AS6221T

Absolute maximum ratings

Datasheet

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3.2

Pin description

Table 2: Pin description of AS6221T (WLCSP)

Pin number

Pin name

Pin type(1)

Description

A1

SDA

DIO_SOD

Serial interface data

A2

SCL

DI_S

Serial interface clock

B1

VDD

S

Positive supply voltage

B2

VSS

S

Ground pin

C1

ADD0

DI_S

Address select 0

C2

ALERT/ADD1

DIO_SOD

Alert output and address select 1

(1) Explanation of abbreviations:

S

Supply

DI_S

Digital Schmitt trigger input

DIO_SOD

Digital Schmitt trigger input / Open drain output

In Table 2, the pins of AS6221T are described. External pull up resistors (to VDD) are

necessary for the pins “SDA” and “SCL”.

The pin “ADD0” must not be left unconnected (refer to section 6.3.3 for further details).

The pin “ALERT/ADD1” is used to set the I²C address and has the additional functionality of

triggering an interrupt. In case this ALERT functionality is used, a pull up resistor (to VDD) is

necessary. If this functionality is not used it must be connected to VSS or SCL, depending on

the selected I²C address (refer to section 6.3.3 for further details). It must not be left

unconnected.

4

Absolute maximum ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. These are stress ratings only. Functional operation of the device at

these or any other conditions beyond those indicated under “Operating Conditions” is not

implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.