ADUCM350 datasheet(21/41 Pages) AD

21 / 41 page

ADuCM350

Data Sheet

Rev. A | Page 20 of 40

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Figure 9. Bump Location (Top View Looking Through Device, Bumps Not to Scale)

Table 35. Pin Function Descriptions

Pin No.

Mnemonic

I/O1

I/O Supply2

GPIO

Pull-Up/Down2

Description

Power and Ground

VCCM_ANA

N/A

Battery Connection and Analog Circuit Power.

Connect VCCM_ANA to the CR2032 battery.

VCCM_ANA powers the analog circuits. This

pin is connected to VCCM_DIG internally.

VCCM_DIG

N/A

Battery Connection and Digital Circuit Power.

Connect VCCM_DIG to the CR2032 battery.

VCCM_DIG powers the digital circuits. This pin

is connected to VCCM_ANA internally.

VBUS

N/A

5 V USB Supply Voltage.

VBACK

N/A

RTC Supply. Connect VBACK to the super

capacitor.

H15

VDD_IO

N/A

VDD_IO Supply.

VUSB

N/A

Regulated USB 3.6 V Supply.

R10

VREF

N/A

1.8 V Reference Voltage Decoupling Capacitor

Pin.

P10

VBIAS

N/A

1.1 V Bias Voltage Decoupling Capacitor Pin.

TIA_O

TIA_I

AFE 7

AFE 5

AFE 3

AFE 2

AFE 1

RCAL 2

RCAL 1

AN_B

AN_C

VBIAS

VREF

AFE 8

AFE 6

AFE 4

AVDD_RX/

AVDD_TX

VCCM_

ANA

AN_A

AN_D

REF_

EXCITE

AGND_RX/

AGND_TX

AGND

CTOUCH

P3.7/URX/

TOUTC/

SPI1_CS

P3.6/UTX/

TOUTB/

SPI1_MOSI

P3.4/

I2CSCL/

SPI1_SCLK

P3.1/

SPI0_MISO

P0.14/

SPIH_MOSI

P0.12/

SPIH_SCLK

P0.2/

CAPT_C

P0.3/

CAPT_D

DGND

P3.5/

I2CSD/

SPI1_MISO

RESETX

AGND_REF

P0.4/

CAPT_E

P0.1/

CAPT_B

P3.0/

SPI0_SCLK

P3.14/

LRCLK

P3.13/

BEEPX/

SDATA

P3.12/

BEEP/

BMCLK

DGND

USB

P0.0/

CAPT_A

P0.5/

CAPT_F

P3.11/S32

P3.10/S31

P3.9/S30

P3.8/S29

P2.15/S28

VCCM_

DIG

P2.7/S20/

TOUTA

P2.9/S22

P2.10/S23

P2.11/S24 P2.12/S25

P2.13/S26

P2.14/S27

P2.6/

S19/TE

P1.15/

S18/D15

P1.14/

S17/D14

P1.13/

S16/D13

P1.12/

S15/D12

P1.11/

S14/D11

P1.10/

S13/D10

P1.9/S12/

DGND2/

LCD_GND

P1.3/S6/

P1.4/S7/

P1.5/S8/

P1.6/S9/

P1.7/S10/

P1.8/S11/

P2.3/

COM3/

DCX

P2.2/

COM2/

CSX

V_LCD_23

P1.2/S5/

D2/DIN

P1.1/S4/

D1/DOUT

P1.0/S3/

D0/SCL

P2.5/S2/

ECLOCK-

WRX

P2.4/S1/

RWX-RDX

P2.1/

COM1/

RESX

P2.0/

COM0

P2.8/S21

DGND1

DNC

P3.3/

SPI0_CS

P3.2/

SPI0_MOSI

VDD_IO

TRACECLK

TRACE0

TRACE2

TRACE3

TRACE1

TRST

LF_XTAL1

P0.11

P0.15/

SPIH_CS

TCK-

SWCLK/

P0.9

TMS-

SWDIO/

P0.8

LF_XTAL2

P0.13/

SPIH_MISO

TDO-SWO/

P0.6/UTX

P0.10/

TOUTC

P4.2/

TOUTB

P4.1/

I2CSD

TDI/P0.7/

URX

P4.0/

I2CSCL

VBACK

VBUS

USB DP

VUSB

USB DM

VLCDVDD

HF_XTAL2

V_LCD_13

HF_XTAL1

VLCD FLY2

VLCD FLY1

DVDD

BOOT

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