Overview
The TL16C554FNG4, produced by Texas Instruments, is an enhanced quadruple version of the asynchronous-communications element (ACE). 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. It is part of the TL16C554 series, which includes various package options such as the 68-pin plastic-leaded chip-carrier (PLCC) FN package and the 80-pin (TQFP) PN package.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Clock Frequency (fclock) | - | - | 16 MHz | - |
| Operating Free-Air Temperature (TA) | 0 | - | 70 °C | - |
| Operating Free-Air Temperature (TA) for I Version | -40 | - | 85 °C | - |
| High-Level Output Voltage (VOH) | 2.4 | - | - | V |
| Low-Level Output Voltage (VOL) | - | - | 0.4 | V |
| Input Leakage Current (IIkg) | - | - | ±10 µA | - |
| High-Impedance Output Current (IOZ) | - | - | ±20 µA | - |
Key Features
- Enhanced quadruple asynchronous-communications element (ACE) with four independent channels.
- Supports even-, odd-, or no-parity bit generation and 1-, 1 1/2-, or 2-stop bit generation.
- Programmable baud rate generator with a divisor range of 1 to 2^16-1.
- Internal FIFOs for both receive and transmit modes, storing up to 16 bytes plus three bits of error data per byte in the receiver FIFO.
- Complete status reporting capabilities, including break, parity, overrun, and framing 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.
- Selectable autoflow control feature to reduce software overhead and increase system efficiency.
Applications
- Serial communication systems in various industrial and commercial applications.
- Modem and peripheral device interfaces.
- Embedded systems requiring multiple serial communication channels.
- Automotive and aerospace systems where reliable serial communication is critical.
Q & A
- What is the TL16C554FNG4 used for?
The TL16C554FNG4 is used for serial-to-parallel and parallel-to-serial data conversion in communication systems.
- What are the package options available for the TL16C554 series?
The TL16C554 series is available in 68-pin PLCC FN package and 80-pin TQFP PN package.
- What is the maximum clock frequency supported by the TL16C554FNG4?
The maximum clock frequency supported is 16 MHz.
- What is the operating temperature range for the TL16C554FNG4?
The operating temperature range is from 0°C to 70°C, and -40°C to 85°C for the I version.
- Does the TL16C554FNG4 support FIFO mode?
Yes, it supports FIFO mode with internal FIFOs for both receive and transmit modes.
- What modem control functions are supported by the TL16C554FNG4?
It supports CTS, RTS, DSR, DTR, RI, and DCD modem control functions.
- How many bytes can the internal FIFOs store in FIFO mode?
The internal FIFOs can store up to 16 bytes plus three bits of error data per byte in the receiver FIFO.
- Does the TL16C554FNG4 have a programmable baud rate generator?
Yes, it includes a programmable baud rate generator with a divisor range of 1 to 2^16-1.
- What is the purpose of the autoflow control feature in the TL16C554FNG4?
The autoflow control feature reduces software overhead and increases system efficiency by automatically controlling serial-data flow using RTS output and CTS input signals.
- Can the TL16C554FNG4 be used in critical applications?
Yes, but it is important to refer to the notice concerning availability, standard warranty, and use in critical applications provided by Texas Instruments.
