MSP430F643 Datasheet, PDF (11/106 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F643x
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TERMINAL
NAME
P8.6/UCB1SOMI/UCB1SCL/S9
P8.7/S8
P9.0/S7
P9.1/S6
P9.2/S5
P9.3/S4
P9.4/S3
P9.5/S2
P9.6/S1
P9.7/S0
VSSU
PU.0
NC
PU.1
LDOI
LDOO
NC
AVSS3
P7.2/XT2IN
P7.3/XT2OUT
VBAK
VBAT
P5.7/RTCCLK
DVCC3
DVSS3
TEST/SBWTCK
SLAS720B – AUGUST 2010 – REVISED AUGUST 2012
Table 3. Terminal Functions (continued)
NO.
I/O ⁽¹⁾
PZ ZQW
DESCRIPTION
General-purpose digital I/O
66 G9 I/O _{USCI_B1 SPI slave out/master in; USCI_B1 I2C clock}
LCD segment output S9
67 E12 I/O ^{General-purpose digital I/O}
LCD segment output S8
68 E11 I/O ^{General-purpose digital I/O}
LCD segment output S7
69 F9 I/O ^{General-purpose digital I/O}
LCD segment output S6
70 D12 I/O ^{General-purpose digital I/O}
LCD segment output S5
71 D11 I/O ^{General-purpose digital I/O}
LCD segment output S4
72 E9 I/O ^{General-purpose digital I/O}
LCD segment output S3
73 C12 I/O ^{General-purpose digital I/O}
LCD segment output S2
74 C11 I/O ^{General-purpose digital I/O}
LCD segment output S1
75 D9 I/O ^{General-purpose digital I/O}
LCD segment output S0
B11
76 and
B12
PU ground supply
77 A12 I/O General-purpose digital I/O - controlled by PU control register
78 B10
No connect.
79 A11 I/O General-purpose digital I/O - controlled by PU control register
80 A10
LDO input
81 A9
LDO output
82 B9
No connect.
83 A8
Analog ground supply
84 B8 I/O ^{General-purpose digital I/O}
Input terminal for crystal oscillator XT2
85 B7 I/O ^{General-purpose digital I/O}
Output terminal of crystal oscillator XT2
86 A7
87 D8
Capacitor for backup subsystem. Do not load this pin externally. For capacitor
values, see C_BAK in Recommended Operating Conditions.
Backup or secondary supply voltage. If backup voltage is not supplied, connect to
DVCC externally.
88 D7 I/O ^{General-purpose digital I/O}
RTCCLK output
89 A6
Digital power supply
90 A5
Digital ground supply
91 B6
I ^{Test mode pin; selects digital I/O on JTAG pins}
Spy-bi-wire input clock
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