ST7285C datasheet(8/117 Pages) STMICROELECTRONICS

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ST7285C

PF0

I/O Port PF0

Software selectable as triggered input, a push

pull output, open drain output, or triggered in-

terrupt 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 Buff-

ers.

This pin is connected to pin 1.

VDDP

Power Supply for Out-

put 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 in-

terrupt 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/

RDSCLKOUT

I/O Port PH1

RDS GBS Clock Out

signal

PH2/

RDSDATA

I/O Port PH2

RDS GBS Data signal

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 signal

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

PA0/AIN0

I/O Port PA0

Analog input to ADC

Alternate function or I/O. The I/O configuration

is software selectable as triggered input or

push pull output. Note that when a pin is used

as Analog input it must not be configured as an

output to avoid conflicts with the analog volt-

age to be measured.

PA1/AIN1

I/O Port PA1

PA2/AIN2

I/O Port PA2

PA3/AIN3

I/O Port PA3

PA4/AIN4

I/O Port PA4

PA5/AIN5

I/O Port PA5

PA6/AIN6

I/O Port PA6

PA7/AIN7

I/O Port PA7

Pin Name(s)

Basic Function

Alternate Fun ction

Remarks

ST7285C Datenblatt(PDF) 8 Page - STMicroelectronics

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