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MSP430FW429, MSP430FW428

MSP430FW427, MSP430FW425, MSP430FW423

www.ti.com

SLAS383E –OCTOBER 2003–REVISED DECEMBER 2013

MSP430FW42x Mixed-Signal Microcontroller

FEATURES

• Low Supply Voltage Range: 1.8 V to 3.6 V

• Available in 64-Pin Quad Flat Pack (QFP)

• Ultra-Low-Power Consumption: • For Complete Module Descriptions, See the

MSP430x4xx Family User's Guide, Literature

– Active Mode: 200 µA at 1 MHz, 2.2 V

Number SLAU056

– Standby Mode: 0.7 µA

– Off Mode (RAM Retention): 0.1 µA

APPLICATIONS

• Five Power-Saving Modes

• Analog Sensor Systems

• Wake Up From Standby Mode in Less Than

• Digital Sensor Systems

6 µs

• Gas, Heat, or Water Meters

• Frequency-Locked Loop, FLL+

• Industrial Meters

• 16-Bit RISC Architecture,

• Hand-Held Meters

125-ns Instruction Cycle Time

• Scan Interface for Background Water, Heat,

DESCRIPTION

and Gas Volume Measurement

The Texas Instruments MSP430™ family of ultra-low-

• 16-Bit Timer_A With Three Capture/Compare

power microcontrollers consists of several devices

Registers

featuring different sets of peripherals targeted for

• 16-Bit Timer_A With Five Capture/Compare

various applications. The architecture, combined with

five low-power modes, is optimized to achieve

Registers

extended battery life in portable measurement

• Integrated LCD Driver for Up to 96 Segments

applications. The device features a powerful 16-bit

• On-Chip Comparator

RISC CPU, 16-bit registers, and constant generators

• Serial Onboard Programming, No External that contribute to maximum code efficiency. The

digitally controlled oscillator (DCO) allows the device

Programming Voltage Needed Programmable

to wake up from low-power modes to active mode in

Code Protection by Security Fuse

less than 6 µs.

• Brownout Detector

The MSP430FW42x series are microcontroller

• Supply Voltage Supervisor and Monitor With

configurations with two built-in 16-bit timers, a

Programmable Level Detection

comparator, 96 LCD segment drive capability, a scan

• Bootstrap Loader (BSL) in Flash Devices

interface, and 48 I/O pins.

• Family Members Include:

Typical applications include sensor systems that

– MSP430FW423

capture analog signals, convert them to digital values,

8KB + 256B Flash Memory, 256B RAM

and process the data and transmit them to a host

system. The comparator and timers make the

– MSP430FW425

configurations ideal for gas, heat, and water meters,

16KB + 256B Flash Memory, 512B RAM

industrial meters, counter applications, and hand-held

– MSP430FW427

meters.

32KB + 256B Flash Memory, 1KB RAM

– MSP430FW428

48KB + 256B Flash Memory, 2KB RAM

– MSP430FW429

60KB + 256B Flash Memory, 2KB RAM

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2MSP430 is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

MSP430FW429, MSP430FW428

MSP430FW427, MSP430FW425, MSP430FW423

SLAS383E –OCTOBER 2003–REVISED DECEMBER 2013

www.ti.com

Table 1. Terminal Functions

TERMINAL

I/O DESCRIPTION

NAME NO.

64 Analog supply voltage, positive terminal. Supplies SVS, brownout, oscillator, comparator_A,

scan IF AFE, port 6, and LCD resistive divider circuitry; must not power up prior to DV

62 Analog supply voltage, negative terminal. Supplies SVS, brownout, oscillator, comparator_A,

scan IF AFE. and port 6. Must be externally connected to DV

. Internally connected to DV

1 Digital supply voltage, positive terminal.

63 Digital supply voltage, negative terminal.

SIFVSS 10 Scan IF AFE reference supply voltage.

P1.0/TA0.0 53 I/O General-purpose digital I/O

Timer0_A. Capture: CCI0A input, compare: Out0 output

BSL transmit

P1.1/TA0.0/MCLK 52 I/O General-purpose digital I/O

Timer0_A. Capture: CCI0B input

MCLK output

BSL receive

Note: TA0.0 is only an input on this pin.

P1.2/TA0.1 51 I/O General-purpose digital I/O

Timer0_A, capture: CCI1A input, compare: Out1 output

P1.3/TA1.0/SVSOUT 50 I/O General-purpose digital I/O

Timer1_A, capture: CCI0B input

SVS: output of SVS comparator

Note: TA1.0 is only an input on this pin.

