Overview
The TL16C754B, produced by Texas Instruments, is a quad universal asynchronous receiver/transmitter (UART) with advanced features designed to enhance serial communication capabilities. This component is pin compatible with the TL16C554 and ST16C654 UARTs but offers several enhanced features. It supports up to 3 Mbps data rates and includes 64-byte FIFOs for both transmit and receive operations. The TL16C754B also features automatic hardware and software flow control, programmable baud rate generation, and multiple interrupt levels.
Key Specifications
| Specification | Description |
|---|---|
| Number of UARTs | Quad (4 channels) |
| FIFO Size | 64 bytes (transmit and receive) |
| Data Rate | Up to 3 Mbps |
| Input Clock | Up to 24 MHz (1.5 Mbps) for 5-V operation, up to 32 MHz (2 Mbps) for 3.3-V operation |
| Supply Voltage | 3.3-V or 5-V |
| Operating Temperature | −40°C to 85°C |
| Package Options | 80-pin TQFP, 68-pin PLCC |
| Baud Rate Generation | Programmable divisor (1 to 2^16-1) |
| Flow Control | Hardware (RTS/CTS) and software (Xon/Xoff) |
| Interrupt Capability | 6 prioritized levels of interrupts |
Key Features
- 64-Byte FIFOs: Both transmit and receive FIFOs with error flags and programmable trigger levels for DMA and interrupt generation.
- Automatic Flow Control: Hardware flow control using RTS/CTS and software flow control using programmable Xon/Xoff characters.
- Programmable Baud Rate: Baud rate generator that can divide the timing reference clock input by a divisor between 1 and (2^16-1).
- Multiple Interrupt Levels: 6 prioritized levels of interrupts with interrupt enable and identification registers.
- Sleep Mode: Reduces power consumption by stopping the UART clock and baud rate clock when not in use.
- Modem Control: Software interface for modem control operations, including DTR, RTS, and CTS signals.
- Error Detection: Detection of break, idle, framing errors, FIFO overflow, and parity errors.
- Internal Loopback Capability: For onboard diagnostics.
Applications
- Embedded Systems: Ideal for use in embedded systems requiring multiple serial communication channels.
- Industrial Automation: Suitable for industrial automation applications where reliable serial communication is crucial.
- Telecommunications: Used in telecommunications equipment for managing multiple serial connections.
- Medical Devices: Applicable in medical devices that require robust and reliable serial communication.
- Consumer Electronics: Found in various consumer electronics that need multiple UART channels.
Q & A
- What is the maximum data rate supported by the TL16C754B?
The TL16C754B supports data rates up to 3 Mbps.
- What are the FIFO sizes for the TL16C754B?
The TL16C754B has 64-byte FIFOs for both transmit and receive operations.
- Does the TL16C754B support hardware and software flow control?
- What are the package options available for the TL16C754B?
The TL16C754B is available in 80-pin TQFP and 68-pin PLCC packages.
- Can the TL16C754B operate in sleep mode to reduce power consumption?
- How many interrupt levels does the TL16C754B support?
The TL16C754B supports 6 prioritized levels of interrupts.
- What types of errors can the TL16C754B detect?
The TL16C754B can detect break, idle, framing errors, FIFO overflow, and parity errors.
- Does the TL16C754B have internal loopback capability for diagnostics?
- What is the operating temperature range of the TL16C754B?
The operating temperature range is −40°C to 85°C.
- Can the TL16C754B be used in both 3.3-V and 5-V systems?
