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MSC1200
SBAS289E
8
www.ti.com
PIN #
NAME
DESCRIPTION
1,6,7,16,25,47
2
NC
XIN
No Connection
The crystal oscillator pin XIN supports parallel resonant AT cut fundamental frequency crystals and ceramic resonators.
XIN can also be an input if there is an external clock source instead of a crystal.
The crystal oscillator pin XOUT supports parallel resonant AT cut fundamental frequency crystals and ceramic resonators.
XOUT serves as the output of the crystal amplifier.
Digital Ground
A HIGH on the reset input for two t
OSC
periods will reset the device.
Capacitor (220pF ceramic)
3
XOUT
4, 33, 34, 48
5
8
DGND
RST
CAP
9
AV
DD
AGND
AINCOM
IDAC
REFOUT/REF IN+
REF IN
–
AIN7
AIN6
AIN5
AIN4
AIN3
AIN2
AIN1
AIN0
P1.0-P1.7
Analog Power Supply
Analog Ground
Analog Input (can be analog common for single-ended inputs or analog input for differential inputs)
IDAC Output
Internal Voltage Reference Output/Voltage Reference Positive Input
Voltage Reference Negative Input (tie to AGND for internal voltage reference)
Analog Input Channel 7
Analog Input Channel 6
Analog Input Channel 5
Analog Input Channel 4
Analog Input Channel 3
Analog Input Channel 2
Analog Input Channel 1
Analog Input Channel 0
Port 1 is a bidirectional I/O port (refer to P1DDRL, SFR AE
H
, and P1DDRH, SFR AF
H
, for port pin configuration control).
Port 1
—
Alternate Functions:
PORT
ALTERNATE
10, 11
12
13
14
15
17
18
19
20
21
22
23
24
26-32, 37
PIN DESCRIPTIONS
38-45
P3.0-P3.7
Port 3 is a bidirectional I/O port (refer to P3DDRL, SFR B3
H
, and P3DDRH, SFR B4
H
, for port pin configuration control).
Port 3
—
Alternate Functions:
35, 36, 46
DV
DD
Digital Power Supply
PORT
ALTERNATE
MODE
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
RxD0
TxD0
INT0
INT1
T0
T1
Serial Port 0 Input
Serial Port 0 Output
External Interrupt 0
External Interrupt 1
Timer 0 External Input
Timer 1 External Input
SCK/SCL/Various Clocks (refer to PASEL, SFR F2
H
)
SCK/SCL/CLKS
N/A
MODE
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
PROG
N/A
DOUT
DIN
INT2/
SS
INT3
INT4
INT5
Serial Programming Mode
Serial Data Out
Serial Data In
External Interrupt 2/Slave Select
External Interrupt 3
External Interrupt 4
External Interrupt 5