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MSP430F423AIPM Datasheet(PDF) 4 Page - Texas Instruments |
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MSP430F423AIPM Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 45 page ![]() MSP430F42xA MIXED SIGNAL MICROCONTROLLER SLAS587 -- FEBRUARY 2008 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION DVCC 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 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: It is recommended to short unused analog input pairs and connect them to analog ground. |
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