AS5245HQFT datasheet(4/31 Pages) AMSCO

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AS5245

Data Sheet - P i n A s s i g n m e n t s

4.1 Pin Descriptions

Table 1. Pin Descriptions

Pin Name

Pin Number

Pin Type

Description

DTest1_A

1, 32

Digital output

Test output in default mode

DTest2_B

2, 3

Digital output

Test output in default mode

4, 5

For internal use. Must be left unconnected

Mode_Index

6, 7

Digital I/O pull-down

Select between slow (open, low: VSS) and fast (high) mode. Internal pull-

down resistor. Hard wired connection to VDD or GND recommended.

VSS

8, 9

Supply pin

Negative Supply Voltage (GND)

PDIO

10, 11

Digital input pull-down

OTP Programming Input and Data Input for Daisy Chain mode.

Internal pull-down resistor (74k

Ω). Should be connected to VSS if

programming is not used.

CLK

12, 13

Digital input, Schmitt-

trigger input

Clock Input of Synchronous Serial Interface; Schmitt-Trigger input

14, 15

Digital output / tri-

state

Data Output of Synchronous Serial Interface

CSn

16, 17

Digital input pull-up,

Schmitt-trigger input

Chip Select. Active low. Schmitt-Trigger input, internal pull-up resistor

(50k

Ω)

PWM

18, 19

Digital output

Pulse Width Modulation

20, 21

For internal use. Must be left unconnected

22, 23

For internal use. Must be left unconnected

VDD3V3

24, 25

Supply pin

3V-Regulator Output for internal core, regulated from VDD5V. Connect to

VDD5V for 3V supply voltage. Do not load externally.

VDD5V

26, 27

Supply pin

Positive Supply Voltage, 3.0V to 5.5V

MagINCn

28, 29

Digital output open

drain

Magnet Field Magnitude Increase. Active low. Indicates a distance

reduction between the magnet and the device surface.

MagDECn

30, 31

Digital output open

drain

Magnet Field Magnitude Decrease. Active low. Indicates a distance

increase between the device and the magnet.

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