Overview
The TL16C554AIPN is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments. This component integrates four improved TL16C550C ACEs along with steering logic, making it a robust solution for serial communication needs. Each channel of the quadruple ACE performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The TL16C554AIPN is available in various packages, including a 68-pin PLCC, 64-pin PQFP, and an 80-pin TQFP (LQFP) package.
Key Specifications
| Parameter | Description |
|---|---|
| Package | LQFP (PN) with 80 pins |
| Operating Temperature Range | -40°C to 85°C |
| Clock Rate | Up to 16 MHz for up to 1-Mbaud operation |
| Supply Voltage | 3.3 V and 5 V |
| FIFO Size | 16 bytes (plus three bits of error data per byte in the receiver FIFO) |
| Baud Rate Generators | Programmable, dividing any input reference clock by 1 to (2^16 - 1) |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit | Even-, odd-, or no-parity bit |
| Stop Bit Generation | 1-, 1 1/2-, or 2-stop bit generation |
| Interrupts | Independently controlled transmit, receive, line status, and data set interrupts |
Key Features
- Integrated Asynchronous-Communications Element with four improved TL16C550C ACEs plus steering logic
- In FIFO mode, each ACE transmitter and receiver is buffered with 16-byte FIFOs to reduce CPU interrupts
- In TL16C450 mode, hold and shift registers eliminate the need for precise synchronization between the CPU and serial data
- Programmable baud-rate generators allowing division of any input reference clock by 1 to (2^16 - 1)
- Fully programmable serial interface characteristics, including character length, parity, and stop bits
- False start bit detection, complete status reporting capabilities, and line break generation and detection
- Internal diagnostic capabilities including loopback controls and error simulation (break, parity, overrun, framing error)
- Fully prioritized interrupt system controls and modem control functions (CTS, RTS, DSR, DTR, RI, and DCD)
- 3-state outputs providing TTL drive capabilities for bidirectional data bus and control bus
- Programmable auto-RTS and auto-CTS for efficient serial-data flow control
Applications
The TL16C554AIPN is suitable for a wide range of applications requiring robust serial communication capabilities, including:
- Embedded systems and microcontrollers needing multiple serial interfaces
- Industrial control systems and automation
- Telecommunication equipment and modems
- Point-of-sale terminals and other serial communication devices
- Medical devices and diagnostic equipment requiring reliable serial communication
Q & A
- What is the TL16C554AIPN?
The TL16C554AIPN is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments.
- What are the key features of the TL16C554AIPN?
Key features include integrated asynchronous-communications elements, 16-byte FIFOs, programmable baud-rate generators, and fully programmable serial interface characteristics.
- What are the available package options for the TL16C554AIPN?
The TL16C554AIPN is available in 68-pin PLCC, 64-pin PQFP, and 80-pin TQFP (LQFP) packages.
- What is the operating temperature range of the TL16C554AIPN?
The operating temperature range is -40°C to 85°C.
- What are the supply voltage options for the TL16C554AIPN?
The component supports both 3.3 V and 5 V supply voltages.
- How does the FIFO mode operate in the TL16C554AIPN?
In FIFO mode, each ACE transmitter and receiver is buffered with 16-byte FIFOs to reduce the number of interrupts to the CPU.
- What are the modem control functions supported by the TL16C554AIPN?
The component supports modem control functions including CTS, RTS, DSR, DTR, RI, and DCD.
- Does the TL16C554AIPN support internal diagnostic capabilities?
Yes, it includes loopback controls for communications link fault isolation and error simulation (break, parity, overrun, framing error).
- How does the programmable auto-RTS and auto-CTS feature work?
The programmable auto-RTS and auto-CTS feature allows for efficient serial-data flow control by automatically controlling the transmitter and receiver using RTS output and CTS input signals.
- What are some typical applications of the TL16C554AIPN?
Typical applications include embedded systems, industrial control systems, telecommunication equipment, point-of-sale terminals, and medical devices.
