Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 64 (10x10) 16-Bit 8 MHz I/O number 14

MSP430F42x

MIXED SIGNAL MICROCONTROLLER

SLAS421A − APRIL 2004 − REVISED JUNE 2007

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MSP430F42x Terminal Functions

TERMINAL

I/O DESCRIPTION

NAME NO.

I/O

DESCRIPTION

1 Digital supply voltage, positive terminal.

A0.0+ 2 I Internal connection to SD16 Channel 0, input 0 +. (see Note 1)

A0.0− 3 I Internal connection to SD16 Channel 0, input 0 −. (see Note 1)

A1.0+ 4 I Internal connection to SD16 Channel 1, input 0 +. (see Note 1)

A1.0− 5 I Internal connection to SD16 Channel 1, input 0 −. (see Note 1)

A2.0+ 6 I Internal connection to SD16 Channel 2, input 0 +. (see Note 1)

A2.0− 7 I Internal connection to SD16 Channel 2, input 0 −. (see Note 1)

XIN 8 I Input port for crystal oscillator XT1. Standard or watch crystals can be connected.

XOUT 9 O Output terminal of crystal oscillator XT1

REF

10 I/O Input for an external reference voltage / internal reference voltage output (can be used as mid-voltage)

P2.2/STE0 11 I/O General-purpose digital I/O / slave transmit enable—USART0/SPI mode

S0 12 O LCD segment output 0

S1 13 O LCD segment output 1

S2 14 O LCD segment output 2

S3 15 O LCD segment output 3

S4 16 O LCD segment output 4

S5 17 O LCD segment output 5

S6 18 O LCD segment output 6

S7 19 O LCD segment output 7

S8 20 O LCD segment output 8

S9 21 O LCD segment output 9

S10 22 O LCD segment output 10

S11 23 O LCD segment output 11

S12 24 O LCD segment output 12

S13 25 O LCD segment output 13

S14 26 O LCD segment output 14

S15 27 O LCD segment output 15

S16 28 O LCD segment output 16

S17 29 O LCD segment output 17

S18 30 O LCD segment output 18

S19 31 O LCD segment output 19

S20 32 O LCD segment output 20

S21 33 O LCD segment output 21

S22 34 O LCD segment output 22

S23 35 O LCD segment output 23

COM0 36 O Common output, COM0−3 are used for LCD backplanes.

COM1 37 O Common output, COM0−3 are used for LCD backplanes.

COM2 38 O Common output, COM0−3 are used for LCD backplanes.

COM3 39 O Common output, COM0−3 are used for LCD backplanes.

R03 40 I Input port of fourth positive (lowest) analog LCD level (V5)

NOTE 1: Open connection recommended for all unused analog inputs.