SH7101 datasheet(39/486 Pages) RENESAS

39 / 486 page

1. Overview

Rev.2.00 Sep. 27, 2007 Page 5 of 448

REJ09B0394-0200

1.4

Pin Functions

Table 1.1

Pin Functions

Type

Symbol

I/O

Name

Function

VCC

Input

Power supply

Power supply pins. Connect all these pins

to the system power supply. The chip does

not operate normally when some of these

pins are open.

VSS

Input

Ground

Ground pins. Connect all these pins to the

system power supply (0 V). The chip does

not operate normally when some of these

pins are open.

Power

Supply

VCL

Output

Power supply

for internal

power-down

External capacitance pins for internal

power-down power supply. Connect these

pins to VSS via a 0.47

μF (–10%/+100%)

capacitor (placed close to the pins).

Clock

PLLVCL

Output

Power supply

for PLL

External capacitance pin for internal

power-down power supply for an on-chip

PLL oscillator. Connect this pin to PLLVSS

via a 0.47

μF (–10%/+100%) capacitor

(placed close to the pin).

PLLVSS

Input

Ground for

PLL

On-chip PLL oscillator ground pin.

PLLCAP

Input

Capacitance

for PLL

External capacitance pin for an on-chip

PLL oscillator.

EXTAL

Input

External clock

For connection to a crystal resonator. (An

external clock can be supplied from the

EXTAL pin.) For examples of crystal

resonator connection and external clock

input, see section 4, Clock Pulse

Generator.

XTAL

Input

Crystal

For connection to a crystal resonator. For

examples of crystal resonator connection

and external clock input, see section 4,

Clock Pulse Generator.

Operating

mode control

MD3 to MD0

Input

Set the mode

Set the operating mode. Inputs at these

pins should not be changed during

operation.

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