Datasheet

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP430x43x Terminal Functions
TERMINAL
PN
I/O
PZ
I/O
DESCRIPTION
NAME NO.
I/O
NAME NO.
I/O
DESCRIPTION
DV
CC1
1 DV
CC1
1 Digital supply voltage, positive terminal.
P6.3/A3 2 I/O P6.3/A3 2 I/O General-purpose digital I/O / analog input a3—12-bit ADC
P6.4/A4 3 I/O P6.4/A4 3 I/O General-purpose digital I/O / analog input a4—12-bit ADC
P6.5/A5 4 I/O P6.5/A5 4 I/O General-purpose digital I/O / analog input a5—12-bit ADC
P6.6/A6 5 I/O P6.6/A6 5 I/O General-purpose digital I/O / analog input a6—12-bit ADC
P6.7/A7/SVSIN 6 I/O P6.7/A7/SVSIN 6 I/O General-purpose digital I/O / analog input a7—12-bit ADC, analog /
input to brownout, supply voltage supervisor
V
REF+
7 O V
REF+
7 O Output of positive terminal of the reference voltage in the ADC
XIN 8 I XIN 8 I
Input port for crystal oscillator XT1. Standard or watch crystals can be
connected.
XOUT 9 O XOUT 9 O Output terminal of crystal oscillator XT1
Ve
REF+
10 I Ve
REF+
10 I Input for an external reference voltage to the ADC
V
REF−
/Ve
REF−
11 I V
REF−
/Ve
REF−
11 I
Negative terminal for the ADC’s reference voltage for both sources, the
internal reference voltage, or an external applied reference voltage.
P5.1/S0 12 I/O P5.1/S0 12 I/O General-purpose digital I/O / LCD segment output 0
P5.0/S1 13 I/O P5.0/S1 13 I/O General-purpose digital I/O / LCD segment output 1
P4.7/S2 14 I/O S2 14 O General-purpose digital I/O / LCD segment output 2
P4.6/S3 15 I/O S3 15 O General-purpose digital I/O / LCD segment output 3
P4.5/S4 16 I/O S4 16 O General-purpose digital I/O / LCD segment output 4
P4.4/S5 17 I/O S5 17 O General-purpose digital I/O / LCD segment output 5
P4.3/S6 18 I/O S6 18 O General-purpose digital I/O / LCD segment output 6
P4.2/S7 19 I/O S7 19 O General-purpose digital I/O / LCD segment output 7
P4.1/S8 20 I/O S8 20 O General-purpose digital I/O / LCD segment output 8
P4.0/S9 21 I/O S9 21 O General-purpose digital I/O / LCD segment output 9
S10 22 O S10 22 O LCD segment output 10
S11 23 O S11 23 O LCD segment output 11
S12 24 O S12 24 O LCD segment output 12
S13 25 O S13 25 O LCD segment output 13
S14 26 O S14 26 O LCD segment output 14
S15 27 O S15 27 O LCD segment output 15
S16 28 O S16 28 O LCD segment output 16
S17 29 O S17 29 O LCD segment output 17
P2.7/ADC12CLK/
S18
30 I/O S18 30 O General-purpose digital I/O / conversion clock—12-bit ADC / LCD
segment output 18
P2.6/CAOUT/S19 31 I/O S19 31 O
General-purpose digital I/O / Comparator_A output / LCD segment
output 19
S20 32 O S20 32 O LCD segment output 20
S21 33 O S21 33 O LCD segment output 21
S22 34 O S22 34 O LCD segment output 22
S23 35 O S23 35 O LCD segment output 23
P3.7/S24 36 I/O S24 36 O General-purpose digital I/O / LCD segment output 24
P3.6/S25 37 I/O S25 37 O General-purpose digital I/O / LCD segment output 25
P3.5/S26 38 I/O S26 38 O General-purpose digital I/O / LCD segment output 26
P3.4/S27 39 I/O S27 39 O General-purpose digital I/O / LCD segment output 27