Overview
The TL16C450FN, produced by Texas Instruments, is a CMOS version of an asynchronous communications element (ACE). It functions as a serial input/output interface in microcomputer systems, performing serial-to-parallel and parallel-to-serial conversions for data exchanged between the CPU and peripheral devices or modems. The device includes a programmable baud rate generator, complete modem control capabilities, and a prioritized interrupt system, making it a versatile component for various communication applications.
Key Specifications
| Specification | Value |
|---|---|
| Package | PLCC (FN) - 44 pins |
| Operating Temperature Range | 0 to 70°C |
| Baud Rate Generation | dc to 256 Kbit/s |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit Generation and Detection | Even-, Odd-, or No-Parity |
| Stop Bit Generation | 1-, 1 1/2-, or 2-stop bits |
| Interrupt Controls | Transmit, Receive, Line Status, and Data Set Interrupts |
| Modem Control Functions | CTS, RTS, DSR, DTR, RI, and DCD |
Key Features
- Programmable baud rate generator allowing division of any input reference clock by 1 to (2^16 - 1) and generating an internal 16× clock.
- Full double buffering to eliminate the need for precise synchronization.
- Standard asynchronous communication bits (start, stop, and parity) added or deleted from the serial data stream.
- Independent receiver clock input.
- Transmit, receive, line status, and data set interrupts independently controlled.
- Complete status reporting capabilities and internal diagnostic capabilities including loopback controls and error simulation.
- 3-state TTL drive capabilities for bidirectional data bus and control bus.
- Line break generation and detection.
- Fully prioritized interrupt system controls.
- Easily interfaces to most popular microprocessors.
Applications
The TL16C450FN is designed for use in various microcomputer systems requiring serial communication interfaces. It is particularly useful in applications involving modems, peripheral devices, and other serial communication links. Its compatibility with most popular microprocessors makes it a versatile choice for a wide range of communication systems.
Q & A
- What is the TL16C450FN used for? The TL16C450FN is used as a serial input/output interface in microcomputer systems, performing serial-to-parallel and parallel-to-serial conversions.
- What is the operating temperature range of the TL16C450FN? The operating temperature range is 0 to 70°C.
- What are the baud rate generation capabilities of the TL16C450FN? The device can generate baud rates from dc to 256 Kbit/s.
- Does the TL16C450FN support different character lengths? Yes, it supports 5-, 6-, 7-, or 8-bit characters.
- What modem control functions does the TL16C450FN provide? It provides CTS, RTS, DSR, DTR, RI, and DCD modem control functions.
- Can the TL16C450FN be used with various microprocessors? Yes, it easily interfaces to most popular microprocessors.
- What diagnostic capabilities does the TL16C450FN have? It includes loopback controls for communications link fault isolation and simulation of break, parity, overrun, and framing errors.
- How does the TL16C450FN handle interrupts? It has a fully prioritized interrupt system with independent controls for transmit, receive, line status, and data set interrupts.
- What is the package type of the TL16C450FN? The package type is PLCC (FN) with 44 pins.
- Does the TL16C450FN support double buffering? Yes, it features full double buffering to eliminate the need for precise synchronization.
