MC3630 Datasheet, PDF (12/83 Pages) –

MC3630 3-Axis Accelerometer
Preliminary Datasheet
Typical Application Circuits
To Fast-Mode I2C
circuitry¹
(optional) To MCU
interrupt input²
Rp Rp
Rp
12 11
SCK_SCL NC
1 _{DOUT_A1}
2 _{DIN_SDA}
3 _VDDIO
4 _VPP
10
CSN
9
GND
8
NC
7
VDD
INTN NC
5
6
0.1µF
From power
supply
Place cap close
to VDD and
GND on PCB
NOTE¹: Rp are typically 4.7kΩ pullup resistors to VDDIO, per I2C specification. When
VDDIO is powered down, DIN_SDA and SCK_SCL will be driven low by internal
ESD diodes.
NOTE²: Attach typical 4.7kΩ pullup resistor if INTN is defined as open-drain.
Figure 4. Typical I2C Application Circuit
In typical applications, the interface power supply may contain significant noise from external
sources and other circuits which should be kept away from the device. Therefore, for some
applications a lower-noise power supply might be desirable to power the device.
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