STA8090FG datasheet(11/41 Pages) STMICROELECTRONICS

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DS10719 Rev 6

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STA8090FG

Pin description

2.4

Main function pins

VINM

1.6 V - 4.3 V

PWR SMPS coil input supply (1.6 V to 4.3 V)

A1, A2

VDD_ANA

1.6 V - 4.3 V

PWR SMPS input supply (1.6 V to 4.3 V)

VLX

0 V - 4.3 V

PWR SMPS coil output

B1, B2

VOB

1.0V

PWR LDO backup output voltage (1.0 V)

VOL1

1.1 V or 1.8 V

PWR

LDO1 output voltage:

PMU_CFG = high -> 1.1 V (it can be also configured to

1.2 V)

PMU_CFG = low -> 1.8 V

VOL2

1.2 V

PWR LDO2 output voltage (1.2 V)

VOM

1.1 V or 1.8 V

PWR

SMPS output voltage

PMU_CFG = high -> 1.8 V

PMU_CFG = low -> 1.1 V (it can be also configured to

1.2 V)

GND

Ground

A7, B9, C1,

C2, D2, D6,

D8, F1, F5, F6,

G4, G5, G6,

H6, H7, J6, J7,

K8, L1, L9

GND_LNA

GND

Ground

K5, K6, K7

Table 4. Power supply pins (continued)

Symbol

I/O

voltage

I/O

Description

STA8090FG

Table 5. Main function pins

Symbol

I/O

voltage

I/O

Description

STA8090FG

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]

PMU_CFG

1.0 V

Power management unit config pin

High -> VOL1 = 1.1 V, VOM = 1.8 V

Low -> VOL1 = 1.8 V, VOM = 1.1 V

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

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