MSP430FE42X2 Datasheet, PDF (4/48 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FE42x2
MIXED SIGNAL MICROCONTROLLER
SLAS616 − JULY 2008
Terminal Functions
TERMINAL
I/O
NAME
NO.
DESCRIPTION
DV_CC
I₁+
I₁−
NC
1
Digital supply voltage, positive terminal
2
I Current 1 positive analog input. Internal connection to SD16 Channel 0 A0+. (see Note 1)
3
I Current 1 negative analog input. Internal connection to SD16 Channel 0 A0−. (see Note 1)
4
I Not connected. Connection to analog ground (AVSS) recommended.
NC
5
I Not connected. Connection to analog ground (AVSS) recommended.
V₁+
6
I Voltage 1 positive analog input. Internal connection to SD16 Channel 1 A0+. (see Note 1)
V_1−
7
I Voltage 1 negative analog input. Internal connection to SD16 Channel 1 A0−. (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
V_REF
P2.2/STE0
10 I/O Input for an external reference voltage / Internal reference voltage output (can be used as mid-voltage)
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: It is recommended to short unused analog input pairs and connect them to analog ground (AVSS).
4
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