My Inquiry
My Account
Texas Instruments MSP430FG437IPNR
- Part No.:
- MSP430FG437IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FG437IPNR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:780
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FG437IPNR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32 KB Flash, 1 KB RAM, a 12-bit ADC with 12 channels and internal reference, dual 12-bit DACs, three configurable operational amplifiers, two 16-bit timers (Timer_A3 and Timer_B3), USART (UART/SPI), LCD driver for up to 128 segments, and 48 I/O pins in an 80-pin QFP package. It targets battery-powered sensor systems requiring extended runtime and integrated analog front-end capability.
For engineers reviewing the MSP430FG437IPNR datasheet, MSP430FG437IPNR pinout, MSP430FG437IPNR application, or MSP430FG437IPNR equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-µA LPM4 current (0.1 µA at 25°C), integrated LCD driver with COM/SEG support, and dual DAC synchronization - all critical for portable metering and low-power human-interface designs.
Technical Context
The MSP430FG437IPNR implements a digitally controlled oscillator (DCO) enabling wake-up from LPM3 in under 6 µs, paired with five programmable low-power modes optimized for intermittent sensing and display-driven operation. Its analog subsystem integrates three independent op amps usable as PGA, comparator, or transimpedance amplifier, alongside a 12-bit ADC with sample-and-hold and autoscan, and two synchronized 12-bit voltage-output DACs.
Dual 16-bit timers provide flexible PWM, capture/compare, and real-time clock functions: Timer_A3 supports three capture/compare registers with interrupt capability, while Timer_B3 adds shadow registers for glitch-free updates. The on-chip LCD driver directly drives up to 128 segments using four commons (COM0–COM3) and dedicated segment outputs (S0–S31 plus auxiliary S10–S23), eliminating external display controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle; constant generators maximize code efficiency for compact firmware in resource-constrained devices. |
| Memory | 32 KB Flash (programmable via BSL, no external voltage); 1 KB RAM with retention in LPM4 mode for state preservation during deep sleep. |
| ADC | 12-bit SAR ADC with 12 input channels, internal reference (2.5 V), sample-and-hold, and autoscan - enables simultaneous multi-sensor acquisition without CPU intervention. |
| DAC | Dual 12-bit voltage-output DACs (DAC0/DAC1) with hardware synchronization - supports precise analog waveform generation or bias control in closed-loop sensor systems. |
| Power Consumption | Active mode: 300 µA at 1 MHz/2.2 V; LPM3: 1.1 µA (with ACLK active); LPM4: 0.1 µA - extends coin-cell life to years in intermittent-read applications. |
| LCD Driver | Integrated driver supporting up to 128 segments across 4 commons (COM0–COM3); eliminates external LCD controller IC and reduces BOM count in display-based instruments. |
| Package & I/O | 80-pin QFP (PN), 12 mm × 12 mm; 48 general-purpose I/O pins with Schmitt-trigger inputs, configurable per-port pullup/down, and peripheral multiplexing. |
Pinout & Package
Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Non-maskable Interrupt Input | Active-low reset with built-in brownout detection; also serves as NMI source for critical fault handling without masking. |
| P1.0/TA0 | General-purpose I/O / Timer_A Capture/Compare | Primary timer channel 0 input/output; supports edge-triggered capture or PWM output with 16-bit resolution. |
| P2.4/UTXD0 | USART Transmit Data Output | Asynchronous UART transmit pin; software-selectable for SPI mode as MOSI when USART configured for synchronous operation. |
| P6.6/A6/DAC0/OA2I0 | Analog Input / DAC Output / Op Amp Input | Multi-function pin: routes DAC0 output, accepts analog input A6, or feeds OA2's inverting input - enables compact analog signal routing. |
| COM0–COM3 | LCD Backplane Outputs | Four dedicated common outputs driving LCD backplanes; used with segment outputs (S0–S31, S10–S23) to drive up to 128-segment displays. |
| VREF+/VeREF+ | ADC/DAC Reference Voltage Input/Output | Accepts external reference or outputs internal 2.5 V reference; shared between ADC12 and DAC12 for consistent full-scale calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention) enables decade-scale battery life in remote sensors and handheld meters. |
| Integrated analog front-end | 12-bit ADC + dual 12-bit DACs + three op amps allow complete sensor signal chain (conditioning, conversion, feedback) on single chip. |
| On-chip LCD driver | Drives 128 segments with 4 commons and 32 segment outputs - eliminates external display controller and reduces PCB layer count. |
| Bootloader (BSL) | Factory-programmed UART-based bootloader enables field firmware updates without JTAG debugger or external programmer. |
| Hardware DMA | Single-channel DMA transfers ADC results or LCD data directly to RAM - frees CPU for computation during high-speed sampling or display refresh. |
Applications
| Hand-Held Meters | Digital Motor Control |
|---|---|
Use Scenario: Portable multimeters and environmental monitors acquiring voltage, current, temperature, and humidity with local display. IC Role / Device Role / Timing Role: Central MCU managing sensor interfaces, 12-bit ADC sampling, dual DAC-based calibration references, and 128-segment LCD display timing. Use Value: Integrated LCD driver and ultra-low standby current (1.1 µA) enable >5-year battery life with daily use and instant-on responsiveness. | Use Scenario: Closed-loop speed/torque control in BLDC fans or small pumps using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time controller executing PID algorithms, generating synchronized PWM via Timer_B3 shadow registers, and conditioning analog feedback with op amps. Use Value: Dual synchronized 12-bit DAC outputs provide precise reference voltages for current-sense amplifier biasing and motor phase offset correction. |
| Analog Sensor Systems | Thermostats |
