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PNI Sensor Corporation Doc #1018049 R03

SENtral Technical Data Sheet Page 9

3.2 Pin Assignments

SENtral’s pin-out is a 4x4 ball-grid array, as defined in Figure 7-1. The table below provides

the pin assignments.

Table 3-1: SENtral Pin Assignments

Pin#

Pin Name

I/O Type*

Description

PWR

Supply voltage

VCAP

PWR

External compensation capacitor for internal core

voltage regulator

GND

PWR

Ground

SA0

C slave address bit [0]

SCL

C host bus SCL clock line

SDA

C host bus SDA data line

SCL

C sensor bus SCL clock line

SDA

C sensor bus SDA data line

GPIO[0]

IO / PUPD

General Purpose IO – Default mag interrupt

GPIO[1]

IO / PUPD

General Purpose IO – Default accel interrupt

GPIO[2]

IO / PUPD

General Purpose IO – Default gyro interrupt

GPIO[3]

IO / PUPD

General Purpose IO – Default not connected

GPIO[4]

IO / PUPD

General Purpose IO – Default not connected

GPIO[5]

IO / PUPD

General Purpose IO – Default not connected

GPIO[6]

IO / PUPD

General Purpose IO – Default host interrupt

RES

Not Used – Connect to Ground

*I/O Types are:

PWR: Power supply Connections

I: Digital Input

IO: Digital Input / Output

PU: Pull-Up

PD: Pull-Down

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 53 54

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