P1.4/TA1.0 49 I/O General-purpose digital I/O

Timer1_A, capture: CCI0A input, compare: Out0 output

P1.5/TA0CLK/ACLK 48 I/O General-purpose digital I/O

Input of Timer0_A clock

Output of ACLK

P1.6/CA0 47 I/O General-purpose digital I/O

Comparator_A input

P1.7/CA1 46 I/O General-purpose digital I/O

Comparator_A input

P2.0/TA0.2 45 I/O General-purpose digital I/O

Timer0_A, capture: CCI2A input, compare: Out2 output

P2.1/TA1.1 44 I/O General-purpose digital I/O

Timer0_A, capture: CCI1A input, compare: Out1 output

P2.2/TA1.2/S23 35 I/O General-purpose digital I/O

Timer1_A, capture: CCI2A input, compare: Out2 output

LCD segment output 23

(1)

P2.3/TA1.3/S22 34 I/O General-purpose digital I/O

Timer1_A, capture: CCI3A input, compare: Out3 output

LCD segment output 22

(1)

P2.4/TA1.4/S21 33 I/O General-purpose digital I/O

Timer1_A, capture: CCI4A input, compare: Out4 output

LCD segment output 21

(1)

P2.5/TA1CLK/S20 32 I/O General-purpose digital I/O

Iinput of Timer1_A clock

LCD segment output 20

(1)

P2.6/CAOUT/S19 31 I/O General-purpose digital I/O

Comparator_A output

LCD segment output 19

(1)

P2.7/SIFCLKG/S18 30 I/O General-purpose digital I/O

Scan IF, signal SIFCLKG from internal clock generator

LCD segment output 18

(1)

P3.0/S17 29 I/O General-purpose digital I/O

LCD segment output 17

(1)

P3.1/S16 28 I/O General-purpose digital I/O

LCD segment output 16

(1)

(1) LCD function selected automatically when applicable LCD module control bits are set, not with PxSEL bits.

Product Folder Links: MSP430FW429 MSP430FW428 MSP430FW427 MSP430FW425 MSP430FW423

MSP430FW429, MSP430FW428

MSP430FW427, MSP430FW425, MSP430FW423

www.ti.com

SLAS383E –OCTOBER 2003–REVISED DECEMBER 2013

Table 1. Terminal Functions (continued)

TERMINAL

I/O DESCRIPTION

NAME NO.

P3.2/S15 27 I/O General-purpose digital I/O

LCD segment output 15

(1)

P3.3/S14 26 I/O General-purpose digital I/O

LCD segment output 14

(1)

P3.4/S13 25 I/O General-purpose digital I/O

LCD segment output 13

(1)

P3.5/S12 24 I/O General-purpose digital I/O

LCD segment output 12

(1)

P3.6/S11 23 I/O General-purpose digital I/O

LCD segment output 11

(1)

P3.7/S10 22 I/O General-purpose digital I/O

LCD segment output 10

(1)

P4.0/S9 21 I/O General-purpose digital I/O

LCD segment output 9

(1)

P4.1/S8 20 I/O General-purpose digital I/O

LCD segment output 8

(2)

P4.2/S7 19 I/O General-purpose digital I/O

LCD segment output 7

(2)

P4.3/S6 18 I/O General-purpose digital I/O

LCD segment output 6

(2)

P4.4/S5 17 I/O General-purpose digital I/O

LCD segment output 5

(2)

P4.5/S4 16 I/O General-purpose digital I/O

LCD segment output 4

(2)

P4.6/S3 15 I/O General-purpose digital I/O

LCD segment output 3

(2)

P4.7/S2 14 I/O General-purpose digital I/O

LCD segment output 2

(2)

P5.0/S1 13 I/O General-purpose digital I/O

LCD segment output 1

(2)

P5.1/S0 12 I/O General-purpose digital I/O

LCD segment output 0

(2)

COM0 36 O Common output. COM0-3 are used for LCD backplanes

P5.2/COM1 37 I/O General-purpose digital I/O

Common output. COM0-3 are used for LCD backplanes

P5.3/COM2 38 I/O General-purpose digital I/O

Common output. COM0-3 are used for LCD backplanes

P5.4/COM3 39 I/O General-purpose digital I/O

Common output. COM0-3 are used for LCD backplanes

R03 40 I Input port of fourth positive (lowest) analog LCD level (V5)

P5.5/R13 41 I/O General-purpose digital I/O

Input port of third most positive analog LCD level (V4 or V3)

P5.6/R23 42 I/O General-purpose digital I/O

Input port of second most positive analog LCD level (V2)

P5.7/R33 43 I/O General-purpose digital I/O

Output port of most positive analog LCD level (V1)

P6.0/SIFCH0 59 I/O General-purpose digital I/O

Scan IF, channel 0 sensor excitation output and signal input

P6.1/SIFCH1 60 I/O General-purpose digital I/O

Scan IF, channel 1 sensor excitation output and signal input

P6.2/SIFCH2 61 I/O General-purpose digital I/O

Scan IF, channel 2 sensor excitation output and signal input

(2) LCD function selected automatically when applicable LCD module control bits are set, not with PxSEL bits.

Product Folder Links: MSP430FW429 MSP430FW428 MSP430FW427 MSP430FW425 MSP430FW423

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