SC16C2550 Datasheet | NXP Semiconductors

Dual UART with 16 bytes of transmit and receive FIFOs and infrared (Ir DA) encoder/decoder Rev. 03 - 19 June 2003 Product data 1. Description The SC16C2550 is a 2 channel Universal Asynchronous Receiver and Transmitter (UART) used for serial data munications. Its principal function is to convert parallel data into serial data and vice versa. The UART can handle serial data rates up to 5 Mbits/s. The SC16C2550 is pin patible with the ST16C2550. It will power-up to be functionally equivalent to the 16C2450. The SC16C2550 provides enhanced UART functions with 16-byte FIFOs, modem control interface, DMA mode data transfer. The DMA mode data transfer is controlled by the FIFO trigger levels and the TXRDY and RXRDY signals. On-board status registers provide the user with error indications and operational status. System interrupts and modem control Features may be tailored by software to meet specific user requirements. An internal loop-back capability allows on-board diagnostics. Independent programmable baud rate generators are provided to select transmit and receive baud rates. The SC16C2550 operates at 5 V, 3.3 V and 2.5 V and the Industrial temperature range, and is available in plastic PLCC44, LQFP48 and DIP40 packages. 2. Features s s s s s s s s s s s s s s s 2 channel UART 5 V, 3.3 V and 2.5 V operation Industrial temperature range Pin and functionally patible to 16C2450 and software patible with INS8250, SC16C550 Up to 5 Mbits/s data rate at 5 V and 3.3 V, and 3 Mbits/s at 2.5 V 16 byte transmit FIFO to reduce the bandwidth requirement of the external CPU 16 byte receive FIFO with error flags to reduce the bandwidth requirement of the external CPU Independent transmit and receive UART control Four selectable Receive FIFO interrupt trigger levels Automatic software/hardware flow control Programmable Xon/Xoff characters Software selectable Baud Rate Generator Sleep mode Standard asynchronous error and framing bits (Start, Stop, and Parity...