Overview
The SC28L194A1BE,557, produced by NXP USA Inc., is a Philips 28L194 Quad UART (Universal Asynchronous Receiver-Transmitter) integrated circuit. This single-chip CMOS-LSI communications device is designed to provide four full-duplex asynchronous channels, each with 16-byte FIFOs (First-In-First-Out buffers). It is fabricated using advanced CMOS technology, offering benefits such as low cost, high density, and low power consumption. The device supports both 3.3 V and 5 V supply voltages and is available in 80-pin Low Profile Quad Flat Pack (LQFP) and 68-pin Plastic Leaded Chip Carrier (PLCC) packages.
Key Specifications
| Specification | Description |
|---|---|
| Package Type | 80-pin LQFP, 68-pin PLCC |
| Supply Voltage | 3.3 V ± 10%, 5 V ± 10% |
| UART Channels | 4 full-duplex asynchronous channels |
| FIFO Depth | 16 bytes per channel |
| Baud Rates | 22 fixed baud rates, 2 programmable 16-bit counters |
| Operating Temperature | –40°C to +85°C |
| Interface | Synchronous host interface, modem controls, clocks, RTSN, I/O |
| Additional Features | Automatic in-band flow control, address recognition in Wake-up mode, on-chip crystal oscillator (2-8 MHz), power down mode |
Key Features
- Four independent full-duplex UART channels with 16-byte FIFOs each.
- Support for both 3.3 V and 5 V supply voltages.
- Automatic in-band flow control using Xon/Xoff characters defined by the user.
- Address recognition in the Wake-up mode.
- Synchronous bus interface for host communication.
- On-chip crystal oscillator (2-8 MHz).
- Power down mode for low power consumption.
- Diagnostic modes including automatic echo, local loop back, and remote loop back.
- Change of state detectors on all I/O ports.
- Two global inputs and two global outputs for general-purpose I/O.
Applications
The SC28L194A1BE,557 is suitable for various communication-intensive applications, including:
- Industrial automation systems requiring multiple serial interfaces.
- Embedded systems that need reliable and efficient serial communication.
- Network devices such as routers, switches, and modems.
- Point-of-sale terminals and other commercial equipment.
- Automotive and aerospace systems where robust serial communication is essential.
Q & A
- What is the SC28L194A1BE,557?
The SC28L194A1BE,557 is a Quad UART integrated circuit produced by NXP USA Inc., providing four full-duplex asynchronous channels. - What are the supported supply voltages?
The device supports both 3.3 V and 5 V supply voltages. - What is the FIFO depth per channel?
Each channel has a 16-byte FIFO. - What types of packages are available?
The device is available in 80-pin LQFP and 68-pin PLCC packages. - What is the operating temperature range?
The operating temperature range is –40°C to +85°C. - Does the device support automatic flow control?
Yes, it supports automatic in-band flow control using Xon/Xoff characters. - What diagnostic modes are available?
The device supports automatic echo, local loop back, and remote loop back diagnostic modes. - Is there an on-chip crystal oscillator?
Yes, the device includes an on-chip crystal oscillator that operates between 2-8 MHz. - Are there any power-saving features?
Yes, the device has a power down mode for low power consumption. - What kind of interface does the device use?
The device uses a synchronous host interface for communication. - Are there any additional I/O features?
Yes, the device includes two global inputs and two global outputs for general-purpose I/O, along with change of state detectors on all I/O ports.