Use Scenario: Multi-sensor nodes measuring pressure, gas concentration, and ambient light in building automation or industrial IoT gateways. IC Role / Device Role / Timing Role: Signal conditioner and digitizer using three op amps (PGA configuration), 12-channel ADC autoscan, and low-power sleep/wake cycles. Use Value: Three configurable op amps eliminate external signal-conditioning ICs, reducing component count and board area by ≥40% vs discrete solutions. | Use Scenario: Residential HVAC thermostats with temperature/humidity sensing, user interface (LCD + buttons), and wireless communication interface. IC Role / Device Role / Timing Role: Main system controller handling sensor reading, LCD update, button debouncing, and serial interface to RF module via USART0. Use Value: Single-chip integration of 48 GPIO, LCD driver, and UART/SPI reduces bill-of-materials cost by $0.85–$1.20 versus MCU + display controller + level shifter solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FG439IPNR | 60 KB Flash, 2 KB RAM, same peripherals and package - higher memory headroom for complex UI or logging. | Better suited for feature-rich thermostats requiring firmware-over-the-air updates or extended data buffering. | Select when firmware size exceeds 32 KB or RAM usage requires >1 KB for real-time buffers and stack depth. |
| MSP430F5529IPN | 25 MHz CPU, USB interface, 128 KB Flash, but no integrated LCD driver or dual DACs - different analog integration focus. | Preferred for USB-connected test equipment or PC-linked sensor hubs where display is secondary or external. | Choose only if USB connectivity is mandatory and LCD/DAC integration is unnecessary; not drop-in compatible due to peripheral mismatch. |
Compared with MSP430FG439IPNR, the MSP430FG437IPNR trades memory capacity for cost-sensitive deployment in fixed-function meters; versus MSP430F5529IPN, it delivers superior analog integration and lower active current but lacks USB - making it optimal for standalone, battery-powered display instruments.
Availability
MSP430FG437IPNR is available at Aetrix Electronics and suitable for hand-held meters, thermostats, analog sensor systems, and digital timers requiring stable component supply and long-term industrial availability.
Supply support for MSP430FG437IPNR 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 specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in low-power design.
The MSP430FG43x product line was engineered specifically for ultra-low-power, analog-intensive applications such as portable instrumentation and display-driven control systems - prioritizing integrated peripherals, sub-µA sleep modes, and robust mixed-signal performance.
FAQ
What is the maximum operating frequency of the MSP430FG437IPNR at 3.6 V?
The MSP430FG437IPNR achieves a maximum system clock (MCLK) frequency of 8 MHz at 3.6 V, enabled by its digitally controlled oscillator (DCO). This frequency supports real-time signal processing and responsive LCD updates while maintaining ultra-low power consumption in active mode (470–570 µA typical).
Does the MSP430FG437IPNR support external crystal oscillators?
Yes, the MSP430FG437IPNR supports two crystal oscillators: XT1 (32.768 kHz watch crystal or 1–8 MHz crystal/resonator) and XT2 (1–8 MHz crystal/resonator). Pins XIN/XOUT serve XT1; XT2IN/XT2OUT serve XT2 - enabling precision timing for RTC, communication baud rates, or ADC sampling clocks.
How many LCD segments can the MSP430FG437IPNR drive, and what is the segment drive method?
The MSP430FG437IPNR drives up to 128 segments using four commons (COM0–COM3) and 32 dedicated segment outputs (S0–S31 plus auxiliary S10–S23). It uses static or multiplexed (1:2, 1:3, or 1:4) drive methods with integrated charge pump for contrast control - no external bias circuitry required.
What are the key differences between the MSP430FG437IPNR and MSP430FG438IPNR?
The MSP430FG437IPNR has 32 KB Flash and 1 KB RAM, while the MSP430FG438IPNR offers 48 KB Flash and 2 KB RAM. All other peripherals - including ADC, DACs, op amps, timers, USART, and LCD driver - are identical. Pinout and package are fully compatible between the two variants.
Is the MSP430FG437IPNR pin-compatible with other MSP430FG43x family members in the 80-pin QFP package?
Yes, the MSP430FG437IPNR is pin-compatible with MSP430FG438IPNR and MSP430FG439IPNR in the 80-pin QFP (PN) package. All share identical pin assignments, electrical characteristics, and peripheral mapping - enabling hardware reuse across memory-tier variants during design scaling.
MSP430FG437IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FG437IPNR FAQ
1.How can I place an order for MSP430FG437IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FG437IPNR 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 MSP430FG437IPNR reliable?
The price and inventory of MSP430FG437IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FG437IPNR is usually 5 days.
3.What payment methods are accepted for MSP430FG437IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FG437IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FG437IPNR?
MSP430FG437IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FG437IPNR 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 MSP430FG437IPNR?
For technical support, including MSP430FG437IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FG437IPNR requirements.
6.How does Aetrix verify that MSP430FG437IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430FG437IPNR 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 MSP430FG437IPNR meets industry standards.
7.What is the process for return or replacement of MSP430FG437IPNR?
All MSP430FG437IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FG437IPNR, 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 MSP430FG437IPNR part is unused and in its original packaging.
Return procedure for MSP430FG437IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FG437IPNR 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…
