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Contents

README

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MSP430F2274IRHAT

Texas Instruments · Microcontrollers (MCU/MPU/SOC) · VQFN-40(6x6)

MSP430F2274IRHAT from Texas Instruments, in a VQFN-40(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DVSS power_in Digital ground reference for the device.
2 XOUT/P2.7 bidirectional Output terminal of the crystal oscillator, also general-purpose digital I/O P2.7; if used as an input, excess current flows until P2SEL.7 is cleared because the oscillator output driver is connected to this pad after reset.
3 XIN/P2.6 bidirectional Input terminal of the crystal oscillator, also general-purpose digital I/O P2.6.
4 DVSS power_in Digital ground reference for the device.
5 RST/NMI/SBWTDIO input Reset or nonmaskable interrupt input, and Spy-Bi-Wire test data input/output during programming and test.
6 P2.0/ACLK/A0/OA0I0 bidirectional General-purpose digital I/O with ACLK output, ADC10 analog input A0 and OA0 analog input I0.
7 P2.1/TAINCLK/SMCLK/A1/OA0O bidirectional General-purpose digital I/O with Timer_A INCLK clock input, SMCLK output, ADC10 analog input A1 and OA0 analog output.
8 P2.2/TA0/A2/OA0I1 bidirectional General-purpose digital I/O with Timer_A CCI0B capture input / BSL receive, OUT0 compare output, ADC10 analog input A2 and OA0 analog input I1.
9 P3.0/UCB0STE/UCA0CLK/A5 bidirectional General-purpose digital I/O with USCI_B0 slave transmit enable, USCI_A0 clock input/output, and ADC10 analog input A5.
10 P3.1/UCB0SIMO/UCB0SDA bidirectional General-purpose digital I/O with USCI_B0 SPI slave-in/master-out or I2C data (SDA).
11 P3.2/UCB0SOMI/UCB0SCL bidirectional General-purpose digital I/O with USCI_B0 SPI slave-out/master-in or I2C clock (SCL).
12 P3.3/UCB0CLK/UCA0STE bidirectional General-purpose digital I/O with USCI_B0 clock input/output and USCI_A0 slave transmit enable.
13 AVSS power_in Analog ground reference for the device.
14 AVCC power_in Analog supply voltage; the device operates from 1.8 V to 3.6 V per the features list.
15 P4.0/TB0 bidirectional General-purpose digital I/O with Timer_B capture input CCI0A and compare output OUT0.
16 P4.1/TB1 bidirectional General-purpose digital I/O with Timer_B capture input CCI1A and compare output OUT1.
17 P4.2/TB2 bidirectional General-purpose digital I/O with Timer_B capture input CCI2A and compare output OUT2.
18 P4.3/TB0/A12/OA0O bidirectional General-purpose digital I/O with Timer_B capture input CCI0B, compare output OUT0, ADC10 analog input A12 and OA0 analog output.
19 P4.4/TB1/A13/OA1O bidirectional General-purpose digital I/O with Timer_B capture input CCI1B, compare output OUT1, ADC10 analog input A13 and OA1 analog output.
20 P4.5/TB2/A14/OA0I3 bidirectional General-purpose digital I/O with Timer_B compare output OUT2, ADC10 analog input A14 and OA0 analog input I3.
21 P4.6/TBOUTH/A15/OA1I3 bidirectional General-purpose digital I/O that, as TBOUTH, switches all TB0 to TB3 outputs to high impedance, with ADC10 analog input A15 and OA1 analog input I3.
22 P4.7/TBCLK bidirectional General-purpose digital I/O with Timer_B clock signal TBCLK input.
23 P3.4/UCA0TXD/UCA0SIMO bidirectional General-purpose digital I/O with USCI_A0 UART transmit data output or SPI slave-in/master-out.
24 P3.5/UCA0RXD/UCA0SOMI bidirectional General-purpose digital I/O with USCI_A0 UART receive data input or SPI slave-out/master-in.
25 P3.6/A6/OA0I2 bidirectional General-purpose digital I/O with ADC10 analog input A6 and OA0 analog input I2.
26 P3.7/A7/OA1I2 bidirectional General-purpose digital I/O with ADC10 analog input A7 and OA1 analog input I2.
27 P2.3/TA1/A3/VREF-/VeREF-/OA1I1/OA1O bidirectional General-purpose digital I/O with Timer_A CCI1B capture input and OUT1 compare output, ADC10 analog input A3, negative reference voltage input (VREF-/VeREF-), OA1 analog input I1 and OA1 analog output.
28 P2.4/TA2/A4/VREF+/VeREF+/OA1I0 bidirectional General-purpose digital I/O with Timer_A compare output OUT2, ADC10 analog input A4, positive reference voltage output or input (VREF+/VeREF+) and OA1 analog input I0.
29 P1.0/TACLK/ADC10CLK bidirectional General-purpose digital I/O with Timer_A clock input TACLK and ADC10 conversion clock output.
30 P1.1/TA0 bidirectional General-purpose digital I/O with Timer_A capture input CCI0A, compare output OUT0 and BSL transmit.
31 P1.2/TA1 bidirectional General-purpose digital I/O with Timer_A capture input CCI1A and compare output OUT1.
32 P1.3/TA2 bidirectional General-purpose digital I/O with Timer_A capture input CCI2A and compare output OUT2.
33 P1.4/SMCLK/TCK bidirectional General-purpose digital I/O with SMCLK signal output, and Test Clock input for device programming and test.
34 P1.5/TA0/TMS bidirectional General-purpose digital I/O with Timer_A compare output OUT0, and Test Mode Select input for device programming and test.
35 P1.6/TA1/TDI/TCLK bidirectional General-purpose digital I/O with Timer_A compare output OUT1, and Test Data Input or Test Clock Input for programming and test.
36 P1.7/TA2/TDO/TDI bidirectional General-purpose digital I/O with Timer_A compare output OUT2, and Test Data Output or Test Data Input for programming and test (selected via JTAG instruction).
37 TEST/SBWTCK input Selects test mode for the JTAG pins on Port 1 and is where the device protection fuse is connected; also serves as Spy-Bi-Wire test clock input during programming and test.
38 DVCC power_in Digital supply voltage; the device operates from 1.8 V to 3.6 V per the features list.
39 DVCC power_in Digital supply voltage; the device operates from 1.8 V to 3.6 V per the features list.
40 P2.5/ROSC bidirectional General-purpose digital I/O and input for an external DCO resistor that defines the DCO frequency.
41 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-40(6x6)
Category Embedded Processors & Controllers
Pins 41

CAD (KiCad official)

  • Symbol: MSP430F2274IRHAT
  • Footprint: Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm
  • 3D model: VQFN-40(6x6) (KiCad packages3D, STEP)
  • 3D model files: msp430f2274irhat-etched.step / msp430f2274irhat-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); msp430f2274irhat.step / msp430f2274irhat.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (105 pp, sha256 1c1e00a7c54bebc8, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF