FIGURE 2. I

      參數(shù)資料
      型號(hào): XR16L651CM-F
      廠商: Exar Corporation
      文件頁數(shù): 12/56頁
      文件大?。?/td> 0K
      描述: IC UART FIFO 32B 48TQFP
      標(biāo)準(zhǔn)包裝: 250
      特點(diǎn): *
      通道數(shù): 1,UART
      FIFO's: 32 字節(jié)
      規(guī)程: 打印機(jī),RS232,RS422,RS485
      電源電壓: 2.25 V ~ 5.5 V
      帶并行端口:
      帶自動(dòng)流量控制功能:
      帶IrDA 編碼器/解碼器:
      帶故障啟動(dòng)位檢測(cè)功能:
      帶調(diào)制解調(diào)器控制功能:
      帶CMOS:
      安裝類型: 表面貼裝
      封裝/外殼: 48-TQFP
      供應(yīng)商設(shè)備封裝: 48-TQFP(7x7)
      包裝: 托盤
      XR16L651
      á
      2.25V TO 5.5V UART WITH 32-BYTE FIFO
      REV. 1.3.0
      2
      FIGURE 2. INTEL, MOTOROLA AND PC MODE PIN OUT
      ORDERING INFORMATION
      PART NUMBER
      PACKAGE
      OPERATING TEMPERATURE RANGE
      DEVICE STATUS
      XR16L651CM
      48-Lead TQFP
      0°C to +70°C
      Active
      XR16L651IM
      48-Lead TQFP
      -40°C to +85°C
      Active
      1 2 3 4 5 6 7 8 9 10 11 12
      36 35 34 33 32 31 30 29 28 27 26 25
      13
      1
      4
      15
      1
      6
      17
      1
      8
      19
      2
      0
      21
      2
      23
      24
      37
      3
      8
      39
      4
      0
      41
      4
      2
      43
      4
      45
      4
      6
      47
      48
      XR16L651
      48-TQFP
      in Intel Bus Mode
      N.
      C
      .
      D5
      D6
      D7
      RL
      C
      K
      A4
      RX
      TX
      CS
      0
      CS
      1
      CS
      2
      #
      B
      A
      UDOU
      T
      #
      AS#
      TXRDY#
      DDIS#
      S1
      IOR
      IOR#
      GND
      IOW
      IOW#
      XTAL2
      XTAL1
      ENIR
      VC
      C
      R
      ESET
      OP
      1
      #
      DT
      R#
      RT
      S
      #
      OP
      2
      #
      IN
      T
      RX
      R
      D
      Y
      #
      A0
      A1
      A2
      N.
      C
      GND
      A9
      CTS#
      DSR#
      CD#
      RI#
      VCC
      D0
      D1
      D2
      D3
      D4
      1 2 3 4 5 6 7 8 9 10 11 12
      36 35 34 33 32 31 30 29 28 27 26 25
      13
      1
      4
      15
      1
      6
      17
      1
      8
      19
      2
      0
      21
      2
      23
      24
      37
      3
      8
      39
      4
      0
      41
      4
      2
      43
      4
      45
      4
      6
      47
      48
      XR16L651
      48-TQFP in
      Motorola Bus Mode
      N.
      C
      .
      D5
      D6
      D7
      RL
      C
      K
      A4
      RX
      TX
      CS
      0
      CS
      1
      CS
      2
      #
      B
      A
      UDOU
      T
      #
      AS#
      TXRDY#
      DDIS#
      S1
      GND
      R/W#
      XTAL2
      XTAL1
      ENIR
      VC
      C
      R
      ESET
      #
      OP
      1
      #
      DT
      R#
      RT
      S
      #
      OP
      2
      #
      IN
      T#
      RX
      R
      D
      Y
      #
      A0
      A1
      A2
      N.
      C
      VCC
      A9
      CTS#
      DSR#
      CD#
      RI#
      VCC
      D0
      D1
      D2
      D3
      D4
      1 2 3 4 5 6 7 8 9 10 11 12
      36 35 34 33 32 31 30 29 28 27 26 25
      13
      1
      4
      15
      1
      6
      17
      1
      8
      19
      2
      0
      21
      2
      23
      24
      37
      3
      8
      39
      4
      0
      41
      4
      2
      43
      4
      45
      4
      6
      47
      48
      XR16L651
      48-TQFP
      in PC Mode
      N.
      C
      .
      D5
      D6
      D7
      S2
      A4
      RX
      TX
      A5
      A6
      A7
      LPT1#
      AEN#
      IRQC
      LPT2#
      S1
      A3
      IOR#
      GND
      A8
      IOW#
      XTAL2
      XTAL1
      ENIR
      GND
      R
      ESET
      OP
      1
      #
      DT
      R#
      RT
      S
      #
      S3
      IR
      Q
      A
      IR
      Q
      B
      A0
      A1
      A2
      N.
      C
      GND
      A9
      CTS#
      DSR#
      CD#
      RI#
      VCC
      D0
      D1
      D2
      D3
      D4
      Intel Bus Mode with
      IM# tied to GND and
      PCMODE# tied to VCC
      Motorola Bus Mode with
      IM# tied to VCC and
      PCMODE# tied to VCC
      PC Mode with IM# and
      PCMODE# tied to GND
      IM#
      : PIN 37
      PCMODE#
      : PIN 36
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