Sensors

2

Freescale Semiconductor, Inc.

MPL115A2

1

Block Diagram and Pin Descriptions

Figure 1. Block Diagram and Pin Connections

Table 1. Pin Description

Pin

Name

Function

1

VDD

VDD Power Supply Connection: VDD range is 2.375V to 5.5V.

2

CAP

1

μF connected to ground.

3

GND

Ground

4

SHDN

Shutdown: Connect to GND to disable the device. When in shutdown, the part draws no more than 1

μA supply

current and all communications pins (RST, SCL, SDA) are high impedance. Connect to VDD for normal

operation.

5

RST

6

NC

NC: No connection

7

1.

SDA: Serial data I/O line

8

Diff

Amp

Temp

Sensor

ADC

SCL

GND

VDD

SDA

Temperature

Pressure

Coefficient

Storage

ADDR

ADDR

ADDR

ADDR

ADDR

Interface

SHDN

RST

CAP

Diff

Amp

Temp

Sensor

ADC

SCL

GND

VDD

SDA

Temperature

Pressure

Coefficient

Storage

ADDR

ADDR

ADDR

ADDR

ADDR

ADDR

ADDR

ADDR

Interface

SHDN

RST

CAP

VDD

CAP

SHDN

SDA

RST

GND

SCL

μC

1

μF

1

μF

Microcontroller

4.7 k

4.7 k