ATSAMB11XR datasheet(45/87 Pages) MICROCHIP

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10.

Electrical Characteristics

There are voltage ranges where different VDDIO levels apply. This separation is for the IO drivers whose

drive strength is directly proportional to the IO supply voltage. In the ATSAMB11 products, there is a large

gap in the IO supply voltage range (2.3V to 3.6V). A guarantee on drive strength across this voltage

range would be intolerable to most vendors who only use a subsection of the IO supply range. As such,

these voltages are segmented into two manageable sections referenced as VDDIOM, and VDDIOH in

tables listed in this document..

10.1

Absolute Maximum Ratings

The values listed in this section are ratings that can be peaked by the device, but not sustained without

causing irreparable damage to the device.

Table 10-1. Absolute Maximum Ratings

Symbol

Characteristics

Min.

Max.

Unit

VDDIO

I/O Supply Voltage

-0.3

4.2

VBAT

Battery Supply Voltage

-0.3

5.0

VIN (1)

Digital Input Voltage

-0.3

VDDIO

VAIN(2)

Analog Input Voltage

-0.3

1.5

Storage Temperature

-65

150

°C

Note:

VIN corresponds to all the digital pins.

VAIN corresponds to all the analog pins, RFIO, XO_N, XO_P, TPP, RTC_CLK_N and RTC_CLK_P.

10.2

Recommended Operating Conditions

Table 10-2. Recommended Operating Conditions

Symbol

Characteristic

Min.

Typ.

Max.

Unit

VDDIOM

I/O Supply Voltage Mid-Range

2.3

2.50

3.00

VDDIOH

I/O Supply Voltage High Range

3.00

3.30

3.60

VBAT

Battery Supply Voltage (1)

2.3

3.6

4.3

Operating Temperature

-40

°C

Note:

VBAT must not be less than VDDIO.

10.3

DC Characteristics

The Table 10-3 provides the DC characteristics for the digital pads.

ATSAMB11XR/ZR

Datasheet Preliminary

DS70005342A-page 45

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