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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8349EVVALDB датащи(PDF) 50 Page - Freescale Semiconductor, Inc |
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MPC8349EVVALDB датащи(HTML) 50 Page - Freescale Semiconductor, Inc |
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50 / 87 page  MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13 50 Freescale Semiconductor GPIO 14.2 Timer AC Timing Specifications Table 48 provides the timer input and output AC timing specifications. 15 GPIO This section describes the DC and AC electrical specifications for the GPIO. 15.1 GPIO DC Electrical Characteristics Table 49 provides the DC electrical characteristics for the MPC8349EA GPIO. Output low voltage VOL IOL = 8.0 mA — 0.5 V Output low voltage VOL IOL = 3.2 mA — 0.4 V Table 48. Timers Input AC Timing Specifications1 Parameter Symbol2 Min Unit Timers inputs—minimum pulse width tTIWID 20 ns Notes: 1. Input specifications are measured from the 50 percent level of the signal to the 50 percent level of the rising edge of CLKIN. Timings are measured at the pin. 2. Timer inputs and outputs are asynchronous to any visible clock. Timer outputs should be synchronized before use by external synchronous logic. Timer inputs are required to be valid for at least tTIWID ns to ensure proper operation. Table 49. GPIO DC Electrical Characteristics PArameter Symbol Condition Min Max Unit Input high voltage VIH —2.0 OVDD +0.3 V Input low voltage VIL —–0.3 0.8 V Input current IIN —— ±5 μA Output high voltage VOH IOH = –8.0 mA 2.4 — V Output low voltage VOL IOL = 8.0 mA — 0.5 V Output low voltage VOL IOL = 3.2 mA — 0.4 V Table 47. Timer DC Electrical Characteristics (continued) Parameter Symbol Condition Min Max Unit |
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