MB89663 datasheet(7/48 Pages) FUJITSU

7 / 48 page

MB89660 Series

s PIN DESCRIPTION

(Continued)

*1: DIP-64P-M01, DIP-64C-A06

*2: FPT-64P-M06

Pin no.

Pin name

Circuit

type

Function

DIP*1

QFP*2

Crystal oscillator pins

MOD0

Operating mode selection pins

Connect directly to VCC or VSS.

A pull-down resistor is selectable as an option for mask

ROM products.

MOD1

RST

Reset I/O pin

This port is an N-ch open-drain output type with pull-up

resistor and a hysteresis input type. “L” is output from this

pin by an internal reset source. The internal circuit is

initialized by the input of “L”.

HST

Hardware standby input pin

Connect directly to VCC when hardware standby is not

used.

56 to 49

49 to 42

P00 to P07

General-purpose I/O ports

48 to 41

41 to 34

P10 to P17

40 to 33

33 to 26

P20 to P27

General-purpose output ports

P30/EC

General-purpose I/O port

Also serves as an external clock input for an 8/16-bit

timer/counter.

This pin is a hysteresis input type and with a noise

canceller.

P31/TO1

General-purpose high-current I/O port

Also serves as an 8/16-bit timer/counter output. This pin

is a hysteresis input type and with a noise canceller.

P32/TO2

General-purpose I/O port

Also serves as an 8/16-bit timer/counter output. This pin

is a hysteresis input type and with a noise canceller.

P33/RTI0

General-purpose I/O ports

Also serve as the data input for the input capture. This pin

is a hysteresis input type and with a noise canceller.

P34/RTI1

P35/RTO0

General-purpose I/O ports

Also serve as the data output for the output compare. This

pin is a hysteresis input type and with a noise canceller.

158

P36/RTO1

P37/ADST

General-purpose heavy-current I/O port

Also serves as the external activation input for the A/D

converter. This pin is a hysteresis input type and with a

noise canceller.

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