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ATAM894 Datasheet(PDF) 90 Page - ATMEL Corporation |
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ATAM894 Datasheet(HTML) 90 Page - ATMEL Corporation |
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90 / 97 page  90 4679D–4BMCU–05/05 ATAM894 11. AC Characteristics Supply voltage V DD = 1.8 to 6.5V, VSS = 0V, Tamb = 25°C unless otherwise specified. Parameters Test Conditions Symbol Min. Typ. Max. Unit Operation Cycle Time System clock cycle V DD = 1.8 to 6.5V Tamb = –40 to 85° C tSYSCL 500 2000 ns VDD = 2.4 to 6.5V T amb = –40 to 85° C t SYSCL 250 2000 ns Timer 2 input Timing Pin T2I Timer 2 input clock f T2I 5MHz Timer 2 input LOW time Rise/fall time < 10 ns t T2IL 100 ns Timer 2 input HIGH time Rise/fall time < 10 ns t T2IH 100 ns Timer 3 Input Timing Pin T3I Timer 3 input clock f T3I SYSCL/2 MHz Timer 3 input LOW time Rise/fall time < 10 ns t T3IL 2 t SYSCL ns Timer 3 input HIGH time Rise/fall time < 10 ns t T3IH 2 t SYSCL ns Interrupt Request Input Timing Interrupt request LOW time Rise/fall time < 10 ns t IRL 100 ns Interrupt request HIGH time Rise/fall time < 10 ns t IRH 100 ns External System Clock EXSCL at OSC1, ECM = EN Rise/fall time < 10 ns f EXSCL 0.5 4 MHz EXSCL at OSC1, ECM = DI Rise/fall time < 10 ns f EXSCL 0.02 4 MHz Input HIGH time Rise/fall time < 10 ns t IH 0.1 µs Reset Timing Power-on reset time V DD > VPOR t POR 1.5 5 ms RC-Oscillator 1 Frequency f RcOut1 3.8 MHz Stability V DD = 2.0 to 6.5V Tamb = –40 to 85° C ∆f/f ±50 % RC-Oscillator 2 - External Resistor Frequency Rext = 180 kΩ fRcOut2 4MHz Stability VDD = 2.0 to 6.5 V Tamb = –40 to 85° C ∆f/f ±15 % Stabilization time tS 10 µs 4-MHz Crystal Oscillator (Operating Range VDD = 2.2 V to 6.5 V) Frequency fX 4MHz Start-up time tSQ 5ms Stability ∆f/f –10 10 ppm Integrated input/output capacitances (configurable) CIN/COUT programmable CIN C OUT 0, 2, 5, 7, 10 or 12 0, 2, 5, 7, 10 or 12 pF pF |
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