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TL16C452FN датащи(PDF) 8 Page - Texas Instruments |
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TL16C452FN датащи(HTML) 8 Page - Texas Instruments |
8 / 24 page TL16C451, TL16C452 ASYNCHRONOUS COMMUNICATIONS ELEMENTS SLLS053C – MAY 1989 – REVISED AUGUST 1999 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 tcW Cycle time, write (tw6 + td5 + td6) 175 ns tw1 Pulse duration, clock ↑ 1 50 ns tw2 Pulse duration, clock ↓ 1 50 ns tw5 Pulse duration, write strobe (IOW) ↑ 2 80 ns tw6 Pulse duration, read strobe (IOR) ↓ 3 80 ns twRST Pulse duration, reset 1000 ns tsu1 Setup time, address (A0 – A2) valid before IOW ↓ 2, 3 15 ns tsu2 Setup time, chip select (CSx) valid before IOW ↓ 2, 3 15 ns tsu3 Setup time, data (D0 – D7) valid before IOW ↑ 2 15 ns th1 Hold time, address (A0 – A2) valid after IOW ↑ 2, 3 20 ns th2 Hold time, chip select (CSx) valid after IOW ↑ 2, 3 20 ns th3 Hold time, data (D0 – D7) valid before IOW ↑ 2 15 ns td3 Delay time, write cycle (IOW) ↑ to IOW↓ 2 80 ns td4 Delay time, read cycle (IOR) ↑ to IOR↓ 3 80 ns system switching characteristics over recommended ranges of supply voltage and operating free-air temperature PARAMETER FIGURE TEST CONDITIONS MIN MAX UNIT td5 Delay time, data (D0 – D7) valid before read (IOR) ↑ 3 CL = 100 pF 60 ns td6 Delay time, floating data (D0 – D7) valid after read (IOR) ↑ 3 CL = 100 pF 0 60 ns tdis(R) Read to driver disable, IOR ↓ to BD0↓ 3 CL = 100 pF 60 ns receiver switching characteristics over recommended ranges of supply voltage and operating free-air temperature PARAMETER FIGURE TEST CONDITIONS MIN MAX UNIT td7 Delay time, RCLK ↑ to sample clock↑ 4 100 ns td8 Delay time stop (sample clock) ↑ to set interrupt (INTRPT)↑ 4 1 1 RCLK td8 Delay time, stop (sample clock) ↑ to set interrupt (INTRPT)↑ 4 1 1 cycles td9 Delay time, read RBR/LSR (IOR) ↑ to reset interrupt (INTRPT)↓ 4 CL = 100 pF 140 ns transmitter switching characteristics over recommended ranges of supply voltage and operating free-air temperature PARAMETER FIGURE TEST CONDITIONS MIN MAX UNIT td10 Delay time initial write THR (IOW) ↑ to transmit start (SOUT)↓ 5 8 24 baudout td10 Delay time, initial write THR (IOW) ↑ to transmit start (SOUT)↓ 5 8 24 cycles td11 Delay time stop (SOUT) low to interrupt (INTRPT) ↑ 5 8 8 baudout td11 Delay time, stop (SOUT) low to interrupt (INTRPT) ↑ 5 8 8 cycles td12 Delay time, write THR (IOW) ↓ to reset interrupt (INTRPT) low 5 CL = 100 pF 140 ns td13 Delay time initial write (IOW) ↑ to THRE interrupt (INTRPT)↑ 5 16 32 baudout td13 Delay time, initial write (IOW) ↑ to THRE interrupt (INTRPT)↑ 5 16 32 cycles td14 Delay time, read IIR (IOR) ↑ to reset THRE interrupt (INTRPT) low 5 CL = 100 pF 140 ns modem control switching characteristics over recommended ranges of supply voltage and operating free-air temperature PARAMETER FIGURE TEST CONDITIONS MIN MAX UNIT td15 Delay time, write MCR (IOW) ↑ to output (RTS, DTS)↓↑ 6 CL = 100 pF 100 ns |
Аналогичный номер детали - TL16C452FN |
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Аналогичное описание - TL16C452FN |
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