Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TSSOP 24 16-Bit 12 MHz I/O number 11

MSP430AFE2x3

MSP430AFE2x2

MSP430AFE2x1

www.ti.com

SLAS701A –NOVEMBER 2010–REVISED MARCH 2011

Table 2. Terminal Functions

TERMINAL

I/O DESCRIPTION

NAME NO.

A0.0+ 1 I SD24_A positive analog input A0.0

(1)

A0.0- 2 I SD24_A negative analog input A0.0

(1)

A1.0+ 3 I SD24_A positive analog input A1.0 (not available on MSP430AFE2x1)

(1)

A1.0- 4 I SD24_A negative analog input A1.0 (not available on MSP430AFE2x1)

(1)

AVCC 5 Analog supply voltage, positive terminal. Must not power up prior to DVCC.

AVSS 6 Analog supply voltage, negative terminal

Input for an external reference voltage/

VREF 7 I/O

output for internal reference voltage (can be used as mid-voltage)

SD24_A positive analog input A2.0 (not available on MSP430AFE2x2 and

A2.0+ 8 I

MSP430AFE2x1)

(1)

SD24_A negative analog input A2.0 (not available on MSP430AFE2x2 and

A2.0- 9 I

MSP430AFE2x1)

(1)

Selects test mode for JTAG pins on P1.5 to P1.7 and P2.0.

TEST/SBWTCK 10 I The device protection fuse is connected to TEST.

Spy-Bi-Wire test clock input for device programming and test.

Reset or nonmaskable interrupt input

RST/NMI/SBWTDIO 11 I

Spy-Bi-Wire test data input/output for device programming and test.

General-purpose digital I/O pin

Analog input to supply voltage supervisor

P1.0/SVSIN/TACLK/SMCLK/TA2 12 I/O Timer_A3, clock signal TACLK input

SMCLK signal output

Timer_A3, compare: Out2 Output

DVSS 13 Digital supply voltage, negative terminal

Input terminal of crystal oscillator

P2.6/XT2IN 14 I/O

General-purpose digital I/O pin

Output terminal of crystal oscillator

P2.7/XT2OUT 15 I/O

General-purpose digital I/O pin

DVCC 16 Digital supply voltage, positive terminal.

General-purpose digital I/O pin

P1.1/TA1/SDCLK 17 I/O Timer_A3, capture: CCI1A and CCI1B inputs, compare: Out1 output

SD24_A bit stream clock output

General-purpose digital I/O pin

P1.2/TA0/SD0DO 18 I/O Timer_A3, capture: CCI0A and CCI0B inputs, compare: Out0 output

SD24_A bit stream data output for channel 0

General-purpose digital I/O pin

P1.3/UTXD0/SD1DO 19 I/O Transmit data out - USART0/UART mode

SD24_A bit stream data output for channel 1 (not available on MSP430AFE2x1)

General-purpose digital I/O pin

Receive data in - USART0/UART mode

P1.4/URXD0/SD2DO 20 I/O

SD24_A bit stream data output for channel 2 (not available on MSP430AFE2x2 and

MSP430AFE2x1)

General-purpose digital I/O

Slave in/master out of USART0/SPI mode

P1.5/SIMO0/SVSOUT/TMS 21 I/O SVS: output of SVS comparator

JTAG test mode select. TMS is used as an input port for device programming and

test.

General-purpose digital I/O pin

Slave out/master in of USART0/SPI mode

P1.6/SOMI0/TA2/TCK 22 I/O

Timer_A3, compare: Out2 output

JTAG test clock. TCK is the clock input port for device programming and test.

General-purpose digital I/O pin

External clock input - USART0/UART or SPI mode, clock output - USART0/SPI

mode.

P1.7/UCLK0/TA1/TDO/TDI 23 I/O

Timer_A3, compare: Out1 output

JTAG test data output port. TDO/TDI data output or programming data input

terminal.

(1) It is recommended to short unused analog input pairs and connect them to analog ground.