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SC16C752B 数据表(PDF) 1 Page - NXP Semiconductors |
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SC16C752B 数据表(HTML) 1 Page - NXP Semiconductors |
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1 / 47 page ![]() SC16C752B 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs Rev. 03 — 14 December 2004 Product data 1. Description 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 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 loop-back 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, 6, 7, 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 overflow, and parity errors. The transmitter can detect FIFO underflow. The UART also contains a software interface for modem control operations, and has software flow control and hardware flow control capabilities. The SC16C752B is available in plastic LQFP48 and HVQFN32 packages. 2. Features s Dual channel s Pin compatible with SC16C2550 with additional enhancements s 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) s 64-byte transmit FIFO s 64-byte receive FIFO with error flags s Programmable and selectable transmit and receive FIFO trigger levels for DMA and interrupt generation s Software/hardware flow control x Programmable Xon/Xoff characters x Programmable auto-RTS and auto-CTS s Optional data flow resume by Xon any character s DMA signalling capability for both received and transmitted data s Supports 5 V, 3.3 V and 2.5 V operation s 5 V tolerant inputs |
类似零件编号 - SC16C752B |
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类似说明 - SC16C752B |
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