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MCIMX503CVM8B 数据表(PDF) 37 Page - Freescale Semiconductor, Inc |
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MCIMX503CVM8B 数据表(HTML) 37 Page - Freescale Semiconductor, Inc |
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37 / 134 page ![]() Electrical Characteristics i.MX50 Applications Processors for Consumer Products, Rev. 2 Freescale Semiconductor 37 4.4.1 GPIO Output Buffer Impedance Table 23 shows the GPIO output buffer impedance of the i.MX50 processor. 4.4.2 LVIO Output Buffer Impedance Table 24 shows the LVIO output buffer impedance of the i.MX50 processor. Table 23. GPIO Output Buffer Impedance Parameter Symbol Test Conditions Min Typ Max Unit OVDD 2.775 V OVDD 1.875V Output driver impedance Rpu Low drive strength, Ztl = 150 Ω Medium drive strength, Ztl = 75 Ω High drive strength, Ztl = 50 Ω Max drive strength, Ztl = 37.5 Ω 80 40 27 20 104 52 35 26 150 75 51 38 250 125 83 62 Ω Output driver impedance Rpd Low drive strength, Ztl = 150 Ω Medium drive strength, Ztl = 75 Ω High drive strength, Ztl = 50 Ω Max drive strength, Ztl = 37.5 Ω 64 32 21 16 88 44 30 22 134 66 44 34 243 122 81 61 Ω Table 24. LVIO Output Buffer Impedance Parameter Symbol Test Conditions Min Typ Max Unit OVDD 2.775 V OVDD 1.875V Output driver impedance Rpu Low drive strength, Ztl = 150 Ω Medium drive strength, Ztl = 75 Ω High drive strength, Ztl = 50 Ω Max drive strength, Ztl = 37.5 Ω 80 40 27 20 104 52 35 26 150 75 51 38 250 125 83 62 Ω Output driver impedance Rpd Low drive strength, Ztl = 150 Ω Medium drive strength, Ztl = 75 Ω High drive strength, Ztl = 50 Ω Max drive strength, Ztl = 37.5 Ω 64 32 21 16 88 44 30 22 134 66 44 34 243 122 81 61 Ω |
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