SC16C752B Datasheet, PDF(1/47 Page) NXP Semiconductors – 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs

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SC16C752B Datasheet, PDF (1/47 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs

SC16C752B

5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte

FIFOs

Rev. 05 â 2 October 2008

Product data sheet

1. General description

The SC16C752B is a dual Universal Asynchronous Receiver/Transmitter (UART) with

64-byte FIFOs, automatic hardware/software ï¬ow 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

hardware and software ï¬ow control. With the FIFO Rdy register, the software gets the

status of TXRDY/RXRDY 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.

The UART transmits data, sent to it over the peripheral 8-bit bus, on the TX signal and

receives characters on the RX signal. Characters can be programmed to be 5 bits, 6 bits,

7 bits, or 8 bits. The UART has a 64-byte receive FIFO and transmit FIFO and can be

programmed to interrupt at different trigger levels. The UART generates its own desired

baud rate based upon a programmable divisor and its input clock. It can transmit even,

odd, or no parity and 1, 1.5, or 2 stop bits. The receiver can detect break, idle, or framing

errors, FIFO overï¬ow, and parity errors. The transmitter can detect FIFO underï¬ow. The

UART also contains a software interface for modem control operations, and has software

ï¬ow control and hardware ï¬ow control capabilities.

The SC16C752B is available in plastic LQFP48 and HVQFN32 packages.

2. Features

I Pin compatible with SC16C2550 with additional enhancements

I 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)

I 64-byte transmit FIFO

I 64-byte receive FIFO with error ï¬ags

I Programmable and selectable transmit and receive FIFO trigger levels for DMA and

interrupt generation

I Software/hardware ï¬ow control

N Programmable Xon/Xoff characters

N Programmable auto-RTS and auto-CTS

I Optional data ï¬ow resume by Xon any character

I DMA signalling capability for both received and transmitted data

I Supports 5 V, 3.3 V and 2.5 V operation

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