EM78P372KSS20 datasheet(8/118 Pages) EMC

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Contents

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Product Specification (V1.4) 05.11.2016

User Application Note

(Before using this IC, take a look at the following description note, it includes important messages.)

We strongly recommend that users have to individually place an external pull-down or pull-high

resistor (0Ω/1kΩ/10kΩ/100kΩ) on P51 and P50 respectively, no matter what the pin function is.

The purpose of this is to prevent P51 or P50 from floating.

The value in the dead-time register must be less than the value in the duty cycle register, in order

to prevent unexpected behavior on both of the PWM outputs.

The PWM output will not be set, if the duty cycle is “0”.

The internal TCC will stop running when in sleep mode. However, during AD conversion, when

TCC is set to “SLEP” instruction, if the ADWE bit of the RE register is enabled, the TCC will keep

on running.

During ADC conversion, do not perform output instruction to maintain precision for all of the pins.

In order to obtain accurate values, it is necessary to avoid any data transition on the I/O pins

during AD conversion.

When using operational amplifier:

(1)

The CMPIE (IOCE0.4), CMPWE (RE.2), and CMPIF (RE.4) bits are invalid.

(2)

The comparator interrupt is invalid.

(3)

The comparator wake-up is invalid.

The noise rejection function is turned off in the LXT2 and sleep mode.

The Low Voltage Reset (LVR) is designed for unstable power situation. If the EM78P372K is

targeted to operate at 8 MHz, the working voltage should be avoided to drop below 2.5 V. The

LVR does not work in this case when the working voltage is between 2.5 V and POR level.

EM78P372KSS20 Datasheet(PDF) 8 Page - ELAN Microelectronics Corp