MS5540C

Miniature Barometer Module

09/2015

Page 3

PIN CONFIGURATION

Fig. 2: Pin configuration of MS5540C

Pin Name

Pin

Type

Function

SCLK

1

I

Serial data clock

GND

2

G

Ground

PV (1)

3

N

Negative programming voltage

PEN (1)

4

I

Programming enable

VDD

5

P

Positive supply voltage

MCLK

6

I

Master clock (32.768 kHz)

DIN

7

I

Serial data input

DOUT

8

O

Serial data output

NOTE

1) Pin 3 (PV) and Pin 4 (PEN) are only used by the manufacturer for calibration purposes and should not be

connected.

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Conditions

Min

Max

Unit

Notes

Supply voltage

Ta = 25 °C

-0.3

4

V

Storage temperature

-40

+85

°C

1

Overpressure

P

Ta = 25 °C

10

bar

2

NOTES

1) Storage and operation in an environment of dry and non-corrosive gases.

2) The MS5540C is qualified referring to the ISO 2281 standard and can withstand an absolute pressure of 11 bar

in salt water or 100 m water respectively.