STA8089FGA datasheet(9/33 Pages) STMICROELECTRONICS

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STA8089FGA

Pin description

2.4

Main function pins

2.5

Test/emulated dedicated pins

VDDIO_R1 1.8 V or 3.3 V PWR Digital supply voltage for I/O ring 1 (1.8 V or 3.3 V)

VDDIO_R2

3.3 V

PWR Digital supply voltage for I/O ring 2 (3.3 V)

VINB

1.6 V - 4.3 V

PWR Backup LDO input supply voltage (1.6 V to 4.3 V)

VINL1

1.8 V

PWR LDO1 and ADC input supply voltage

VINL2

1.6 V - 4.3 V

PWR LDO2 input supply voltage (1.6 V to 4.3 V)

VOB

1.0 V

PWR LDO backup output voltage (1.0 V)

VOL1

1.2 V

PWR LDO1 output voltage (1.2 V)

VOL2

1.2 V

PWR LDO2 output voltage (1.2 V)

GND

GND Ground

GND_LNA

GND

GND Ground

Table 1. Power supply pins (continued)

Symbol

I/O voltage

I/O

Description

STA8089FGA

Table 2. Main function pins

Symbol

I/O voltage

I/O

Description

STA8089FGA

ADC_IN1

1.4 V – 0 V typ range

ADC Analog input [1]

ADC_IN2

1.4 V – 0 V typ range

ADC Analog input [2]

RSTn

1.0 V

Reset Input with Schmitt-Trigger characteristics and

noise filter.

RTC_XTI

1.0 V (max)

Input of the 32 KHz oscillator amplifier circuit and

input of the internal real time clock circuit.

RTC_XTO

1.0 V (max)

Output of the oscillator amplifier circuit.

STDBY_OUT

1.0 V

When low, indicates the chip is in Standby mode

STDBYn

1.0 V

When low, the chip is forced in Standby Mode - All

pins in high impedance except the ones powered by

Backup supply

WAKEUP

1.0 V

WAKEUP from STANDBY mode

Table 3. Test/emulated dedicated pins

Symbol

I/O voltage

I/O

Description

STA8089FGA

TCK

VDDIO_R2

JTAG Test Clock

TDI

VDDIO_R2

JTAG Test Data In

TDO

VDDIO_R2

JTAG Test Data Out

TMS

VDDIO_R2

JTAG Test Mode Select

STA8089FGA Datasheet(PDF) 9 Page - STMicroelectronics

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