AM652X datasheet(121/277 Pages) TI1

121 / 277 page

overshoot

undershoot

period

Overshoot = 20% of nominal

IO supply voltage

Undershoot = 20% of nominal

IO supply voltage

121

AM6548, AM6528, AM6546

AM6526, AM6527

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SPRSP08I – NOVEMBER 2017 – REVISED DECEMBER 2019

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Specifications

Absolute Maximum Ratings (continued)

over operating free-air temperature range (unless otherwise noted)

(1)(2)

(3) This parameter applies to all IO pins which are not fail-safe and the requirement applies to all values of IO supply voltage. For example,

if the voltage applied to a specific IO supply is 0 volts the valid input voltage range for any IO powered by that supply will be –0.3 to +0.3

volts. Special attention should be applied anytime peripheral devices are not powered from the same power sources used to power the

respective IO supply. It is important the attached peripheral never sources a voltage outside the valid input voltage range, including

power supply ramp-up and ramp-down sequences.

(4) The VDDA_VSYS_MON pin provides a way to monitor the system power supply and is not fail-safe, unless implemented with the

appropriate resistor voltage divider source. For more information, see Section 7.2.5, System Power Supply Monitor Design Guidelines.

(5) For current pulse injection:

Pins stressed per JEDEC JESD78D (Class II) and passed with specified I/O pin injection current and clamp voltage of 1.5 times

maximum recommended I/O voltage and negative 0.5 times maximum recommended I/O voltage.

For overvoltage performance:

Supplies stressed per JEDEC JESD78D (Class II) and passed specified voltage injection.

(6) VDD is the voltage on the corresponding power-supply pin(s) for the IO.

(7) For tape and reel the storage temperature range is [–10°C; +50°C] with a maximum relative humidity of 70%. TI recommends returning

to ambient room temperature before usage.

(8) The voltage on the VDDA_VSYS_MON pin should never exceed VDDA_POR_WKUP’s voltage.

(9) NC stands for No Connect.

Fail-safe IO terminals are designed such they do not have dependencies on the respective IO power

supply voltage. This allows external voltage sources to be connected to these IO terminals when the

respective IO power supplies are turned off. The I2C0_SCL, I2C0_SDA, I2C1_SCL, I2C1_SDA,

DDR_FS_RESETn, NMIn, VDDA_1P8_MON_WKUP, VDDA_1P8_MON0, VDDA_3P3_MON_WKUP, and

VDDA_3P3_MON0 are the only fail-safe IO terminals. All other IO terminals are not fail-safe and the

voltage applied to them should be limited to the value defined by the Steady State Max. Voltage at all IO

pins parameter in Section 5.1, Absolute Maximum Ratings.

(1)

Tovershoot + Tundershoot < 20% of Tperiod

Figure 5-1. IO Transient Voltage Ranges

5.2

ESD Ratings

VALUE

UNIT

V(ESD)

Electrostatic discharge

Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)

± 1000

Charged-device model (CDM), per JEDEC specification

ANSI/ESDA/JEDEC JS-002(2)

± 250

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

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