SH7201 datasheet(39/1196 Pages) RENESAS

39 / 1196 page

Section 1 Overview

Rev. 2.00 Sep. 07, 2007 Page 11 of 1164

REJ09B0321-0200

1.5

Pin Functions

Table 1.3 lists the pin functions.

Table 1.3

Pin Functions

Classification

Symbol

I/O

Name

Function

VCCR

Power supply for

internal step-

down circuit

Power supply pin for the internal

step-down circuit. This pin must be

connected to the system power

supply. This LSI does not operate

correctly if this pin is left open.

VSSR

Ground for

internal step-

down circuit

Ground pin for the internal step-

down circuit. This pin must be

connected to the system power

supply (0 V). This LSI does not

operate correctly if this pin is left

open.

VCL

Capacitor

connected pin for

internal step-

down circuit

Pin for connecting an external

capacitor for the internal step-down

circuit. This pin should be connected

to the VSS via the external capacitor

(place closer to this pin).

VSS

Ground for

internal step-

down circuit

Ground pin for the internal step-

down circuit used for stabilize

internal step-down power supply.

This pin should be connected to the

VCL via the external capacitor (place

closer to this pin)

PVCC

Power supply for

I/O circuits

Power supply pins for I/O pins. All

the PVCC pins must be connected to

the system power supply. This LSI

does not operate correctly if there is

a pin left open.

Power supply

PVSS

Ground for I/O

circuits

Ground pins for I/O pins. All the

PVSS pins must be connected to the

system power supply (0 V). This LSI

does not operate correctly if there is

a pin left open.

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