Texas Instruments MSP430F6658IZQWR
- Part No.:
- MSP430F6658IZQWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F6658IZQWR.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 113BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MSP430F6658IZQWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with USB 2.0 interface, 384 KB flash, 32 KB + 2 KB RAM, 74 GPIO, and integrated LCD driver for up to 160 segments - used in battery-powered metering and portable sensor systems requiring RTC backup and fast 3 µs wake-up from LPM3.
For engineers reviewing the MSP430F6658IZQWR datasheet, MSP430F6658IZQWR pinout, MSP430F6658IZQWR application, or MSP430F6658IZQWR equivalent, key selection criteria include USB PHY integration, 12-bit ADC with 200 ksps sampling, dual 12-bit DACs, hardware multiplier, and MicroStar Junior BGA (113-pin) package compatibility with space-constrained industrial designs.
Technical Context
The MSP430F6658IZQWR implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system featuring FLL stabilization, VLO/REFO internal sources, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management includes programmable LDO, SVS/SVM, brownout detection, and five low-power modes (LPM0–LPM4.5).
Peripherals are tightly synchronized via 6-channel DMA and shared memory-mapped registers: three USCIs support UART/IrDA/SPI (Ax) and I²C/SPI (Bx); USB module integrates PHY, 3.3-V/1.8-V power system, PLL, and eight bidirectional endpoints; ADC12_A provides autoscan across 16 channels (12 external, 4 internal) with internal reference options (1.5/2.0/2.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and 20-MHz max system clock - enables efficient C code execution and deterministic real-time response. |
| Flash / RAM | 384 KB flash + 32 KB + 2 KB RAM - supports complex firmware with bootloader, data logging, and dual-bank operation for safe OTA updates. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, PLL, and 3.3-V/1.8-V power system - eliminates external transceiver and voltage regulators in host/peripheral designs. |
| ADC Performance | 12-bit ADC12_A, 200 ksps, 16-channel autoscan (12 ext + 4 int), internal references - enables simultaneous multi-sensor acquisition without external mux or reference ICs. |
| Low-Power Modes | LPM3: 2.0 µA at 3.0 V with RTC + crystal; LPM3.5: 1.1 µA with RTC active; LPM4.5: 0.45 µA shutdown - extends coin-cell or Li-ion battery life to years in standby. |
| Wake-up Time | 3 µs from LPM3 to active mode - meets tight timing budgets in responsive sensor wake-on-event applications. |
| I/O Count | 74 GPIO with interrupt capability, configurable drive strength, and Schmitt-trigger inputs - supports direct connection to buttons, LEDs, sensors, and industrial I/O without level-shifting. |
Pinout & Package
MicroStar Junior™ BGA package (113-pin, 7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pinout conforms to TI's standardized ZQW footprint for MSP430F665x series, supporting high-density PCB layouts and thermal reliability in compact enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin JTAG-lite interface for programming and debugging; dual-function reset with NMI capability for fault-safe recovery. |
| DP / DM | USB differential data pair | Integrated full-speed USB transceiver pins - require only 1.5-kΩ pull-up on DP for device enumeration; no external PHY needed. |
| AVCC / AVSS | Analog power supply / ground | Dedicated analog domain rails isolate noise-sensitive ADC/DAC/LCD circuits from digital switching noise. |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy ±20 ppm; internal load caps eliminate external capacitors. |
| P1.x – P9.x | General-purpose I/O ports | 74 total GPIO across nine ports with individually configurable direction, pull-up/down, interrupt edge, and peripheral mapping (e.g., USCI, ADC, Timer). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY and power system | Reduces BOM count by eliminating external USB transceiver, LDOs, and clock generator - simplifies USB-enabled metering and diagnostic tool design. |
| 12-bit dual DAC with synchronization | Enables precise, phase-aligned analog output generation for sensor calibration, waveform synthesis, or closed-loop control feedback signals. |
| Hardware multiplier (MPY32) | Executes 32-bit multiply-accumulate in single cycle - accelerates FFT, PID, and filtering algorithms critical in motor control and signal processing. |
| LCD_B driver (160 segments) | Direct segment driving without external bias or charge pump - lowers power and component count in handheld displays with static or multiplexed configurations. |
| RTC_B with battery backup switch | Maintains timekeeping during main power loss using VBAT rail - supports tamper-proof timestamping and scheduled wake-up in energy-harvesting or battery-backed systems. |
Applications
| Smart Electricity Meter | Portable Gas Detector |
|---|---|
|
