ST7285C datasheet(101/117 Pages) STMICROELECTRONICS

101 / 117 page

101/117

ST72E85 ST72T85

PE0

I/O Port PE0

Software selectable as triggered input or push

pull output.

PE1

I/O Port PE1

PE2

I/O Port PE2

PE3

I/O Port PE3

PE4

I/O Port PE4

PE5

I/O Port PE5

PE6

I/O Port PE6

PE7

I/O Port PE7

PF0

I/O Port PF0

Software selectable as triggered input, a push

pull output, open drain output, or triggered inter-

rupt input with pull up (Interrupt I2).

PF1

I/O Port PF1

PF2

I/O Port PF2

PF3

I/O Port PF3

PF4

I/O Port PF4

Software selectable as a triggered input or as a

push pull output.

PF5

I/O Port PF5

PF6

I/O Port PF6

PF7

I/O Port PF7

VSSP

Ground for Output

Buffers.

This pin is connected to pin 1.

VDDP

Power Supply for

Output Buffers

This pin is connected to pin 2.

AINT

Reserved

Must be tied to 5V

ARS

Reserved

Must be tied to 5V

PG0

I/O Port PG0

Software selectable as triggered input or push

pull output.

PG1

I/O Port PG1

PG2

I/O Port PG2

PG3

I/O Port PG3

Software selectable as triggered input, a push

pull output, open drain output, or triggered inter-

rupt input with pull up (Interrupt I1).

PG4

I/O Port PG4

Software selectable as triggered input or push

pull output. Note that PH0, 1, 2 offer alternate

function capabilities for test purposes.

PG5

I/O Port PG5

PG6

I/O Port PG6

PG7

I/O Port PG7

PH0/

RDSQUAL

I/O Port PH0

RDS Quality signal

PH1/

RDSCLK-

OUT

I/O Port PH1

RDS GBS Clock Out

signal

PH2/

RDSDATA

I/O Port PH2

RDS GBS Data sig-

nal

PH3

I/O Port PH3

Software selectable as triggered input or high

voltage (10V max) open drain output.

PH4

I/O Port PH4

PH5

I/O Port PH5

RDSCOMP

RDS Comp Input sig-

nal

Used to feed the Demodulator from an external

filter when the internal filter is switched off.

RDSFIL

RDS Filtered Output

signal

Used for Demodulator test purposes.

RDSREF

RDS Input Reference

MPX

RDS input signal

VDDA

Analog Power Supply

For RDS and ADC circuits

VSSA

Analog Ground

Pin Name(s)

Basic Fun ction

Alternate Functi on

Remarks

ST7285C Datenblatt(PDF) 101 Page - STMicroelectronics

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