MB9B210T datasheet(65/137 Pages) SPANSION

65 / 137 page

D a t a S h e e t

MB9B210T-DS706-00015-3v0-E, February 10, 2015

CONFIDENTIAL

 C Pin

This series contains the regulator. Be sure to connect a smoothing capacitor (CS) for the regulator between

the C pin and the GND pin. Please use a ceramic capacitor or a capacitor of equivalent frequency

characteristics as a smoothing capacitor.

However, some laminated ceramic capacitors have the characteristics of capacitance variation due to

thermal fluctuation (F characteristics and Y5V characteristics). Please select the capacitor that meets the

specifications in the operating conditions to use by evaluating the temperature characteristics of a capacitor.

A smoothing capacitor of about 4.7μF would be recommended for this series.

 Mode pins (MD0)

Connect the MD pin (MD0) directly to VCC or VSS pins. Design the printed circuit board such that the

pull-up/down resistance stays low, as well as the distance between the mode pins and VCC pins or VSS pins

is as short as possible and the connection impedance is low, when the pins are pulled-up/down such as for

switching the pin level and rewriting the Flash memory data. It is because of preventing the device

erroneously switching to test mode due to noise.

 Notes on power-on

Turn power on/off in the following order or at the same time.

If not using the A/D converter, connect AVCC =VCC and AVSS = VSS.

Turning on: VCC → USBVCC0

VCC → USBVCC1

VCC → ETHVCC

VCC → AVCC → AVRH

Turning off: USBVCC0 → VCC

USBVCC1 → VCC

ETHVCC → VCC

AVRH → AVCC → VCC

Device

VSS

GND

MB9B210T Datasheet(PDF) 65 Page - SPANSION