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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)
MagINCn
MagDECn
A_LSB_U
B_Dir_V
NC
Index_W
VSS
Prog
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD5V
VDD3V3
NC
NC
PWM_LSB
CSn
CLK
DO
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
MagINCn
MagDECn
A_LSB_U
B_Dir_V
NC
Index_ W
VSS
Prog
DO
CLK
CSn
Pin Number
1
2
3
4
5
6
7
8
9
10
11
Description
Magnet Field Magnitude Increase. Active low. Indicates a distance reduction between the
magnet and the device surface.
Magnet Field Magnitude Decrease. Active low. Indicates a distance increase between the
device and the magnet.
Mode1.x: Quadrature A channel
Mode2.x: Least Significant Bit
Mode3.x: U signal (phase1)
Mode1.x: Quadrature B channel quarter period shift to channel A
Mode2.x: Direction of Rotation
Mode3.x: V signal (phase2)
For internal use. Must be left unconnected.
Mode1.x and Mode2.x: Index signal indicates the absolute zero position
Mode3.x: W signal (phase3)
Negative Supply Voltage (GND).
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.
Data Output of Synchronous Serial Interface.
SSI Clock Input. Schmitt-Trigger input.
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)
www.austriamicrosystems.com/AS5140H
Revision 1.4
4 - 37
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