A3G4250D 데이터 시트보기 (PDF) - STMicroelectronics

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A3G4250D

MEMS motion sensor: 3-axis digital output gyroscope

STMicroelectronics 

Block diagram and pin description

A3G4250D

Table 2. Pin description

Pin#

Name

Function

1

Vdd_IO Power supply for I/O pins

SCL

I2C serial clock (SCL)

2

SPC

SPI serial port clock (SPC)

SDA

I2C serial data (SDA)

3

SDI

SPI serial data input (SDI)

SDO

3-wire interface serial data output (SDO)

SDO

SPI serial data output (SDO)

4

SA0

I2C least significant bit of the device address (SA0)

SPI enable

5

CS

I2C/SPI mode selection (1: SPI idle mode / I2C communication

enabled; 0: SPI communication mode / I2C disabled)

6

DRDY/INT2 Data ready/FIFO interrupt

7

INT1

Programmable interrupt

8

Reserved Connect to GND

9

Reserved Connect to GND

10

Reserved Connect to GND

11

Reserved Connect to GND

12

Reserved Connect to GND

13

GND

0 V supply

14

PLLFILT Phase-locked loop filter (see Figure 3)

15

Reserved Connect to Vdd

16

Vdd

Power supply

Figure 3.

A3G4250D external low-pass filter values(a)

#APACITORFOR

,OWPASSFILTER

TOPIN

#

#

2

'.$

!-V

8/44

a. Pin 14 PLLFILT maximum voltage level is equal to Vdd.

Doc 022768 Rev 3

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