Overview
The TL16C554APN is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments. This component is designed to perform 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. Each channel of the quadruple ACE can be monitored by the CPU at any time during operation, providing complete status and error condition information.
The TL16C554APN is available in an 80-pin LQFP (PN) package and supports both 3.3V and 5V operation, making it versatile for various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | LQFP (PN) |
| Number of Pins | 80 |
| Operating Temperature Range (°C) | 0 to 70 |
| Supply Voltage | 3.3V / 5V |
| Maximum Clock Rate | Up to 16 MHz |
| Maximum Baud Rate | Up to 1 Mbps |
| FIFO Size | 16 bytes (plus 3 bits of error data per byte) |
| Number of Channels | 4 |
| Parity Bit Generation | Even, Odd, or No Parity |
| Stop Bit Generation | 1, 1 1/2, or 2 Stop Bits |
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.
- Programmable baud-rate generators allowing division of any input reference clock by 1 to (2^16 - 1) and generating an internal 16 × clock.
- Adds or deletes standard asynchronous communication bits (start, stop, and parity) to or from the serial-data stream.
- Independently controlled transmit, receive, line status, and data set interrupts.
- Fully programmable serial interface characteristics, including 5-, 6-, 7-, or 8-bit characters.
- False start bit detection, complete status reporting capabilities, and line break generation and detection.
- Internal diagnostic capabilities, including loopback controls for communications link fault isolation and error simulation.
- 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 autoflow control.
Applications
The TL16C554APN is suitable for a wide range of applications requiring multiple serial communication channels, such as:
- Industrial control systems
- Network devices and routers
- Embedded systems
- Modem and serial communication interfaces
- Point-of-sale terminals and other serial-based peripherals
Q & A
- What is the TL16C554APN?
The TL16C554APN is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments.
- What package types are available for the TL16C554APN?
The TL16C554APN is available in an 80-pin LQFP (PN) package, as well as 68-pin PLCC and 64-pin PQFP packages.
- What are the operating voltage and temperature ranges for the TL16C554APN?
The component operates at 3.3V and 5V and has an operating temperature range of 0°C to 70°C.
- What is the maximum baud rate supported by the TL16C554APN?
The TL16C554APN supports baud rates up to 1 Mbps.
- How many FIFOs are there in the TL16C554APN, and what is their size?
Each channel has a 16-byte FIFO for both transmit and receive modes.
- What types of parity and stop bits can the TL16C554APN generate?
The component can generate even, odd, or no parity bits and 1, 1 1/2, or 2 stop bits.
- Does the TL16C554APN support modem control functions?
Yes, it supports modem control functions including CTS, RTS, DSR, DTR, RI, and DCD.
- What diagnostic capabilities does the TL16C554APN have?
The component includes loopback controls for communications link fault isolation and simulation of break, parity, overrun, and framing errors.
- Is the TL16C554APN RoHS compliant?
Yes, the TL16C554APN is RoHS compliant.
- What are some typical applications for the TL16C554APN?
Typical applications include industrial control systems, network devices, embedded systems, and serial communication interfaces.
- Can the TL16C554APN be used in systems requiring multiple serial communication channels?
Yes, it is designed for systems requiring multiple serial communication channels with its four independent ACEs.
