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DM385 数据表(PDF) 125 Page - Texas Instruments |
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DM385 数据表(HTML) 125 Page - Texas Instruments |
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125 / 281 page  DM385, DM388 www.ti.com SPRS821D – MARCH 2013 – REVISED DECEMBER 2013 Recommended Operating Conditions (continued) PARAMETER MIN NOM MAX UNIT High-level input voltage, LVCMOS (JTAG[TCK] pins), 3.3 2 V V(2) High-level input voltage, JTAG[TCK], 3.3 V 2.15 V High-level input voltage, JTAG[TCK], 1.8 V 1.45 V High-level input voltage, I2C (I2C[0] and I2C[1]) 0.7DVDD V High-level input voltage, LVCMOS(2), 1.8 V 0.65DVDDx V VIH High-level input voltage, DDR[0] signals in DDR2 mode VREFSSTL_DDR[x] V + 0.125 High-level input voltage, DDR[0] signals in DDR3 mode VREFSSTL_DDR[x] V + 0.1 High-level input voltage, DDR[0] signals in DDR3L mode VREFSSTL_DDR[x] V + 0.09 Low-level input voltage, LVCMOS(2), 3.3 V 0.8 V Low-level input voltage, JTAG[TCK] 0.45 V Low-level input voltage, I2C (I2C[0] and I2C[1]) 0.3DVDDx V Low-level input voltage, LVCMOS(2), 1.8 V 0.35DVDDx V Low-level input voltage, DDR[0] signals in DDR2 mode VREFSSTL_DDR[x] VIL V - 0.125 Low-level input voltage, DDR[0] signals in DDR3 mode VREFSSTL_DDR[x] V - 0.1 Low-level input voltage, DDR[0] signals in DDR3L mode VREFSSTL_DDR[x] V - 0.09 High-level output current 6 mA I/O buffers -6 mA IOH DDR[0] buffer @ 50- Ω -8 mA impedance setting Low-level output current 6 mA I/O buffers 6 mA IOL DDR[0] buffer @ 50- Ω 8 mA impedance setting VID Differential input voltage (SERDES_CLKN/P), [AC coupled] 0.250 2.0 V Transition time, 10% - 90%, All inputs (unless otherwise tt specified in the Electrical Data/Timing sections of each 0.25P or 10(4) ns peripheral) Operating junction temperature Commercial TJ 0 95 °C range(5) Temperature (default) Extended temperature -40 95 °C (4) Whichever is smaller. P = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve noise immunity on input signals. (5) For more detailed information on estimating junction temps within systems, see the IC Package Thermal Metrics Application Report (Literature Number: SPRA953). Copyright © 2013, Texas Instruments Incorporated Device Operating Conditions 125 Submit Documentation Feedback Product Folder Links: DM385 DM388 |
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