MB91F585ASH datasheet(126/176 Pages) CYPRESS

126 / 176 page

Document Number: 002-04665 Rev *A

Page 125 of 175

MB91580M/S Series

*9:

• Corresponding pins: General-purpose ports

• Use the devices within recommended operating conditions.

• Use the devices with direct voltage (current).

• The + B signal should always be applied by connecting a limiting resistor between the + B signal and the

microcontroller.

• The value of the limiting resistor should be set so that the current input to the microcontroller pin does not

exceed rated values at any time regardless of instantaneously or constantly when the + B signal is input.

• Note that when the microcontroller drive current is low, such as in the low-power consumption modes, the + B

input potential can increase the potential at the Vcc pin via a protective diode, possibly affecting other devices.

• Note that if the + B signal is input when the microcontroller is off (not fixed at 0 V), since the power is supplied

through the pin, the microcontroller may operate incompletely.

• Note that if the +B signal is input at power-on, since the power is supplied through the pin, the power-on reset

may not function in the power supply voltage.

• Do not leave + B input pins open.

Sample recommended circuit

MB91580M/S series

+B input (12 to 16V)

Protective diode

Limiting resistor

current

*10: To use this product at TA=125°C, equip this on a multilayer board with four or more layers.

To equip this on a single-layer board, change the operating conditions (operating frequency, power supply voltage,

etc) to use this at the power consumption PD=415mW or lower, or use this at TA=105°C or lower.

*11: When it is used exceeding TA=125°C, contact your sales representative.

WARNING

Semiconductor devices may be permanently damaged by application of stress (including, without limitation, voltage,

current or temperature) in excess of absolute maximum ratings. Do not exceed any of these ratings.

MB91F585ASH 데이터시트(PDF) 126 Page - Cypress Semiconductor