38K2 datasheet(112/151 Pages) RENESAS

112 / 151 page

38K2 Group

Rev.3.00

Oct 15, 2006

page 112 of 147

REJ03B0193-0300

Table 12 Description of pin function (Standard Serial I/O Mode)

Pin name

Signal name

I/O

VCC,VSS

Power supply

VCCE

Power supply

CNVSS

VPP

CNVSS2

CNVSS2I

VREF

Analog reference voltage

DVCC, PVCC

Analog power supply

PVSS

Analog power supply

RESET

Reset input

XIN

Clock input

XOUT

Clock output

USBVREF

USB reference voltage input

TrON

USB reference voltage output

D0+,D0-

USB upstream input

I/O

D1+,D1-

USB downstream input

I/O

D2+,D2-

USB downstream input

I/O

P00 to P07

Input port P0

P10 to P15

Input port P1

P16

Input port P1

P17

Input port P1

P20 to P24

Input port P2

P30 to P37

Input port P3

P40

RxD input

P41

TxD output

P42

SCLK input

P43

BUSY output

P50 to P57

Input port P5

P60 to P63

Input port P6

Function

Apply 3.00 to 5.25 V (L version) to the Vcc pin and 0 V to the Vss pin.

Connect this pin to Vcc.

Connect this pin to VPP (VPP = 4.50 to 5.25 V).

Connect this pin to Vss.

Connect this pin to Vcc when not using.

Connect this pin to Vcc.

Connect this pin to Vss.

To reset, input “L” level for 20 cycles or longer clocks of

φ.

Connect a ceramic or crystal resonator between the XIN and XOUT pins. When

entering an externally drived clock, enter it from XIN and leave XOUT open.

Connect this pin to Vcc when not using.

Leave this pin open when not using.

Input “L” level when not using.

Input “L” or “H” level, or keep open.

Input “L” or “H” level, or keep open.Input “H” level only at release of reset.

Input “L” or “H” level, or keep open.

This is a serial data input pin.

This is a serial data output pin.

This is a serial clock input pin.Input “H” level only at release of reset.

This is a BUSY output pin.

Input “L” or “H” level, or keep open.

38K2 Datasheet(PDF) 112 Page - Renesas Technology Corp

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