Overview
The TL16C550CIPTG4, produced by Texas Instruments, is a functional upgrade of the TL16C550B asynchronous communications element (ACE), which itself is an upgrade of the TL16C450. This component is designed to handle serial-to-parallel and parallel-to-serial conversions, making it a versatile tool for various communication applications. It operates in both TL16C450 mode and FIFO mode, providing significant relief to the CPU by buffering received and transmitted characters. The device includes advanced features such as programmable auto-RTS and auto-CTS, modem control capabilities, and a fully prioritized interrupt system.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.75 | 5 | 5.25 | V |
| Input Voltage (VI) | 0 | - | VCC | V |
| High-Level Input Voltage (VIH) | 2 | - | VCC | V |
| Low-Level Input Voltage (VIL) | 0.8 | - | 0 | V |
| Operating Free-Air Temperature (TA) | -40 | - | 85 | °C |
| Storage Temperature (Tstg) | -65 | - | 150 | °C |
| Clock Rate | - | - | 16 MHz | - |
| Baud Rate | - | - | 1 Mbaud | - |
Key Features
- Programmable Auto-RTS and Auto-CTS: Allows for automatic control of serial data flow using RTS output and CTS input signals, reducing software overhead and eliminating overrun errors.
- Modem Control Outputs: Capable of driving a RJ11 cable directly when equipment is on the same power drop.
- FIFO Mode: Receiver and transmitter FIFOs store up to 16 bytes, including three additional bits of error status per byte for the receiver FIFO.
- Programmable Baud Rate Generator: Divides any input reference clock by 1 to 65535 and generates an internal 16× clock for the internal transmitter logic.
- Standard Asynchronous Communication Bits: Supports start, stop, and parity bits in the serial data stream.
- 5-V and 3.3-V Operation: Compatible with both voltage levels.
- Independent Receiver Clock Input: Allows for independent clocking of the receiver.
- Interrupts and Status Reporting: Independently controlled transmit, receive, line status, and data set interrupts, along with complete status reporting capabilities.
- Internal Diagnostic Capabilities: Includes loopback controls for communications link fault isolation and simulation of break, parity, overrun, and framing errors.
Applications
- Serial Communication Systems: Ideal for systems requiring high-speed serial communication, such as modems, serial ports, and network interfaces.
- Embedded Systems: Suitable for use in embedded systems where efficient serial communication is crucial.
- Industrial Automation: Used in industrial automation for reliable and efficient serial data transmission.
- Telecommunication Equipment: Employed in telecommunication equipment for handling serial data streams.
Q & A
- What is the maximum baud rate supported by the TL16C550CIPTG4?
The TL16C550CIPTG4 supports up to 1 Mbaud with a 16-MHz input clock.
- What are the operating voltage levels for the TL16C550CIPTG4?
The device operates at both 5-V and 3.3-V levels.
- How does the autoflow control feature work in the TL16C550CIPTG4?
The autoflow control feature uses auto-RTS and auto-CTS to automatically control serial data flow, preventing overrun errors by ensuring data transmission only when the receiver FIFO has space.
- What is the capacity of the FIFOs in the TL16C550CIPTG4?
The receiver and transmitter FIFOs each store up to 16 bytes, including three additional bits of error status per byte for the receiver FIFO.
- Does the TL16C550CIPTG4 support modem control functions?
Yes, it includes complete modem control capability with functions such as CTS, RTS, DSR, DTR, RI, and DCD.
- How does the programmable baud rate generator work?
The baud rate generator can divide any input reference clock by divisors from 1 to 65535 and produces a 16× reference clock for the internal transmitter logic.
- What are the thermal specifications for the TL16C550CIPTG4?
The operating free-air temperature range is from -40°C to 85°C, and the storage temperature range is from -65°C to 150°C.
- Does the TL16C550CIPTG4 support independent receiver clocking?
Yes, it allows for independent clocking of the receiver.
- What kind of interrupts does the TL16C550CIPTG4 support?
The device supports independently controlled transmit, receive, line status, and data set interrupts.
- Are there any internal diagnostic capabilities in the TL16C550CIPTG4?
Yes, it includes loopback controls for communications link fault isolation and simulation of break, parity, overrun, and framing errors.
