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Z86E21 Datasheet(PDF) 10 Page - Zilog, Inc. |
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Z86E21 Datasheet(HTML) 10 Page - Zilog, Inc. |
10 / 12 page 10 AC CHARACTERISTICS Additional Timing Diagram Clock 1 3 4 5 2 2 3 T IRQ IN N Additional Timing AC CHARACTERISTICS Additional Timing Table T A = 0°C to 70°CTA = -40°C to 105°C 12 MHz 16 MHz 12 MHz 16 MHz No Symbol Parameter Max Min Max Min Max Min Max Min Units Notes 1 TpC Input Clock Period 83 1000 62.5 1000 83 1000 62.5 1000 ns [1] 2 TrC,TfC Clock Input Rise & Fall Times 15 10 15 10 ns [1] 3 TwC Input Clock Width 37 21 37 21 ns [1] 4 TwTinL Timer Input Low Width 75 50 75 50 ns [2] 5 TwTinH Timer Input High Width 3TpC 3TpC 3TpC 3TpC [2] 6 TpTin Timer Input Period 8TpC 8TpC 8TpC 8TpC [2] 7 TrTin,TfTin Timer Input Rise & Fall Times 100 100 100 100 ns [2] 8A TwIL Interrupt Request Input Low Times 70 50 70 50 ns [2,4] 8B TwIL Interrupt Request Input Low Times 3TpC 3TpC 3TpC 3TpC [2,5] 9 TwIH Interrupt Request Input High Times 3TpC 3TpC 3TpC 3TpC [2,3] Notes: [1] Clock timing references use 3.8V for a logic 1 and 0.8V for a logic 0. [2] Timing references use 2.0V for a logic 1 and 0.8V for a logic 0. [3] Interrupt references request via Port 3. [4] Interrupt request via Port 3 (P31-P33). [5] Interrupt request via Port 30. |
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