NXP | SC16C752BIB48,128

The SC16C752B is a dual Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFOs, automatic hardware/software flow control, and data rates up to 5 Mbit/s (3.3 V and 5 V). The SC16C752B offers enhanced features. It has a Transmission Control Register (TCR) that stores receiver FIFO threshold levels to start/stop transmission during hardware and software flow control. With the FIFO Rdy register, the software gets the status of TXRDYn/RXRDYn for all four ports in one access. On-chip status registers provide the user with error indications, operational status, and modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows on-board diagnostics.

Features and benefits:

• Pin compatible with SC16C2550 with additional enhancements
• Up to 5 Mbit/s baud rate (at 3.3 V and 5 V; at 2.5 V maximum baud rate is 3 Mbit/s)
• 64-byte transmit FIFO
• 64-byte receive FIFO with error flags
• Programmable and selectable transmit and receive FIFO trigger levels for DMA and interrupt generation
• Optional data flow resume by Xon any character
• DMA signalling capability for both received and transmitted data
• Supports 5 V, 3.3 V and 2.5 V operation
• 5 V tolerant on input only pins1
• Software selectable baud rate generator
• Prescaler provides additional divide-by-4 function
• Industrial temperature range (−40 °C to +85 °C)
• Pin and software compatible with SC16C752, TL16C752
• Fast data bus access time
• Programmable Sleep mode