ST72325AR7-Auto datasheet(25/243 Pages) STMICROELECTRONICS

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ST72325xxx-Auto

Package pinout and pin description

Doc ID 13770 Rev 3

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30 PC7/SS/AIN15

I/O CT

Port C7

SPI Slave

Select

(active low)

ADC

analog

Input 15

-(1) PA0

I/O CT

ei0

Port A0

-(1) PA1

I/O CT

ei0

Port A1

-(1) PA2

I/O CT

ei0

Port A2

31 PA3 (HS)

I/O CT HS

ei0

Port A3

32 VDD_1

(2)

Digital Main Supply Voltage

33 VSS_1

(2)

Digital Ground Voltage

34 PA4 (HS)

I/O CT HS

Port A4

35 PA5 (HS)

I/O CT HS

Port A5

36 PA6 (HS)/SDAI

I/O CT HS

Port A6

I2C Data

37 PA7 (HS)/SCLI

I/O CT HS

Port A7

I2C Clock

38 VPP/ ICCSEL

Must be tied low. In Flash

programming mode, this pin acts as

the programming voltage input VPP.

See Section 19.9.2 for more details.

39 RESET

I/O CT

Top priority non maskable interrupt.

EVD

External voltage detector

TLI

Top level interrupt input pin

40 VSS_2

(2)

Digital Ground Voltage

41 OSC2(3)

I/O

Resonator oscillator inverter output

42 OSC1(3)

External clock input or Resonator

oscillator inverter input

43 VDD_2

(2)

Digital Main Supply Voltage

44 PE0/TDO

I/O CT

Port E0

SCI Transmit Data Out

PE1/RDI

I/O CT

Port E1

SCI Receive Data In

-(1) PE2

I/O CT

XX(4) X(4) Port E2

-(1) PE3

I/O CT

Port E3

On the chip, each I/O port may have up to eight pads. Pads that are not bonded to external pins are in input pull-up

configuration after reset. The configuration of these pads must be kept at reset state to avoid added current consumption.

It is mandatory to connect all available VDD and VAREF pins to the supply voltage and all VSS and VSSA pins to ground.

OSC1 and OSC2 pins connect a crystal/ceramic resonator, or an external source to the on-chip oscillator; see Section 1:

Description and Section 19.5: Clock and timing characteristicsfor more details.

Pull-up always activated on PE2 (see Section 22.1.8: Pull-up always active on PE2).

Table 3.

Device pin descriptions (LQFP64 and LQFP44) (continued)

Level

Port

Main

function

(after

reset)

Alternate function

No.

Name

Input

Output

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