7

UCD90320

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SLUSCH8 – AUGUST 2016

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Pin Functions (continued)

PIN

I/O

DESCRIPTION

NAME

NO.

AVSS

C3, E3

I

Analog ground. These are separated from DVSS to minimize the electrical noise contained

on V33D from affecting the analog functions.

DVSS

A1, C7, D9,

E5, F9, H5,

H9, J5, J8,

J11, H6,

H7, H8, G5,

G6, G7, G8,

G9, F6, F7,

F8, E7

I

Ground reference for logic and I/O pins.

VREFA+

D2

I

(Optional) positive node of external reference voltage

VREFA-

D1

I

(Optional) negative node of external reference voltage

UNUSED PINS

UNUSED-NC

A2, G13,

M12, N10

–

Do not connect. Leave floating or isolated.

UNUSED-DVSS

G12, K11,

M10, N13

–

Tie to DVSS.

UNUSED-V33D

K12

–

Tie to V33D.