My Inquiry
My Account
Texas Instruments MSP430F5237IRGCT
- Part No.:
- MSP430F5237IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5237IRGCT.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:991
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F5237IRGCT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller in the MSP430F523x series, designed for battery-powered sensor and data-logging applications. It features 64 KB flash, 8 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), comparator, RTC, and hardware multiplier - all operating down to 1.8 V with standby current as low as 1.9 µA.
For engineers reviewing the MSP430F5237IRGCT datasheet, MSP430F5237IRGCT pinout, MSP430F5237IRGCT application, or MSP430F5237IRGCT equivalent, key selection criteria include its 64-pin VQFN package, absence of integrated ADC (distinguishing it from F524x variants), LPM3/LPM4 power modes, and dual-USCI interface flexibility for sensor hub or industrial telemetry designs.
Technical Context
The MSP430F5237IRGCT implements a CPUXV2 core with constant generators and 16-bit register architecture, paired with a unified clock system featuring FLL stabilization, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management includes an integrated LDO with programmable core voltage and brownout detection.
All peripherals-including three Timer_A instances (5/3/3 CC registers), one Timer_B (7 CC), RTC_A, COMP_B (8-channel), and dual USCI (A0/A1/B0/B1)-are directly memory-mapped and support DMA-triggered operation. The device lacks ADC10_A, confirming its role as a cost-optimized variant within the F523x family for non-analog-intensive control tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators; enables compact, high-efficiency C code for embedded control loops. |
| Flash / RAM | 64 KB flash / 8 KB RAM; sufficient for firmware with real-time scheduling, communication stacks, and parameter storage. |
| Supply Voltage | 1.8 V to 3.6 V; supports direct Li-ion or coin-cell battery operation without external regulators. |
| LPM3 Current | 1.9 µA at 3.0 V with RTC + watchdog + full RAM retention; enables multi-year battery life in wake-on-event systems. |
| Wake-up Time | 3.5 µs from LPM3 to active mode; meets sub-10 µs latency requirements for responsive sensor interrupt handling. |
| Timer Resources | TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC); supports concurrent PWM generation, input capture, and RTC synchronization. |
| Communication | USCI_A0/A1 (UART/IrDA/SPI), USCI_B0/B1 (I²C/SPI); enables dual-interface connectivity to sensors and host controllers. |
| I/O Count | 53 GPIO pins in 64-pin VQFN; provides ample routing for multi-peripheral control, including JTAG/SBW debug access. |
Pinout & Package
VQFN (64-pin) package with 9 mm × 9 mm body size and exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Primary timer clock input / auxiliary clock output | Configurable as ACLK source for RTC or as TA0 clock; enables precise timing independence from main system clock. |
| P2.6/RTCCLK/DMAE0 | RTC clock input / DMA trigger enable | Accepts external 32.768 kHz crystal or internal REFO; also serves as DMA event source for low-power data transfers. |
| P3.0–P3.4 / UCB0SIMO/SOMI/CLK/SDA/SCL | I²C master/slave interface | Hardware I²C on USCI_B0 supports standard/fast-mode communication with temperature, humidity, or EEPROM peripherals. |
| P4.0–P4.5 / PM_UCA1TXD/RXD/UCB1STE/CLK/SDA/SCL | Secondary USCI peripheral mapping | Enables simultaneous UART (UCA1) and I²C (UCB1) operation - critical for multi-protocol gateway nodes. |
| RST/NMI | Reset and non-maskable interrupt input | Active-low reset with NMI capability; supports hardware fault recovery and watchdog timeout signaling. |
| TEST/SBWTCK & PJ.0–PJ.3 | Spy-Bi-Wire debug interface | 4-pin SBW allows in-system programming and real-time debugging using TI MSP-FET or compatible tools. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LPM4.5 mode | 0.18 µA shutdown current enables true "off" state with retained RAM and fast restart - ideal for energy-harvesting systems. |
| Fully integrated LDO | Programmable core voltage (VCORE) eliminates need for external DC/DC converter, reducing BOM count and PCB area. |
| Dual USCI with protocol agility | Each USCI independently configurable for UART, SPI, or I²C - avoids software bit-banging and ensures deterministic timing. |
| Hardware multiplier (MPY32) | 32-bit multiply-accumulate in single cycle accelerates filtering, PID control, or cryptographic operations without CPU load. |
| Real-time clock with alarm | RTC_A module supports calendar mode, periodic interrupts, and alarm wake-up - essential for scheduled sensor sampling. |
| Comparator_B with 8 channels | Supports windowed voltage monitoring, battery level detection, or analog threshold triggering without ADC overhead. |
Applications
| Wireless Sensor Node | Industrial Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor transmitting temperature/humidity via BLE or Sub-GHz radio. IC Role / Device Role / Timing Role: Main controller managing sensor polling, data preprocessing, low-power radio interfacing, and RTC-based sleep/wake cycles. Use Value: 1.9 µA LPM3 current extends 2xAA battery life beyond 5 years; dual USCI enables concurrent sensor I²C reads and radio UART comms. | Use Scenario: Standalone vibration or current logger in factory equipment, storing timestamped samples to SPI flash. IC Role / Device Role / Timing Role: Real-time data acquisition controller with RTC timestamping, DMA-driven flash writes, and watchdog supervision. Use Value: 3.5 µs wake-up ensures missed events are minimized during burst sampling; hardware multiplier accelerates RMS calculation. |
| Smart Meter Interface Module | Portable Medical Diagnostic Device |
