KS88C4404 datasheet(7/36 Pages) SAMSUNG

No. de pieza	KS88C4404

Descripción Electrónicos	new SAM8 family of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range of integrated peripherals, and various mask-p

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Fabricante Electrónico	SAMSUNG [Samsung semiconductor]

Página de inicio	http://www.samsung.com/Products/Semiconductor

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KS88C4404 MICROCONTROLLER

PRODUCT OVERVIEW

1–7

PIN DESCRIPTIONS

Table 1–1. KS88C4404 Pin Descriptions

Name

Type

Description

Circuit

Type

QFP Pin

Number

Share

Pins

P0.0 - P0.7

I/O

Nibble programmable port; input or output mode

selected by software; Schmitt trigger input or push-

pull, open-drain output with software assignable

pull-ups; alternately configurable as external

interface address lines A8 - A15.

3

2, 1,

80-75

A8 - A15

P1.0 - P1.7

I/O

Same general characteristics as port 0; alternately

configurable as external interface address/data lines

AD0 - AD7.

3

73-66

AD0 - AD7

P2.0 - P2.7

I/O

General I/O port with Schmitt trigger input or push-

pull output. bit programmable;

P2.0 / Address Strobe (AS)

P2.1 / Data Strobe (DS)

P2.2 / Memory Write (MW)

P2.3 / Data Memory select (DM)

P2.4 / Memory Read (MR)

P2.5 / Program Memory select (PM)

P2.6 / timer A output (TA)

P2.7 / timer B output (TB)

5

19 - 12

AS, DS, MW,

DM, MR,

PM

, TA, TB

P3.0 - P3.7

I/O

General I/O port with bit programmable pins.

Schmitt trigger input or push-pull output with

software assignable pull-ups. Input or output mode

is selectable by software. P3.0 - P3.3 are alternately

used as inputs for external interrupts INT0-INT3,

respectively (with noise filters and interrupt control):

P3.0 / timer C clock input (TCCK) / INT0

P3.1 / timer D clock input (TDCK) / INT1

P3.2 / timer C gate input (TCG) / INT2

P3.3 / timer D gate input (TDG) / INT3

P3.6 / Capture data input (CAP)

P3.7 /

for slow memory interface

4

24-31

(See pin

description)

P4.0 - P4.7

I/O

General I/O port with bit programmable pins.

Schmitt trigger input or push-pull, open-drain output

with software assignable pull-ups. Input or output

mode is selectable by software. P4.0-P4.7 can

alternately be used as inputs for external interrupts

INT4-INT11, respectively (with noise filters and

interrupt control)

4

33-40

INT4 -

INT11

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