DocID030710 Rev 1 9/31
STA8089G Pin description
30
2.4 Main function pins
2.5 Test/emulated dedicated pins
VINB 1.6 V - 4.3 V PWR Backup LDO input supply voltage (1.6 V to 4.3 V) 29
VINL1 1.8 V PWR LDO1 and ADC input supply voltage 31
VINL2 1.6 V - 4.3 V PWR LDO2 input supply voltage (1.6 V to 4.3 V) 13
VOB 1.0 V PWR LDO backup output voltage (1.0 V) 21
VOL1 1.1 V PWR LDO1 output voltage (1.1 V) 30
VOL2 1.2 V PWR LDO2 output voltage (1.2 V) 12
GND GND GND Ground EP
GND_LNA GND GND Ground 10
Table 1. Power supply pins (continued)
Symbol I/O voltage I/O Description STA8089G
Table 2. Main function pins
Symbol I/O voltage I/O Description STA8089G
ADC_IN1
1.4 V – 0 V typ
range
I ADC Analog input [1] 32
ADC_IN2
1.4 V – 0 V typ
range
I ADC Analog input [2] 33
RSTn 1.0 V I
Reset Input with Schmitt-Trigger characteristics and noise
filter.
25
RTC_XTI 1.0 V (max) I
Input of the 32 KHz oscillator amplifier circuit and input of the
internal real time clock circuit.
27
RTC_XTO 1.0 V (max) O Output of the oscillator amplifier circuit. 28
STDBY_OUT 1.0 V O When low, indicates the chip is in Standby mode 23
STDBYn 1.0 V I
When low, the chip is forced in Standby Mode - All pins in
high impedance except the ones powered by Backup supply
24
WAKEUP 1.0 V I WAKEUP from STANDBY mode 26
Table 3. Test/emulated dedicated pins
Symbol I/O voltage I/O Description STA8089G
TCK VDDIO_R2 I JTAG Test Clock 56
TDI VDDIO_R2 I JTAG Test Data In 53
TDO VDDIO_R2 O JTAG Test Data Out 50
TMS VDDIO_R2 I JTAG Test Mode Select 2
TRSTn VDDIO_R2 I JTAG Test Circuit Reset 3
