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Texas Instruments MSP430F6637IZQWR
- Part No.:
- MSP430F6637IZQWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F6637IZQWR.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 113BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,108
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Product details
Overview
MSP430F6637IZQWR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 192 KB flash, 16 KB + 2 KB RAM, USB 2.0 interface, dual 12-bit DACs, 12-bit ADC with 16 channels (12 external, 4 internal), and integrated LCD driver for up to 160 segments. It operates from 1.8 V to 3.6 V and targets battery-powered metering and sensor systems requiring real-time control and low-quiescent power.
For engineers reviewing the MSP430F6637IZQWR datasheet, MSP430F6637IZQWR pinout, MSP430F6637IZQWR application, or MSP430F6637IZQWR equivalent, key selection criteria include USB-capable MCU footprint, 74 I/O count, LPM3.5 RTC operation at 1.1 µA, 3 µs wake-up time, and MicroStar Junior BGA (113-pin) package compatibility in space-constrained designs.
Technical Context
The MSP430F6637IZQWR implements a 16-bit RISC CPUXV2 core with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system integrates FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz) sources, enabling precise frequency stabilization and flexible low-power mode transitions.
Peripherals include four 16-bit timers (TA0/TA1/TA2/TB0), two USCIs (USCI_A0/A1 for UART/IrDA/SPI; USCI_B0/B1 for I²C/SPI), full-speed USB PHY with integrated 3.3-V/1.8-V power system and USB-PLL, RTC_B with alarm and battery backup, and 6-channel DMA - all coordinated via a centralized interrupt vector architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with hardware multiplier for 32-bit arithmetic - enables efficient signal processing and control loop execution without external coprocessor. |
| Flash / RAM | 192 KB flash + 16 KB + 2 KB RAM - supports complex firmware with USB stack, real-time logging, and LCD GUI assets in single-chip solution. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, PLL, and dual-voltage power system - eliminates external transceiver and voltage regulators for direct PC/host connectivity. |
| ADC/DAC | 12-bit ADC (200 ksps, 16-channel autoscan) + dual 12-bit synchronized DACs - enables simultaneous analog sensing and precision actuator control in closed-loop systems. |
| Low-Power Modes | LPM3.5 (RTC active, 1.1 µA @ 3.0 V) and LPM4.5 (0.3 µA @ 3.0 V) - sustains calendar timekeeping and ultra-deep sleep for multi-year battery life in portable instruments. |
| I/O Count | 74 programmable I/O pins with Schmitt-trigger inputs and configurable drive strength - supports high-density sensor interfacing, segment LCD driving, and multi-protocol communication without glue logic. |
| Wake-up Time | 3 µs from standby (LPM3) to active mode - meets fast-response requirements in event-driven applications like tamper detection or pulse capture. |
Pinout & Package
MicroStar Junior™ BGA package (113-pin, 7 mm × 7 mm, ZQW suffix); ball pitch: 0.5 mm; RoHS-compliant; thermal pad on underside for enhanced heat dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin multifunction interface for device initialization, fault recovery, and in-system programming - reduces debug footprint vs. 4-pin JTAG. |
| DP / DM | USB differential data pair | Integrated full-speed USB transceiver I/O - requires no external termination resistors or ESD protection diodes per TI design guidelines. |
| AVCC / AVSS | Analog power supply / ground | Dedicated 3.0–3.6 V analog rail with independent ground - isolates noise-sensitive ADC/DAC/LCD circuits from digital switching noise. |
| COM0–COM7 | LCD common outputs | 8 dedicated segment-common drivers - directly support multiplexed LCD displays up to 160 segments without external bias circuitry. |
| P1.x–P9.x | General-purpose I/O ports | 74 total GPIOs across nine ports with selectable pullup/pulldown, interrupt capability, and peripheral function mapping - enables flexible peripheral routing and pin-reuse optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB-PHY + USB-PLL | Enables self-contained USB device functionality without external PHY or clock synthesizer - reduces BOM cost and board area by ≥3 components. |
| Unified Clock System with FLL | Stabilizes DCO output using crystal or internal references - achieves ±1% frequency accuracy over temperature/voltage without external trimming capacitors. |
| RTC_B with Battery Backup | Maintains calendar time during main power loss using VBAT pin - supports uninterrupted timestamping in energy meters and data loggers. |
| 160-Segment LCD Driver | Drives static or multiplexed LCDs up to 8 commons × 20 segments - eliminates need for external LCD controller IC in handheld instrumentation. |
| 6-Channel DMA Controller | Offloads CPU during ADC sampling, USB transfers, and memory moves - preserves low-power modes during high-throughput data acquisition. |
Applications
| Energy Metering | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Residential smart electricity meter with real-time consumption display, tamper detection, and USB-based firmware updates. IC Role / Device Role / Timing Role: Primary system controller managing metrology ADC sampling, LCD refresh, RTC timestamping, and USB host communication. Use Value: Integrated 12-bit ADC with internal reference and 160-segment LCD driver enable accurate kWh calculation and local UI without external analog front-end or display controller. |
Use Scenario: Handheld blood glucose monitor with graphical LCD, USB data export, and low-battery alert. IC Role / Device Role / Timing Role: Central MCU handling sensor signal conditioning, LCD rendering, USB mass storage emulation, and ultra-low-power sleep between measurements. Use Value: LPM4.5 shutdown current of 0.3 µA extends battery life beyond 2 years; USB PHY integration allows direct PC connection for calibration and log retrieval. |
| Industrial Sensor Node | Smart Thermostat |
|
