STA8135G datasheet(6/41 Pages) STMICROELECTRONICS

6 / 41 page

Table 3. RF front-end pins

Symbol

I/O voltage

I/O

Description

Ball

ANTSens2/AIN1

IO ring RF

Antenna sensing - TPp_S1

ANTSens1/AIN0

IO ring RF

Antenna sensing - TPn_S2

LNA_IN

LNA VCC

LNA input

LNA_OUT

LNA VCC

LNA output

R10

RFA_IN

VRFOUT

RFA input

P10

TCXO_IN

PLL VCC

TCXO input

XTAL_IN_0

PLL VCC

TCXO_0 input

RFA_IN_0

VRFOUT

RFA_0 input

LNA_OUT_0

LNA_VCC_0

LNA_0 output

LNA_IN_0

LNA_VCC_0

LNA_0 input

B10

TP_N_SENSE2_0

IO ring RF

Antenna sensing - TPIF_N_0

TP_P_SENSE1_0

IO ring RF

Antenna sensing - TPIF_P_0

CHIP_EN_0

IO ring RF

Chip_En_0

TCXO_CLK_0

PLL_VCCp_0

TCXO_CLK_0 input

Table 4. RF chip reserved

Symbol

I/O voltage(1) I/O

Description

Ball

Reserved8 IO ring1 (FS)

Reserved8

Reserved7 IO ring1 (FS) I/O

Reserved7 - ball L6 works as SPI slave interrupt pin in case the integrated STA5635 is

used for L-band correction reception

Reserved6 IOring1 (FS)

Reserved6

Reserved5 IO ring1 (FS)

Reserved5

Reserved4 IO ring1 (FS)

Reserved4

Reserved3 IO ring1 (FS)

Reserved3

Reserved2 IOring1 (FS)

Reserved2

Reserved1 IO ring1 (FS)

Reserved1

1. (FS) Fail Safe IO

Table 5. Communication interface pins

Symbol

I/O voltage(1)

I/O

Function

Description

Ball Reset

GPIO6

IO ring 2 (FS)

I/O Default

GPIO 6

ALT A

CAN0_RX

CAN receiver

ALT B

I/O

ALT C

I2C_SDA

I2C data

GPIO5

IO ring 2 (FS)

I/O Default

GPIO 5

ALT A

CAN0_TX

CAN transmitter

ALT B

SFC_DQS

Serial flash controller DQS

I/O

ALT C

I2C_CLK

I2C clock

GPIO32

IO ring 2 (FS)

I/O Default

GPIO 32

STA8135G

Block diagram and pin description

DS14788 - Rev 1

page 6/41

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