Pin description

STA1052

6/14

3.2

Pin function description

This pin list contains the definition and description of all pins.

Table 2 gives pin list for LQFP144.

Table 2.

Pin List

N°

Name

Description

Pin type

LQFP144

1

GPC9(DRD9)

GPIO PC9 (SDRAM data 9)

bidir, 3.3V , 4 mA

1

2

GPC8(DRD8)

GPIO PC8 (SDRAM data 8)

bidir, 3.3 V, 4 mA

2

3

GPB12

GPIO PB12(BSPI1_SS)

bidir, 3.3 V, 2 mA,

PU (default off)

3

4

GPB13

GPIO PB13 (BSPI1_MISO)

bidir, 3.3 V, 2 mA,

PU (default off)

4

5

GPB14

GPIO PB14 (BSPI1_MOSI)

bidir, 3.3 V, 2 mA,

PU (default off)

5

6

GPB15

GPIO PB15 (BSPI1_SCK)

bidir, 3.3 V, 2 mA,

PU (default off)

6

7

GPC7(DRD7)

GPIO PC7 (SDRAM data 7)

bidir, 3.3 V, 4 mA

7

8

GPC6(DRD6)

GPIO PC6 (SDRAM data 6)

bidir, 3.3 V, 4 mA

8

9

GPC5(DRD5)

GPIO PC5 (SDRAM data 5)

bidir, 3.3 V, 4 mA

9

10

VDD

Core VDD1.8 V

VDD

10

11

VSS

Digital pad ring VSS ground

VSS

11

12

VDD3

Digital pad ring VDD3 3.3 V

VDD3

12

13

GPC4(DRD4)

GPIO PC4 (SDRAM data 4)

bidir, 3.3 V, 4 mA

13

14

GPC3(DRD3)

GPIO PC3 (SDRAM data 3)

bidir, 3.3 V, 4 mA

14

15

GPC2(DRD2/

SFLASH_MISO)

GPIO PC2 (SDRAM data 2 or serial

flash master in/slave out)

bidir, 3.3 V, 4 mA

15

16

GPC1(DRD1/

SFLASH_MOSI)

GPIO PC1 (SDRAM Data 1 or serial

flash master out/slave in)

bidir, 3.3 V, 4 mA

16

17

GPC0(DRD0/

SFLASH_SCK)

GPIO PC0 (SDRAM data 0 or serial

Flash clock)

bidir, 3.3 V, 4 mA

17

18

PLL_VSS18P

PLL digital & analog ground

VSS

18

19

PLL_VDDA33P

PLL 3.3 analog power supply

VDD

19

20

PLL_XTI

Crystal input

analog in

20

21

PLL_XTO

Crystal output

analog out

21

22

PLL_VDDA18P

PLL 1.8V analog power supply

VDD

22

23

PLL_VDD18P

PLL 1.8V digital power supply

VDD

23

24

FE_VSSA33S

Ground for servo channels

VSS

24

25

FE_A

OPU A input

analog in

25

26

FE_C

OPU C input

analog in

26