SAB-80C535-N Просмотр технического описания (PDF) - Infineon Technologies

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SAB-80C535-N

8-Bit CMOS Single-Chip Microcontroller

Infineon Technologies 

SAB 80C515/80C535

Pin Definitions and Functions

Symbol Pin

Pin

Input (I) Function

P-LCC-68 P-MQFP-80 Output (O)

P4.0-P4.7 1-3, 5-9 72-74,

I/O

76-80

PE

4

75

I

RESET 10

1

I

V AREF

11

3

Port 4

is an 8-bit bidirectional I/O port with

internal pullup resistors. Port 4 pins that

have 1’s written to them are pulled high by

the internal pullup resistors, and in that

state can be used as inputs. As inputs,

port 4 pins being externally pulled low will

source current (II L, in the DC

characteristics) because of the internal

pullup resistors.

Power saving mode enable

A low level on this pin enables the use of

the power saving modes (idle mode and

power-down mode). When PE is held on

high level it is impossible to enter the

power saving modes.

Reset pin

A low level on this pin for the duration of

two machine cycles while the oscillator is

running resets the SAB 80C515. A small

internal pullup resistor permits power-on

reset using only a capacitor connected

to VSS.

Reference voltage for the A/D converter

VAGND

12

4

Reference ground for the A/D converter

P6.7-P6.0 13-20

5-12

Port 6

is an 8-bit undirectional input port. Port

pins can be used for digital input if voltage

levels simultaneously meet the

specifications for high/low input voltages

and for the eight multiplexed analog inputs

of the A/D converter.

Semiconductor Group

7

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