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MSP430F643 Datasheet, PDF (7/106 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
MSP430F643x
www.ti.com
SLAS720B – AUGUST 2010 – REVISED AUGUST 2012
TERMINAL
NAME
P6.4/CB4/A4
P6.5/CB5/A5
P6.6/CB6/A6/DAC0
P6.7/CB7/A7/DAC1
P7.4/CB8/A12
P7.5/CB9/A13
P7.6/CB10/A14/DAC0
P7.7/CB11/A15/DAC1
P5.0/VREF+/VeREF+
P5.1/VREF-/VeREF-
AVCC1
AVSS1
XIN
XOUT
AVSS2
P5.6/ADC12CLK/DMAE0
P2.0/P2MAP0
Table 3. Terminal Functions
NO.
I/O (1)
PZ ZQW
DESCRIPTION
General-purpose digital I/O
1 A1 I/O Comparator_B input CB4
Analog input A4 – ADC
General-purpose digital I/O
2 B2 I/O Comparator_B input CB5
Analog input A5 – ADC
General-purpose digital I/O
3 B1 I/O Comparator_B input CB6
Analog input A6 – ADC
DAC12.0 output (not available on '6435, '6433 devices)
General-purpose digital I/O
4 C2 I/O Comparator_B input CB7
Analog input A7 – ADC
DAC12.1 output (not available on '6435, '6433 devices)
General-purpose digital I/O
5 C1 I/O Comparator_B input CB8
Analog input A12 –ADC
General-purpose digital I/O
6 C3 I/O Comparator_B input CB9
Analog input A13 – ADC
General-purpose digital I/O
7 D2 I/O Comparator_B input CB10
Analog input A14 – ADC
DAC12.0 output (not available on '6435, '6433 devices)
General-purpose digital I/O
8 D1 I/O Comparator_B input CB11
Analog input A15 – ADC
DAC12.1 output (not available on '6435, '6433 devices)
General-purpose digital I/O
9 D4 I/O Output of reference voltage to the ADC
Input for an external reference voltage to the ADC
General-purpose digital I/O
10 E4 I/O Negative terminal for the ADC's reference voltage for both sources, the internal
reference voltage, or an external applied reference voltage
11
E1,
E2
Analog power supply
12 F2
Analog ground supply
13 F1 I Input terminal for crystal oscillator XT1
14 G1 O Output terminal of crystal oscillator XT1
15 G2
Analog ground supply
General-purpose digital I/O
16 H1 I/O Conversion clock output ADC
DMA external trigger input
17 G4 I/O General-purpose digital I/O with port interrupt and mappable secondary function
Default mapping: USCI_B0 SPI slave transmit enable; USCI_A0 clock input/output
(1) I = input, O = output, N/A = not available on this package offering
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