MB95F118MS datasheet(15/64 Pages) FUJITSU

15 / 64 page

MB95110M Series

■ PIN CONNECTION

• Treatment of Unused Pin

Leaving unused input pins unconnected can cause abnormal operation or latch-up, leaving to permanent damage.

Unused input pins should always be pulled up or down through resistance of at least 2 k

Ω. Any unused input/

output pins may be set to output mode and left open, or set to input mode and treated the same as unused input

pins. If there is unused output pin, make it open.

• Treatment of Power Supply Pins on A/D Converter

Connect to be AVCC

= VCC and AVSS = VSS even if the A/D converter is not in use.

Noise riding on the AVCC pin may cause accuracy degradation. So, connect approx. 0.1

µF ceramic capacitor

as a bypass capacitor between AVCC and AVSS pins in the vicinity of this device.

• Power Supply Pins

In products with multiple VCC or VSS pins, the pins of the same potential are internally connected in the device

to avoid abnormal operations including latch-up. However, you must connect the pins to external power supply

and a ground line to lower the electro-magnetic emission level, to prevent abnormal operation of strobe signals

caused by the rise in the ground level, and to conform to the total output current rating.

Moreover, connect the current supply source with the VCC and VSS pins of this device at the low impedance.

It is also advisable to connect a ceramic bypass capacitor of approximately 0.1

µF between VCC and VSS pins

near this device.

• Mode Pin (MOD)

Connect the mode pin directly to VCC or VSS pins.

To prevent the device unintentionally entering test mode due to noise, lay out the printed circuit board so as to

minimize the distance from the mode pins to VCC or VSS pins and to provide a low-impedance connection.

Use a ceramic capacitor or a capacitor with equivalent frequency characteristics. A bypass capacitor of VCC pin

must have a capacitance value higher than CS. For connection of smoothing capacitor CS, refer to the diagram

below.

• NC Pins

Any pins marked “NC” (not connected) must be left open.

• Analog Power Supply

Always set the same potential to AVCC and VCC. When VCC > AVCC, the current may flow through the AN00 to

AN07 pins.

• C pin connection diagram

MB95F118MS Scheda tecnica(PDF) 15 Page - fujitsu semiconductor