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AS5140H

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

4 Pin Assignments

Figure 2. Pin Assignments (Top View)

4.1 Pin Descriptions

The following table shows the description of each pin of the standard SSOP16 package (Shrink Small Outline Package, 16 leads, body size:

5.3mm x 6.2mmm; See Figure 2).

Table 1. Pin Descriptions

Pin Name

Pin Number

Description

MagINCn

1

Magnet Field Magnitude Increase. Active low. Indicates a distance reduction between the

magnet and the device surface.

MagDECn

2

Magnet Field Magnitude Decrease. Active low. Indicates a distance increase between the

device and the magnet.

A_LSB_U

3

Mode1.x: Quadrature A channel

Mode2.x: Least Significant Bit

Mode3.x: U signal (phase1)

B_Dir_V

4

Mode1.x: Quadrature B channel quarter period shift to channel A

Mode2.x: Direction of Rotation

Mode3.x: V signal (phase2)

NC

5

For internal use. Must be left unconnected.

Index_ W

6

Mode1.x and Mode2.x: Index signal indicates the absolute zero position

Mode3.x: W signal (phase3)

VSS

7

Negative Supply Voltage (GND).

Prog

8

OTP Programming Input and Data Input for Daisy Chain mode. Internal pull-down

resistor (~74k

Ω). May be connected to VSS if programming is not used.

DO

9

Data Output of Synchronous Serial Interface.

CLK

10

SSI Clock Input. Schmitt-Trigger input.

CSn

11

Chip Select. Active low; Schmitt-Trigger input, internal pull-up resistor (~50k

Ω) connect to

VSS in incremental mode (see Incremental Power-up Lock Option on page 16)

1

2

3

4

5

6

7

8

12

16

15

14

13

MagDECn

Prog

VSS

MagINCn

A_LSB_U

B_Dir_V

NC

Index_W

VDD3V3

VDD5V

NC

CSn

DO

CLK

11

10

9

NC

PWM_LSB