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MSP430FE42X Datasheet(PDF) 4 Page - Texas Instruments |
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MSP430FE42X Datasheet(HTML) 4 Page - Texas Instruments |
4 / 46 page MSP430FE42x MIXED SIGNAL MICROCONTROLLER SLAS396A − JULY 2003 − REVISED APRIL 2004 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MSP430FE42x Terminal Functions TERMINAL PN I/O DESCRIPTION NAME NO. I/O DESCRIPTION DVCC 1 Digital supply voltage, positive terminal. Supplies all digital parts. I1+ 2 I Current 1 positive analog input. − Internal connection to SD16 Channel 0 A0+. (see Note 1) I1− 3 I Current 1 negative analog input. − Internal connection to SD16 Channel 0 A0−. (see Note 1) I2+ 4 I Current 2 positive analog input. − Internal connection to SD16 Channel 1 A0+. (see Note 1) I2− 5 I Current 2 negative analog input. − Internal connection to SD16 Channel 1 A0−. (see Note 1) V1+ 6 I Voltage 1 positive analog input. − Internal connection to SD16 Channel 2 A0+. (see Note 1) V1− 7 I Voltage 1 negative analog input. − Internal connection to SD16 Channel 2 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 VREF 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. |
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