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TL16C754BFNG4 bảng dữ liệu(PDF) 2 Page - Texas Instruments |
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TL16C754BFNG4 bảng dữ liệu(HTML) 2 Page - Texas Instruments |
2 / 40 page TL16C754B QUAD UART WITH 64BYTE FIFO SLLS397A − NOVEMBER 1999 − REVISED JUNE 2004 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 28 29 DSRD CTSD DTRD GND RTSD INTD CSD TXD IOR TXC CSC INTC RTSC VCC DTRC CTSC DSRC 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 30 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 DSRA CTSA DTRA VCC RTSA INTA CSA TXA IOW TXB CSB INTB RTSB GND DTRB CTSB DSRB 31 32 33 34 87 6 5 4 93 168 67 2 35 36 37 38 39 66 65 27 64 63 62 61 40 41 42 43 FN PACKAGE (TOP VIEW) TL16C754BFN NC − No internal connection description The TL16C754B is a quad universal asynchronous receiver/transmitter (UART) with 64-byte FIFOs, automatic hardware/software flow control, and data rates up to 3 Mbps. The TL16C754B offers enhanced features. It has a transmission control register (TCR) that stores received FIFO threshold level 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 loopback capability allows onboard diagnostics. The UART transmits data sent to it from 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 software flow control and hardware flow control capabilities. The TL16C754B is available in 80-pin TQFP and 68-pin PLCC packages. |
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Mô tả tương tự - TL16C754BFNG4 |
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