MB90F474LPF datasheet(10/118 Pages) FUJITSU

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MB90470 Series

(Continued)

LQFP : FPT-100P-M05 package

QFP : FPT-100P-M06 package

Pin no.

Pin name

Circuit

type

Description

LQFP

QFP

P42

(CMOS/H)

General purpose input/output port.

A10

In non-multibus bus mode, this pin functions as an external

address pin.

SCK2

Single serial I/O clock input/output pin

P43, P44

(CMOS)

General purpose input/output ports.

A11, A12

In non-multibus bus mode, this pin functions as an external

address pin.

MT00, MT01

µPG input pins

P45

(CMOS/H)

General purpose input/output ports.

A13

In non-multibus bus mode, this pin functions as an external

address pin.

EXTC

µPG input pin

P46, P47

(CMOS)

General purpose input/output ports.

A14, A15

In non-multibus bus mode, this pin functions as an external

address pin.

OUT4/OUT5

Output compare event output pins

P50

(CMOS)

General purpose input/output port. In external bus mode, this

pin functions as the ALE pin

ALE

In external bus mode, this pin functions as the address load

enable signal (ALE) pin

P51

(CMOS)

General purpose input/output port. In external bus mode, this

pin functions as the RD pin.

In external bus mode, this pin functions as the read strobe

output (RD) pin.

P52

(CMOS)

General purpose input/output port. In external bus mode, this

pin functions as the WRL pin when the WRE bit in the EPCR

WRL

In external bus mode, this pin functions as the lower data write

strobe output (WRL) pin. When the WRE bit in the EPCR

input/output port.

P53

(CMOS)

General purpose input/output port. In external bus mode with

16-bit bus width, this pin functions as the WRH pin when the

WRE bit in the EPCR register is set to “1”.

WRH

In external bus mode with 16-bit bus width, this pin functions

as the higher data write strobe output (WRH) pin. When the

WRE bit in the EPCR register is set to “0”,this pin functions as

a general purpose input/output port.

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