MSC1202Y3RHHTG4 Datasheet, PDF (10/92 Pages) Texas Instruments –
Precision Analog-to-Digital Converter and Current-Output Digital-to-Analog Converter

MSC1200
MSC1201
MSC1202
SBAS317E − APRIL 2004 − REVISED MAY 2006
www.ti.com
PIN ASSIGNMENTS
NAME
MSC1200 MSC1201/1202
PIN #
PIN #
DESCRIPTION
NC
1, 6, 7, 8, 16,
5
No Connection. Leave unconnected.
25, 47
XIN
2
1
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.
XIN must not be left floating.
XOUT
3
2
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.
DGND
4, 33, 34, 48
3, 26
Digital Ground
RST
AVDD
AGND
5
9
10, 11
4
Holding the reset input high for two tOSC periods will reset the device.
6
Analog Power Supply
7, 8
Analog Ground
AINCOM
12
9
Analog Input (can be analog common for single-ended inputs or analog input for differential inputs)
IDAC
13
10
IDAC Output
REFOUT/REF IN+
14
REF IN−
15
11
Internal Voltage Reference Output/Voltage Reference Positive Input (required C_REF = 0.1µF)
12
Voltage Reference Negative Input (tie to AGND for internal voltage reference)
AIN7
17
—
Analog Input Channel 7
AIN6
18
—
Analog Input Channel 6
AIN5
19
13
Analog Input Channel 5
AIN4
20
14
Analog Input Channel 4
AIN3
21
15
Analog Input Channel 3
AIN2
22
16
Analog Input Channel 2
AIN1
23
17
Analog Input Channel 1
AIN0
24
18
Analog Input Channel 0
P1.0−P1.7
26−32, 37
19−25, 28
Port 1 is a bidirectional I/O port (refer to P1DDRL, SFR AEh, and P1DDRH, SFR AFh, for port pin
configuration control).
The alternate functions for Port 1 are listed below.
Port
Alternate Name(s) Alternate Use
P1.0
PROG
Serial programming mode (must be DGND on reset)
P1.1
N/A
P1.2
DOUT
Serial data out
P1.3
DIN
Serial data in
P1.4
INT2/SS
External interrupt 2 / Slave Select
P1.5
INT3
External interrupt 3
P1.6
INT4
External interrupt 4
P1.7
INT5
External interrupt 5
DVDD
P3.0−P3.7
35, 36, 46
38−45
27
29−36
Digital Power Supply
Port 3 is a bidirectional I/O port (refer to P3DDRL, SFR B3h, and P3DDRH, SFR B4h, for port pin
configuration control).
The alternate functions for Port 3 are listed below.
Port
Alternate Name(s) Alternate Use
P3.0
RxD0
Serial port 0 input
P3.1
TxD0
Serial port 0 output
P3.2
INT0
External interrupt 0
P3.3
INT1
External interrupt 1
P3.4
T0
Timer 0 external input
P3.5
T1
Timer 1 external input
P3.6
SCK/SCL/CLKS
SCK / SCL / various clocks (refer to PASEL, SFR F2h)
P3.7
N/A
10