AM6442...ALV datasheet(99/244 Pages) TI

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over operating junction temperature range (unless otherwise noted)

(1)(2)

PARAMETER

MIN

MAX UNIT

Steady-state max voltage at all other IO pins(4)

USB0_VBUS(5)

-0.3

3.6

USB0_ID(6)

-0.3

3.6

All other IO pins

-0.3

IO supply

voltage + 0.3

Transient overshoot and undershoot at IO pin

20% of IO supply voltage for up to 20%

of the signal period (see Figure 7-1, IO

Transient Voltage Ranges)

0.2 × VDD(7)

Latch-up performance

TBD

TSTG

Storage temperature

-55

+150

°C

(1)

Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply

functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions. If

used outside the Section 7.4, Recommended Operating Conditions but within the Absolute Maximum Ratings, the device may not be

fully functional, and this may affect device reliability, functionality, performance, and shorten the device lifetime.

(2)

All voltage values are with respect to VSS, unless otherwise noted.

(3)

The VMON_VSYS pin provides a way to monitor the system power supply. For more information, see Section 9.3.4, System Power

Supply Monitor Design Guidelines.

(4)

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.

(5)

An external resistor divider is required to limit the voltage applied to this device pin. For more information, see Section 9.3.3, USB

Design Guidelines.

(6)

The USB0_ID pin is connected to analog circuits in the USB0 PHY. The analog circuits source a known current while measuring

voltage, to determine the resistance value (RID), if connected to VSS through a resistor. This pin should be connected to VSS for USB

host operation, or left unconnected for USB peripheral operation, and should never be connected to any external voltage source.

(7)

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

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 MCU_I2C0_SCL, MCU_I2C0_SDA, I2C0_SCL, I2C0_SDA,

EXTINTn, VMON_1P8_MCU, VMON_1P8_SOC, VMON_3P3_MCU, VMON_3P3_SOC, VMON_VSYS, and

MCU_PORz 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

7.1.

overshoot

undershoot

period

Overshoot = 20% of nominal

IO supply voltage

Undershoot = 20% of nominal

IO supply voltage

Tovershoot + Tundershoot < 20% of Tperiod

Figure 7-1. IO Transient Voltage Ranges

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AM6442, AM6441, AM6421, AM6412, AM6411

SPRSP56D – JANUARY 2021 – REVISED JULY 2022

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