L3GD20H datasheet(9/52 Pages) STMICROELECTRONICS

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L3GD20H

Block diagram and pin description

Table 2. Pin description

Pin#

Name

Function

Vdd_IO

(1)

Recommended 100 nF filter capacitor.

Power supply for I/O pins

SCL

SPC

C serial clock (SCL)

SPI serial port clock (SPC)

SDA

SDI

SDO

C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output (SDO)

SDO

SA0

SPI serial data output (SDO)

C less significant bit of the device address (SA0)

5CS

C/SPI mode selection (1: SPI idle mode / I

C communication

enabled; 0: SPI communication mode / I2C disabled)

DRDY/INT2

Data ready/fifo interrupt (FIFO threshold/overrun/empty)

INT1

Programmable interrupt

8DEN

(2)

Connected to GND if DEN is not used.

Gyroscope data enable

Reserved

Connect to GND

Reserved

Connect to GND

Reserved

Connect to GND or VDD

GND

0 V supply

GND

0 V supply

Cap

Connect to GND with ceramic capacitor

(3)

10 nF (+/-10%), 25 V. 1 nF minimum value has to be guaranteed under 12 V bias condition.

Reserved

Connect to GND or VDD

Vdd

(4)

Recommended 100 nF plus 10

μF capacitors.

Power supply

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