Build with MSP430FR2433 — Datasheet Specs & AI Design Help

00 — Overview

What the MSP430FR2433 does

The MSP430FR2433 is a 16-bit mixed-signal microcontroller featuring nonvolatile ferroelectric RAM, a 16-MHz CPU, and extensive low-power modes. It operates on a supply voltage from 1.8 V to 3.6 V, consuming less than 1 µA in standby and 16 nA in shutdown. The device includes an 8-channel 10-bit ADC, four 16-bit timers, and enhanced serial interfaces supporting UART, SPI, and I2C. Available in 24-pin VQFN and DSBGA packages, this MCU targets small form factor industrial sensors, electronic door locks, low-power medical devices, fitness trackers, and energy harvesting systems. Its architecture optimizes battery life for portable sensing applications while maintaining high performance.

Next step

Start building with MSP430FR2433 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for MSP430FR2433
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	185 µA	—	fADCLK = 5 MHz, ADCON = 1, REFON = 0, SHT0 = 0, SHT1 = 0, ADCDIV = 0, ADCCONSEQx = 10b; 2 V; ADC, Power Supply and Input Range Conditions	TI datasheet, p. 35 — Table 5-20. ADC, Power Supply and Input Range Conditions
supply voltage range	2 V	—	3.6 V	ADC, Power Supply and Input Range Conditions	TI datasheet, p. 35 — Table 5-20. ADC, Power Supply and Input Range Conditions
abs max voltage (abs max)	-300 mV	—	4.1 V		TI datasheet, p. 16 — 5.1 Absolute Maximum Ratings
rds on	—	—	2 kOhm	DVCC = 2 V, 0 V ≤ VAx≤ DVCC; ADC, Power Supply and Input Range Conditions	TI datasheet, p. 35 — Table 5-20. ADC, Power Supply and Input Range Conditions
operating temperature	-40 °C	—	85 °C		TI datasheet, p. 16 — 5.3 Recommended Operating Conditions
clock frequency	—	—	16 MHz	Internal: SMCLK or MODCLK, External: UCLK, duty cycle = 50% ±10%; 2 V, 3 V; feusci; eUSCI (UART Mode) Clock Frequency	TI datasheet, p. 30 — Table 5-14. eUSCI (UART Mode) Clock Frequency
input capacitance	—	1.6 pF	2 pF	Only one terminal Ax can be selected at one time, from the pad to the ADC capacitor array, including wiring and pad; 2.2 V; ADC, Power Supply and Input Range Conditions	TI datasheet, p. 35 — Table 5-20. ADC, Power Supply and Input Range Conditions
propagation delay	—	—	10 µs	tpd; PMM, SVS and BOR	TI datasheet, p. 21 — Table 5-2. PMM, SVS and BOR
cpu speed	—	16 MHz	—		TI datasheet, p. 1
program memory size	—	15 KB	—		TI datasheet, p. 1
ram size	—	4 KB	—		TI datasheet, p. 1
io count	—	19	—		TI datasheet, p. 1
adc resolution	—	10 bit	—		TI datasheet, p. 1
core size	—	16 bit	—		TI datasheet, p. 1
operate time	15 µs	—	100 µs	over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-18)	TI datasheet, p. 39 — over recommended ranges of supply voltage and operating free-air temperat…
data retention	100 year	—	—	TJ = 25°C; FRAM	TI datasheet, p. 37 — Table 5-23. FRAM
output voltage high	1.4 V	—	2 V	I(OHmax) = -3 mA(1); 2 V; voh; Digital Outputs	TI datasheet, p. 27 — Table 5-11. Digital Outputs
output voltage low	0 V	—	600 mV	I(OLmax) = 3 mA(1); 2 V; vol; Digital Outputs	TI datasheet, p. 27 — Table 5-11. Digital Outputs
settling time	—	—	100 ns	The error in a conversion started after tADCONis less than ±0.5 LSB, Reference and input signal already settled; tadcon; ADC, 10-Bit Timing Parameters	TI datasheet, p. 35 — Table 5-21. ADC, 10-Bit Timing Parameters

02 — Alternatives

Closest matches to MSP430FR2433

MSP430FR2433IRGE similar abs max voltage, similar adc resolution, similar clock frequency

MSP430FR2310 10.0× higher settling time, 7.7× lower program memory size, 5.1× higher supply voltage range

MSP430G2553IPW28R 10.0× higher rise time, 8.0× lower clock frequency, 8.0× lower ram size

MSP430G2153 16.0× lower ram size, 15.4× lower program memory size, 10.0× higher rise time

PY32F002A 11.4× higher quiescent current, 6.5× higher supply voltage range, 5.0× lower data retention

GD32E230K4T6 10.2× lower propagation delay, 10.0× lower data retention, 6.0× higher supply voltage range

PY32F002B 11.4× higher quiescent current, 6.5× higher supply voltage range, 2.0× higher core size

GD32F303CCT6 20.0× higher load capacitance, 16.7× higher program memory size, 12.0× higher ram size

03 — FAQ

Frequently asked questions

What is the absolute maximum voltage rating for the MSP430FR2433IRGER?

The absolute maximum voltage is 4.1 V.

What is the ADC resolution of the MSP430FR2433IRGER?

The ADC resolution is 10 bit.

What is the eUSCI (UART Mode) Clock Frequency for SMCLK, MODCLK, or UCLK with a 50% ±10% duty cycle at 2 V and 3 V using feusci?

The clock frequency is 16 MHz.

What is the core size of the MSP430FR2433IRGER?

The core size is 16 bit.

What is the maximum CPU speed of the MSP430FR2433IRGER?

The maximum CPU speed is 16 MHz.

What is the data retention time for the MSP430FR2433IRGER when TJ = 25°C and FRAM?

The data retention is 100 year.

What is the input capacitance when only one terminal Ax can be selected at one time, from the pad to the ADC capacitor array, including wiring and pad, at 2.2 V under ADC, Power Supply and Input Range Conditions?

The input capacitance is 1.6 pF.

How many I/O pins does the MSP430FR2433IRGER have?

The MSP430FR2433IRGER has 19 I/O pins.

What is the operate time of the MSP430FR2433IRGER over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5-18)?

The operate time is 100 µs.

What is the maximum operating temperature for the MSP430FR2433IRGER?

The maximum operating temperature is 85 °C.

What is the output voltage high (voh) for the MSP430FR2433IRGER digital outputs when I(OHmax) = -3 mA(1)?

The output voltage high is 2 V.

What is the output voltage low specification for the MSP430FR2433IRGER digital outputs?

The output voltage low is 600 mV when I(OLmax) = 3 mA(1) at 2 V.