5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.), with 64-byte FIFOs and infrared (IrDA) encoder/decoder The SC16C654DBIB64 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 (Universal Asynchronous Receiver/Transmitter)
- **Package:** 64-pin LQFP (Low-Profile Quad Flat Package)
- **Operating Voltage:** 3.3V or 5V
- **Data Rate:** Up to 5 Mbps
- **FIFO Depth:** 64-byte transmit and receive FIFOs per channel
- **Interface:** Parallel (8-bit)
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
- The SC16C654DBIB64 is a high-performance quad UART designed for applications requiring multiple serial communication channels.
- It supports independent baud rate generation for each channel.
- Features include auto-hardware and software flow control, modem control signals, and programmable interrupts.
- Suitable for industrial control, networking, and embedded systems.
### **Features:**
1. **Four Independent UART Channels** – Each with full-duplex operation.
2. **64-Byte FIFOs** – Reduces CPU overhead by minimizing interrupts.
3. **Programmable Baud Rate** – Up to 5 Mbps (with 24/48 MHz clock).
4. **Auto Flow Control** – Supports RTS/CTS and XON/XOFF.
5. **Modem Control Signals** – Includes DTR, DSR, CD, and RI.
6. **Software/Hardware Compatibility** – Drop-in replacement for industry-standard UARTs.
7. **Low Power Consumption** – Suitable for power-sensitive applications.
8. **Industrial Temperature Range** – Operates reliably in harsh environments.
For detailed electrical characteristics and pin configurations, refer to the official NXP datasheet.
