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TL16C552APN 数据表(PDF) 2 Page - Texas Instruments |
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TL16C552APN 数据表(HTML) 2 Page - Texas Instruments |
2 / 39 page TL16C552A, TL16C552AM DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH FIFO SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 22 23 NC ENIRQ TXRDY1 SIN0 VDD RESET CS2 IOR IOW A0 A1 A2 CS0 DSR0 RI0 DCD0 CTS0 GND NC NC 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NC NC RXRDY1 SIN1 ERR VDD SLCT BUSY PE ACK PEMD TRI CS1 CLK DSR1 RI1 GND DCD1 RXRDY0 NC 25 26 27 28 PN PACKAGE (TOP VIEW) 79 78 77 76 75 80 74 72 71 70 73 29 30 31 32 33 69 68 21 67 66 65 64 34 35 36 37 38 39 40 63 62 61 description The TL16C552A is an enhanced dual-channel version of the popular TL16C550B asynchronous communications element (ACE). The device serves two serial input /output interfaces simultaneously in microcomputer or microprocessor-based systems. Each channel performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The complete status of each channel of the dual ACE can be read at any time during functional operation by the CPU. The information obtained includes the type and condition of the transfer operations being performed and the error conditions encountered. In addition to its dual communications interface capabilities, the TL16C552A provides the user with a bidirectional parallel data port that fully supports the parallel Centronics-type printer interface. The parallel port and the two serial ports provide IBM PC/AT-compatible computers with a single device to serve the three system ports. A programmable baud rate generator that can divide the timing reference clock input by a divisor between 1 and (216 – 1) is included. The TL16C552A is available in a 68-pin plastic-leaded chip-carrier (FN) package, a 48-pin TQFP (PN) package, and the 80-pin TQFP (PN) package. The TL16C552AM is available in a 68-pin ceramic quad flat (HV) package. |
类似零件编号 - TL16C552APN |
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类似说明 - TL16C552APN |
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