Use Scenario: Communication bridge between utility meter ICs (e.g., metrology SoCs) and PLC or RF mesh networks. IC Role / Device Role / Timing Role: Protocol translator and secure bootloader host, isolating high-voltage metrology domain from communication domain. Use Value: Spy-Bi-Wire debug and ROM-based BSL allow field firmware updates without exposing JTAG; 53 GPIOs route isolation signals and status LEDs. | Use Scenario: Handheld pulse oximeter or glucose meter requiring low-power operation, button interface, and display control. IC Role / Device Role / Timing Role: System manager coordinating optical sensor timing, LED drive, LCD refresh, and button debouncing. Use Value: LPM4.5 (0.18 µA) enables "instant-on" resume from deep sleep; comparator_B monitors battery voltage to prevent unexpected shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5239IRGCT | Same package and pinout; 128 KB flash (vs. 64 KB), identical peripheral set. | Preferred where firmware complexity or OTA update partitioning requires larger program memory. | Select when future firmware growth headroom or dual-bank flash bootloading is required. |
| MSP430F5234IRGZT | 48-pin VQFN (7×7 mm); same 64 KB flash but reduced I/O (37 pins) and no P6/P7 ports. | Suitable for space-constrained designs with fewer external interfaces and no RTC crystal requirement. | Choose for compact footprint and lower pin-count applications - verify P6/P7 signal dependencies before substitution. |
Compared with MSP430F5239IRGCT, the MSP430F5237IRGCT trades flash capacity for cost and density; versus MSP430F5234IRGZT, it offers higher I/O count and full RTC support in a larger package - enabling more robust sensor interfacing and time-stamped logging.
Availability
MSP430F5237IRGCT is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial data loggers, smart meter interface modules, and portable medical diagnostic devices requiring stable component supply across long-lifecycle programs.
Supply support for MSP430F5237IRGCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and reliability.
The MSP430F5237IRGCT belongs to TI's MSP430F523x ultra-low-power MCU family, engineered specifically for extended-battery-life applications in sensing, metering, and portable instrumentation where ADC functionality is not required.
FAQ
Does the MSP430F5237IRGCT include an analog-to-digital converter (ADC)?
No, the MSP430F5237IRGCT does not integrate an ADC. It belongs to the MSP430F523x series, which omits the ADC10_A module present in the F524x series. This makes the MSP430F5237IRGCT suitable for digital-control or communication-centric applications where external ADCs or purely digital sensors are used. Designers must implement external analog front-ends if voltage/current measurement is needed.
What is the maximum system clock frequency supported by the MSP430F5237IRGCT?
The MSP430F5237IRGCT supports a maximum system clock frequency of 25 MHz. This is achieved using the FLL-controlled DCO with XT2 (high-frequency crystal) up to 32 MHz or internal sources. The 25-MHz limit ensures timing compliance across all peripherals, including USCI baud-rate generation and timer capture/compare resolution.
Which development tools are compatible with the MSP430F5237IRGCT?
The MSP430F5237IRGCT is fully supported by TI's MSP-FET debugger and Code Composer Studio IDE. Its Spy-Bi-Wire (SBW) interface on pins PJ.0–PJ.3 and TEST/SBWTCK enables programming and real-time debugging without a full 4-wire JTAG connector. LaunchPad development kits with SBW headers (e.g., MSP-EXP430F5529LP) can be adapted via pin mapping for evaluation.
How many USCI modules does the MSP430F5237IRGCT provide, and what protocols do they support?
The MSP430F5237IRGCT provides two USCI_A modules (A0 and A1) and two USCI_B modules (B0 and B1). USCI_A supports UART, IrDA, and SPI; USCI_B supports I²C and SPI. This allows concurrent use of UART for host communication and I²C for sensor interfacing - for example, UCA0 for BLE module UART and UCB0 for ambient light sensor I²C - without software arbitration.
Is the MSP430F5237IRGCT pin-compatible with the MSP430F5247IRGCT?
Yes, the MSP430F5237IRGCT and MSP430F5247IRGCT share identical 64-pin VQFN (RGC) packages and pinouts. However, the MSP430F5247IRGCT includes a 10-bit ADC with 10 external channels, while the MSP430F5237IRGCT omits this peripheral. Functionally identical I/O, timer, USCI, and power management pins allow PCB reuse - but ADC-related traces and decoupling must be omitted or repurposed in MSP430F5237IRGCT designs.
MSP430F5237IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5237IRGCT FAQ
1.How can I place an order for MSP430F5237IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5237IRGCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F5237IRGCT reliable?
The price and inventory of MSP430F5237IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5237IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5237IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5237IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5237IRGCT?
MSP430F5237IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5237IRGCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F5237IRGCT?
For technical support, including MSP430F5237IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5237IRGCT requirements.
6.How does Aetrix verify that MSP430F5237IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5237IRGCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F5237IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5237IRGCT?
All MSP430F5237IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5237IRGCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F5237IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5237IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F5237IRGCT Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
