Overview
The TL16C554APNR 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 read by the CPU at any time during operation, providing detailed status and error conditions. The TL16C554APNR is available in an 80-pin Thin Quad Flat Pack (TQFP) PN package, making it suitable for a variety of communication-intensive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | TQFP (PN) | - |
| Pins | 80 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage | 3.3 V, 5 V | V |
| Clock Frequency | Up to 16 MHz | Hz |
| Baud Rate | DC to 1 Mbit/s | bit/s |
| FIFO Size | 16 bytes (plus 3 bits of error data per byte) | - |
| High-Level Output Voltage | 2.4 V (at IOH = -1 mA) | V |
| Low-Level Output Voltage | 0.4 V (at IOL = 1.6 mA) | V |
Key Features
- Integrated Asynchronous-Communications Element (ACE) 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).
- Support for 5-, 6-, 7-, or 8-bit characters, even-, odd-, or no-parity bit, and 1-, 1 1/2-, or 2-stop bit generation.
- 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 TL16C554APNR is suitable for various communication-intensive applications, including:
- Modem interfaces and serial communication systems.
- Industrial control systems requiring multiple serial ports.
- Embedded systems needing high-speed serial communication.
- Telecommunication equipment and network devices.
- Automotive and aerospace systems requiring reliable serial communication.
Q & A
- What is the TL16C554APNR?
The TL16C554APNR is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE) produced by Texas Instruments.
- What package types are available for the TL16C554APNR?
The TL16C554APNR is available in an 80-pin Thin Quad Flat Pack (TQFP) PN package, as well as 68-pin PLCC and 64-pin PQFP packages for other variants.
- What is the operating temperature range of the TL16C554APNR?
The operating temperature range is from 0°C to 70°C.
- What are the supported supply voltages for the TL16C554APNR?
The component supports both 3.3 V and 5 V supply voltages.
- What is the maximum clock frequency for the TL16C554APNR?
The maximum clock frequency is up to 16 MHz.
- What is the FIFO size of the TL16C554APNR?
Each ACE has a 16-byte FIFO (plus three bits of error data per byte) for both receive and transmit modes.
- Does the TL16C554APNR support autoflow control?
- What modem control functions are supported by the TL16C554APNR?
The component supports modem control functions including CTS, RTS, DSR, DTR, RI, and DCD.
- Can the TL16C554APNR be used in industrial control systems?
- Does the TL16C554APNR have internal diagnostic capabilities?
