MMC3316XMT Datasheet, PDF(4/13 Page) List of Unclassifed Manufacturers – The MMC3316xMT is a complete 3-axis magnetic sensor with on-chip signal processing and integrated I2C bus.

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MMC3316XMT Datasheet, PDF (4/13 Pages) List of Unclassifed Manufacturers – The MMC3316xMT is a complete 3-axis magnetic sensor with on-chip signal processing and integrated I2C bus.

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ABSOLUTE MAXIMUM RATINGS*

Supply Voltage (VDD) â¦â¦â¦â¦â¦â¦...-0.5 to +3.6V

Storage Temperature â¦â¦â¦.â¦â¦-55ï°C to +125ï°C

Maximum Exposed Field â¦â¦â¦â¦â¦â¦..10000 gauss

*Stresses above those listed under Absolute Maximum Ratings may cause

permanent damage to the device. This is a stress rating only; the functional

operation of the device at these or any other conditions above those indicated

in the operational sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect the

deviceâs reliability.

Pin Description: LGA Package

Pin Name Description

I/O

1 VDA Power Supply

P

2

Vpp Factory Use Only, Leave Open NC

3 TEST Factory Use Only, Leave NC

Open/No Connection

4

C+ Short together

I

5

C-

I

6 CAP Connect to External Capacitor I

7

SCL Serial Clock Line for I2C bus

I

8 VDD Power Supply for I2C bus

P

9 SDA Serial Data Line for I2C bus

I/O

10 VSA Connect to Ground

P

All parts are shipped in tape and reel packaging with

9000pcs per 13â reel or 3000pcs per 7â reel.

Caution: ESD (electrostatic discharge) sensitive

device.

Ordering Guide:

MMC3316xMT

Package type:

Code

T

Type

LGA10

RoHS compliant

Performance Grade:

Code

Performance Grade

M

Temp compensated

Address code: 0~7

Code 7bit I2C Address

0

0110000b

1

0110001b

2

0110010b

3

0110011b

4

0110100b

5

0110101b

6

0110110b

7

0110111b

Marking illustration:

1 10

2

9

3

502XXX

+

8

45

7

6

+

+

Number

5x

50

51

52

53

54

55

56

57

Part number

MMC33160MT

MMC33161MT

MMC33162MT

MMC33163MT

MMC33164MT

MMC33165MT

MMC33166MT

MMC33167MT

âNumberâ means the 1st two digits of the 1st line in the

marking. The 3rd digit in the 1st line represents Year Code

ï¼2 stands for 2012ï¼, the 2nd line represents Lot Number.

Small circle indicates pin one (1).

THEORY:

The anisotropic magnetoresistive (AMR) sensors are

special resistors made of permalloy thin film deposited

on a silicon wafer. During manufacturing, a strong

magnetic field is applied to the film to orient its

magnetic domains in the same direction, establishing

a magnetization vector. Subsequently, an external

magnetic field applied perpendicularly to the sides of

the film causes the magnetization to rotate and

change angle. This in turn causes the filmâs resistance

to vary. The MEMSIC AMR sensor is incorporated into

a Wheatstone bridge, so that the change in resistance

is detected as a change in differential voltage and the

strength of the applied magnetic field may be inferred.

However, the influence of a strong magnetic field

(more than 25 gausses) in any direction could upset,

or flip, the polarity of the film, thus changing the sensor

characteristics. A strong restoring magnetic field must

be applied momentally to restore, or set, the sensor

characteristics. The MEMSIC magnetic sensor has an

on-chip magnetically coupled strap: a SET/RESET

strap pulsed with a high current, to provide the

restoring magnetic field.

MEMSIC MMC3316xMT Rev.A

Page 4 of 13

8/10/2012

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