5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs The SC16C554BIBS is a quad universal asynchronous receiver/transmitter (UART) manufactured by NXP. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** NXP Semiconductors
- **Type:** Quad UART
- **Data Rate:** Up to 5 Mbps
- **Operating Voltage:** 3.3V or 5V
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** LQFP (Low-Profile Quad Flat Package)
- **Interface:** Parallel (8-bit data bus)
- **FIFO Depth:** 64 bytes (per channel)
- **Interrupt Support:** Yes (individually for each UART)
- **Flow Control:** Hardware (RTS/CTS) and software (XON/XOFF)
### **Descriptions:**
- The SC16C554BIBS integrates four independent UART channels in a single chip.
- It is designed for high-performance serial communication applications.
- Supports industrial temperature ranges for rugged environments.
### **Features:**
1. **Four Independent UART Channels** – Each with full-duplex operation.
2. **64-Byte FIFOs** – Reduces CPU overhead by buffering data.
3. **Programmable Baud Rate** – Up to 5 Mbps.
4. **Auto Flow Control** – Supports RTS/CTS for hardware handshaking.
5. **Low Power Consumption** – Suitable for power-sensitive applications.
6. **Industrial-Grade Reliability** – Operates in harsh conditions (-40°C to +85°C).
7. **Compatibility** – Works with 3.3V or 5V systems.
This information is based solely on the manufacturer's datasheet and specifications.
