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CY8C4248AZI-L485 Fiches technique(PDF) 20 Page - Cypress Semiconductor |
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CY8C4248AZI-L485 Fiches technique(HTML) 20 Page - Cypress Semiconductor |
20 / 46 page PSoC® 4: PSoC 4200-L Family Datasheet Document Number: 001-91686 Rev. *E Page 20 of 46 XRES Note 3. Simultaneous switching transitions on many fully-loaded GPIO pins may cause ground perturbations depending on several factors including PCB and decoupling capacitor design. For applications that are very sensitive to ground perturbations, the slower GPIO slew rate setting may be used. Table 5. GPIO AC Specifications (Guaranteed by Characterization)[3] Spec ID# Parameter Description Min Typ Max Units Details/ Conditions SID70 TRISEF Rise time in fast strong mode 2 – 12 ns 3.3 V VDDD, Cload = 25 pF SID71 TFALLF Fall time in fast strong mode 2 – 12 ns 3.3 V VDDD, Cload = 25 pF SID72 TRISES Rise time in slow strong mode 10 – 60 ns 3.3 V VDDD, Cload = 25 pF SID73 TFALLS Fall time in slow strong mode 10 – 60 ns 3.3 V VDDD, Cload = 25 pF SID74 FGPIOUT1 GPIO Fout;3.3 V VDDD 5.5 V. Fast strong mode. – – 33 MHz 90/10%, 25 pF load, 60/40 duty cycle SID75 FGPIOUT2 GPIO Fout;1.7 V VDDD3.3 V. Fast strong mode. – – 16.7 MHz 90/10%, 25 pF load, 60/40 duty cycle SID76 FGPIOUT3 GPIO Fout;3.3 V VDDD 5.5 V. Slow strong mode. – – 7 MHz 90/10%, 25 pF load, 60/40 duty cycle SID245 FGPIOUT4 GPIO Fout;1.7 V VDDD 3.3 V. Slow strong mode. – – 3.5 MHz 90/10%, 25 pF load, 60/40 duty cycle SID246 FGPIOIN GPIO input operating frequency; 1.71 V VDDD 5.5 V – – 48 MHz 90/10% VIO Table 6. XRES DC Specifications Spec ID# Parameter Description Min Typ Max Units Details/ Conditions SID77 VIH Input voltage high threshold 0.7 × VDDD –– V CMOS Input SID78 VIL Input voltage low threshold – – 0.3 × VDDD VCMOS Input SID79 RPULLUP Pull-up resistor 3.5 5.6 8.5 kΩ SID80 CIN Input capacitance – 3 – pF SID81 VHYSXRES Input voltage hysteresis – 100 – mV Guaranteed by characterization SID82 IDIODE Current through protection diode to VDDD/VSS – – 100 µA Guaranteed by characterization Table 7. XRES AC Specifications Spec ID# Parameter Description Min Typ Max Units Details/ Conditions SID83 TRESETWIDTH Reset pulse width 1 – – µs Guaranteed by characterization |
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