51.1 Absolute Maximum Electrical Characteristics

Absolute maximum ratings for are listed below. Exposure to these maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at these or any other conditions, above the parameters indicated in the operation listings of this specification, is not implied.

Table 51-1. MCU Absolute Maximum Electrical Characteristics
Ambient temperature under bias	-40°C to +85°C
Storage temperature	-65°C to +150°C
Voltage on VDD / VDDIO / VDDREG with respect to VSS	-0.3V to +4.0V
Voltage on any pin that is not 5V tolerant, with respect to VSS ^{(3, 4)}	-0.4V to (VDDIO+0.4V)
Voltage on any 5V tolerant pin with respect to VSS when VDDIO ≥ 1.9V ^{(3, 4)}	-0.4V to 5.5V
Voltage on any 5V tolerant pin with respect to VSS when VDDIO < 1.9V ^{(3, 4)}	-0.4V to (VDDIO+0.4V)
Voltage on USBHS PHY D+ or D- pin with respect to VSS	-0.4V to 5.3V
Voltage on USBHS PHY VBUS with respect to VSS	-0.3V to +5.25V
Voltage on USBFS D+ or D- pin with respect to VSS	-0.4V to (VDDIO+0.4V)
Voltage on VREFx with respect to VSS	-0.4V to (AVDD+0.4V)
Maximum current out of VSS pin(s)	190 mA
Maximum current into VDDIOx pin(s) ⁽²⁾	190 mA
Maximum DC output current sourced/sunk by any Low-Current Mode I/O pin (4x Drive Strength) ^{(5, 6)}	38 mA
Maximum DC output current sourced/sunk by any High-Current Mode I/O pin (8x Drive Strength) ^{(5, 6)}	64 mA
Maximum DC current sourced/sunk by any port cluster ⁽⁷⁾ .	190 mA
Maximum Junction Temperature	+105°C
ESD qualification:
Human Body Model (HBM) per JESD22-A114	±4000 V
Charged Device Model (CDM) (ANSI/ESD STM 5.3.1)	±1000 V
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions, above those indicated in the operation listings of this specification, is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Maximum allowable current is a function of device maximum power dissipation. See Package and Pinout for the 5V tolerant pins. When applying higher or lower voltage than those specified on IO pins, please refer to DI_19 / DI_21 to respect the maximum injection current specification. See the I/O Drive Strength table for the I/O pin Drive Strength. This maximum value is specific to continuous DC current. For IO pin AC current characteristics, refer to the I/O Pin Electrical Specifications. A cluster is a group of GPIO’s bounded by power/ground pins. Refer to the following table I/O Clusters.

Table 51-2. I/O Clusters
I/O Cluster	Port Pads
1	PA00, PA01, PA02, PA03
2	PA20, PA21, PA22, PA23, PA13, PA14, PA15, PA16, PA17, PA24
3	PA25, PA26, PA27, PA04, PA05, PA06, PA07, PA08, PA18, PA28
4	PA19, PA09, PA10, PA11, PA12, PB00, PB01, PB11, PB12, PB18, PB19, PB20, PB02, PB03
5	PB04, PB05, PB13, PB06, PB14, PB15
6	PB21, PB22, PB23, PB24, PB25, PB26, PB16
7	PB17, PB07, PB08, PB09, PB10, PC00, PC01, PC02, PC03, PC04
8	PC21, PC22, PC14, PC23, PC05, PC06, PC07, PC24, PC25
9	PC26, PC27, PC09, PC15, PC28, PC29, PC16, PC17, PC18, PC10
10	PC11, PC12, PC13, PC19, PC20
11	PD00, PD01, PD02, PD13, PD14, PD15, PD16
12	PD17, PD18, PD19, PD20, PD21
13	PD12, PD05, PD06, PD07, PD08, PD09, PD10, PD11