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ST16C580CP40 датащи(PDF) 27 Page - Exar Corporation |
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ST16C580CP40 датащи(HTML) 27 Page - Exar Corporation |
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27 / 41 page ![]() ST16C580 27 Rev. 1.20 AC ELECTRICAL CHARACTERISTICS T A=0° - 70°C (-40° - +85°C for Industrial grade packages), Vcc=3.3 - 5.0 V ± 10% unless otherwise specified. T 1w,T2w Clock pulse duration 17 17 ns T 3w Oscillator/Clock frequency 8 24 MHz T4w Address strobe width 35 25 ns T5s Address setup time 5 0 ns T5h Address hold time 5 5 ns T 6s Address setup time 5 0 ns T6h Chip select hold time 0 0 ns T 7d -IOR delay from chip select 10 10 ns Note 1: T 7w -IOR strobe width 35 25 ns T 7h Chip select hold time from -IOR 0 0 ns Note 1: T 8d -IOR delay from address 10 10 ns Note 1: T 9d Read cycle delay 40 30 ns T 11d -IOR to -DDIS delay 15 10 ns 100 pF load T 12d Delay from -IOR to data 35 25 ns T 12h Data disable time 25 15 ns T 13d -IOW delay from chip select 10 10 ns Note 1: T 13w -IOW strobe width 40 25 ns T 13h Chip select hold time from -IOW 0 0 ns T 14d -IOW delay from address 10 10 ns Note 1: T 15d Write cycle delay 40 30 ns T 16s Data setup time 20 15 ns T 16h Data hold time 5 5 ns T 17d Delay from -IOW to output 50 40 ns 100 pF load T 18d Delay to set interrupt from MODEM 40 35 ns 100 pF load input T 19d Delay to reset interrupt from -IOR 40 35 ns 100 pF load T 20d Delay from stop to set interrupt 1 1 Rclk T 21d Delay from -IOR to reset interrupt 45 40 ns 100 pF load T 22d Delay from stop to interrupt 45 40 ns T 23d Delay from initial INT reset to transmit 8 24 8 24 Rclk start T 24d Delay from -IOW to reset interrupt 45 40 ns T 25d Delay from stop to set -RxRdy 1 1 Rclk T 26d Delay from -IOR to reset -RxRdy 45 40 ns T 27d Delay from -IOW to set -TxRdy 45 40 ns T 28d Delay from start to reset -TxRdy 8 8 Rclk T R Reset pulse width 40 40 ns N Baud rate devisor 1 216-1 1 216-1 Rclk Note 1: Applicable only when -AS is tied low. Symbol Parameter Limits Limits Units Conditions 3.3 5.0 Min Max Min Max |
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