Use Scenario: Wireless temperature/humidity node with local display, push-button interface, and USB provisioning port. IC Role / Device Role / Timing Role: Main processor executing sensor fusion algorithms, driving segmented LCD, managing button interrupts, and supporting field firmware upgrades via USB. Use Value: Dual 12-bit DACs generate precise reference voltages for sensor excitation; 74 GPIOs accommodate multiple sensors, buttons, and display lines in single-package solution. |
Use Scenario: Programmable HVAC thermostat with ambient display, scheduling, and USB configuration port. IC Role / Device Role / Timing Role: Real-time controller synchronizing temperature readings, LCD updates, RTC alarms, and user input scanning. Use Value: RTC_B with battery backup maintains schedule integrity during power outages; integrated LCD driver supports custom segment layout without external driver IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power USB-enabled microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6638IPZ | 256 KB flash (vs. 192 KB), same peripherals and 100-pin LQFP package - no USB PHY changes. | Preferred where larger firmware image size is required for advanced USB class support or extended feature sets. | Select when additional flash headroom is needed for bootloader, OTA updates, or expanded protocol stacks beyond MSP430F6637IZQWR capacity. |
| MSP430F6636IZQWR | 128 KB flash (vs. 192 KB), identical MicroStar Junior BGA package and peripheral set. | Suitable for cost-optimized designs with smaller firmware footprints and unchanged I/O/peripheral requirements. | Choose when application firmware fits within 128 KB and ZQW BGA footprint must be retained for PCB reuse or space constraints. |
Compared with MSP430F6637IZQWR, MSP430F6638IPZ offers higher flash density in LQFP but lacks BGA packaging, while MSP430F6636IZQWR provides identical ZQW form factor at reduced memory - enabling scalable firmware development across three flash tiers without redesigning USB or LCD subsystems.
Availability
MSP430F6637IZQWR is available at Aetrix Electronics and suitable for energy metering, portable medical instrumentation, and industrial sensor nodes requiring stable component supply, long-term lifecycle assurance, and qualified sourcing for production programs.
Supply support for MSP430F6637IZQWR 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 connectivity technologies with decades of expertise in ultra-low-power microcontrollers.
The MSP430F663x product line was designed specifically for battery-operated measurement and display applications demanding integrated USB, high-resolution analog peripherals, and sub-microamp sleep currents - targeting smart meters, handheld test equipment, and portable health devices.
FAQ
What is the maximum system clock frequency supported by the MSP430F6637IZQWR?
The MSP430F6637IZQWR supports a maximum system clock frequency of 20 MHz, achieved via its digitally controlled oscillator (DCO) stabilized by the integrated FLL loop using either internal references (REFO/VLO) or external crystals (XT1/XT2). This frequency enables real-time signal processing and USB frame timing compliance while maintaining ultra-low-power operation.
Does the MSP430F6637IZQWR include an integrated USB physical layer?
Yes, the MSP430F6637IZQWR integrates a full-speed USB 2.0 physical layer (PHY), USB-PLL, and dual-voltage (3.3-V and 1.8-V) USB power system. This eliminates the need for external USB transceivers, level shifters, or dedicated USB clock sources - simplifying design and reducing bill-of-materials cost.
What is the operating voltage range for the MSP430F6637IZQWR?
The MSP430F6637IZQWR operates from 1.8 V to 3.6 V across its DVCC and AVCC supply rails. Its integrated LDO supports programmable core voltage regulation, and supply supervision features (SVS/SVM) provide brownout detection and reset generation across this full range - ensuring reliable operation in varying battery conditions.
How many I/O pins does the MSP430F6637IZQWR provide in its ZQW package?
The MSP430F6637IZQWR provides 74 general-purpose I/O pins in its MicroStar Junior BGA (113-ball) ZQW package. These are distributed across ports P1–P9 and support peripheral function multiplexing, Schmitt-trigger inputs, configurable pullup/pulldown, and interrupt capability - enabling dense peripheral interfacing in compact layouts.
What low-power modes are available on the MSP430F6637IZQWR, and what are their typical current draws?
The MSP430F6637IZQWR offers five low-power modes: LPM3 (1.8 µA @ 2.2 V), LPM3.5 (1.1 µA @ 3.0 V with RTC active), and LPM4.5 (0.3 µA @ 3.0 V shutdown). These modes retain RAM, preserve RTC state, or fully power down the system while enabling sub-µA operation - critical for multi-year battery life in portable instrumentation.
MSP430F6637IZQWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 113-VFBGA
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 74
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 18K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F6637IZQWR FAQ
1.How can I place an order for MSP430F6637IZQWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6637IZQWR 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 MSP430F6637IZQWR reliable?
The price and inventory of MSP430F6637IZQWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6637IZQWR is usually 5 days.
3.What payment methods are accepted for MSP430F6637IZQWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6637IZQWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6637IZQWR?
MSP430F6637IZQWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6637IZQWR 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 MSP430F6637IZQWR?
For technical support, including MSP430F6637IZQWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6637IZQWR requirements.
6.How does Aetrix verify that MSP430F6637IZQWR is sourced from the original manufacturer or authorized distributors?
All MSP430F6637IZQWR 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 MSP430F6637IZQWR meets industry standards.
7.What is the process for return or replacement of MSP430F6637IZQWR?
All MSP430F6637IZQWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6637IZQWR, 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 MSP430F6637IZQWR part is unused and in its original packaging.
Return procedure for MSP430F6637IZQWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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