is a versatile octal bus transceiver from Texas Instruments, designed with Low-Power Schottky (LS) technology. This integrated circuit is crucial for managing data flow between bus lines in a wide array of digital systems. It allows for bidirectional communication, making it ideal for facilitating data transfer in microprocessor or microcontroller-based systems and in applications requiring a clear directional flow of data between buses.
The device features 8 channels and operates as two 4-bit or one 8-bit bus transceiver with 3-state outputs. Each channel can be independently controlled to either send or receive data, or to be placed in a high-impedance state, effectively disconnecting it from the bus. This high-impedance state ensures that multiple devices can share the same bus without interference.
Constructed with the reliability and engineering excellence for which Texas Instruments is known, the SN74LS245DWRG4 comes in a wide-body SOIC (Small Outline Integrated Circuit) package and is lead-free, RoHS-compliant, making it suitable for environmentally-sensitive applications. The device supports a wide operating temperature range, making it robust for industrial applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74LS245DWRG4 |
| Manufacturer | Texas Instruments |
| Description | IC TXRX NON-INVERT 5.25V 20SOIC |
| Logic Type | Transceiver, Non-Inverting |
| Output Type | 3-State |
| Voltage - Supply | 4.75 V ~ 5.25 V |
| Supplier Device Package | 20-SOIC |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Current - Output High, Low | 15mA, 24mA |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Bidirectional Communication: Allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input.
- 3-State Outputs: All outputs can be put into high impedance mode through the output-enable (OE) input, ensuring multiple devices can share the same bus without interference.
- PNP Inputs: Reduces dc loading on bus lines.
- Hysteresis on Bus Inputs: Built-in hysteresis improves noise margins.
- Wide Operating Temperature Range: Operates from 0°C to 70°C, making it robust for industrial applications.
- Lead-Free and RoHS Compliant: Suitable for environmentally-sensitive applications.
Applications
- Microprocessor and Microcontroller Systems: Ideal for facilitating data transfer in these systems.
- Industrial Control Systems: Robust design makes it suitable for complex industrial control systems.
- Computing Devices: Used in various computing devices for efficient data bus communication.
- Factory Automation and Control: Suitable for use in factory automation and control systems.
- Test and Measurement Equipment: Used in test and measurement applications due to its reliable performance.
Q & A
- What is the primary function of the SN74LS245DWRG4?
The primary function of the SN74LS245DWRG4 is to manage data flow between bus lines in digital systems, allowing for bidirectional communication.
- What type of logic does the SN74LS245DWRG4 use?
The SN74LS245DWRG4 uses Low-Power Schottky (LS) technology and is a non-inverting transceiver.
- What is the voltage supply range for the SN74LS245DWRG4?
The voltage supply range for the SN74LS245DWRG4 is 4.75 V to 5.25 V.
- What is the package type of the SN74LS245DWRG4?
The SN74LS245DWRG4 comes in a 20-SOIC (Small Outline Integrated Circuit) package.
- Is the SN74LS245DWRG4 lead-free and RoHS compliant?
- What is the operating temperature range of the SN74LS245DWRG4?
The operating temperature range of the SN74LS245DWRG4 is from 0°C to 70°C.
- How many bits per element does the SN74LS245DWRG4 support?
The SN74LS245DWRG4 supports 8 bits per element.
- What is the purpose of the DIR and OE inputs in the SN74LS245DWRG4?
The DIR input governs the direction of data flow, and the OE input can disable the outputs to achieve a high-impedance state.
- What are some common applications of the SN74LS245DWRG4?
- Does the SN74LS245DWRG4 have built-in hysteresis on bus inputs?
