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AS8579

Pin Assignment

Datasheet

• PUBLIC

DS000707

• v4-01 • 2022-Jun-08

43

│ 7

3.2

Pin Description

Figure 4:

Pin Description of AS8579 (SSOP24 package)

Pin Number

Pin Name

Pin Type(1)

Description

1

SEN9

AIO 0 Ohm

Sensor Line 9

2

SEN8

AIO 0 Ohm

Sensor Line 8

3

SEN7

AIO 0 Ohm

Sensor Line 7

4

SEN6

AIO 0 Ohm

Sensor Line 6

5

SEN5

AIO 0 Ohm

Sensor Line 5

6

SEN4

AIO 0 Ohm

Sensor Line 4

7

SEN3

AIO 0 Ohm

Sensor Line 3

8

SEN2

AIO 0 Ohm

Sensor Line 2

9

SEN1

AIO 0 Ohm

Sensor Line 1

10

SEN0

AIO 0 Ohm

Sensor Line 0

11

VAR_SEN(2)

AIO 0 Ohm

Cable Shielding Driver

12

FIX_SEN(3)

AIO 0 Ohm

PCB Shielding Driver

13

CLK _E

DI_PD

System Clock

14

TEST

Factory Test Pin connect to

GND

15

CS

DI_PD

SPI Chip Select (active

high)

16

MOSI

DI_PD

SPI Data in

17

SCLK

DI_PD

SPI Clock

18

VDD

S

External 5 V Supply

19

VDD

S

External 5 V Supply

20

MISO

DO

SPI Data out

21

GND

S

Ground

22

GND

S

Ground

23

VREG

S

Internal 3.45 V Supply

24

VREG2

S

Connect to VREG

(1)

Explanation of abbreviations:

AIO 0Ohm Analog Input/Output

DI_PD

Digital Input with internal pull-down (see Electrical Characteristics)

DO

Digital Output

S

Supply

(2)

VAR_SEN optionally connected to cable shielding to avoid parasitic capacitance influences from the shielding

(3)

FIX_SEN

optionally connected to PCB shield layer to avoid parasitic capacitance influences from PCB shield layer