Use Scenario: Utility-grade meter with real-time energy calculation, tamper detection, and optical/IR communication. IC Role / Device Role / Timing Role: Main system controller handling metrology ADC sampling, LCD display update, RTC-based billing intervals, and USB firmware updates. Use Value: Integrated USB 2.0 and 12-bit ADC with internal reference eliminate external components; LPM3.5 current of 1.1 µA enables >10-year battery life in backup mode. |
Use Scenario: Handheld gas analyzer with electrochemical sensors, audible alarm, and Bluetooth-to-USB bridge. IC Role / Device Role / Timing Role: Sensor signal conditioner, alarm sequencer, and USB HID interface managing sensor readings and configuration commands. Use Value: Dual 12-bit DACs calibrate sensor baselines; 3 µs wake-up ensures immediate response to hazardous gas thresholds; 74 GPIO support multi-sensor routing and LED indicators. |
| Industrial Thermostat Controller | Programmable Digital Timer |
|
Use Scenario: DIN-rail mounted HVAC controller with temperature/humidity sensing, relay outputs, and local LCD UI. IC Role / Device Role / Timing Role: Real-time environmental monitor executing PID loop, driving 160-segment LCD, and managing RTC-scheduled setpoint changes. Use Value: LCD_B driver reduces external components; integrated comparator and DAC enable analog sensor conditioning and actuator control without op-amps or DAC ICs. |
Use Scenario: Battery-powered countdown timer with keypad input, buzzer, and segmented display for lab equipment or kitchen use. IC Role / Device Role / Timing Role: Standalone timing engine managing user input, millisecond-resolution countdown, audible alert, and segment-driven display refresh. Use Value: LPM4.5 current of 0.45 µA enables multi-year shelf life; hardware multiplier accelerates time math; 16-bit timers provide precise interval generation without software overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6659IZQWR | 512 KB flash, 64 KB + 2 KB RAM, same USB/LCD/ADC peripherals, identical ZQW package | Higher memory capacity supports larger firmware images, secure boot, and extended data buffering | Select when firmware complexity or data logging requirements exceed 384 KB flash headroom. |
| MSP430F5658IZQWR | No USB PHY or LCD driver; retains same 384 KB flash, 32 KB + 2 KB RAM, 74 GPIO, and ADC/DAC specs | Suitable for non-USB, non-display applications like sensor nodes or motor controllers where USB/LCD are unused | Choose to reduce cost and power when USB and LCD functions are unnecessary - same footprint and core peripherals. |
Compared with MSP430F6658IZQWR, MSP430F6659IZQWR offers +128 KB flash and +32 KB RAM for feature-rich firmware, while MSP430F5658IZQWR removes USB and LCD blocks to lower system cost and dynamic power - both share identical ZQW packaging and core timing/peripheral architecture.
Availability
MSP430F6658IZQWR is available at Aetrix Electronics and suitable for smart metering, portable safety instrumentation, industrial thermostat control, and programmable timer applications requiring stable component supply and long-term industrial lifecycle support.
Supply support for MSP430F6658IZQWR 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 leadership in ultra-low-power microcontrollers.
The MSP430F665x product line targets battery-operated measurement and control systems demanding nanowatt-level sleep currents, integrated analog front-ends, and USB connectivity - optimized for longevity, precision, and system integration.
FAQ
What is the maximum operating frequency of the MSP430F6658IZQWR?
The MSP430F6658IZQWR supports a maximum system clock frequency of 20 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization using external crystals (XT2 up to 32 MHz) or internal references. This allows deterministic real-time execution of time-critical tasks such as ADC sampling at 200 ksps or USB packet handling without overclocking risk.
Does the MSP430F6658IZQWR include an integrated USB physical layer?
Yes, the MSP430F6658IZQWR includes a fully integrated USB 2.0 full-speed PHY, USB-PLL, and dual 3.3-V/1.8-V power system. This eliminates the need for external USB transceivers, voltage regulators, or clock sources - enabling direct USB connectivity with only standard termination resistors and a 1.5-kΩ pull-up on DP for device enumeration.
What package type and pin count does the MSP430F6658IZQWR use?
The MSP430F6658IZQWR uses the MicroStar Junior™ BGA package (ZQW) with 113 pins in a 7 mm × 7 mm body and 0.5 mm pitch. It shares this footprint with other MSP430F665x/F565x devices, enabling layout reuse across family variants - though note that ZQW-orderable parts entered Last Time Buy status per TI's September 2020 revision.
How much SRAM and flash memory does the MSP430F6658IZQWR have?
The MSP430F6658IZQWR integrates 384 KB of on-chip flash memory and 32 KB of main RAM plus 2 KB of additional RAM - totaling 34 KB of volatile memory. This configuration supports robust firmware with real-time OS, data buffering, and secure boot features while maintaining compatibility with TI's MSP430 Flash API and BSL protocols.
Can the MSP430F6658IZQWR operate from a single 3.0-V supply?
Yes, the MSP430F6658IZQWR operates across a supply range of 1.8 V to 3.6 V. At 3.0 V, it delivers 295 µA/MHz in active mode, 2.0 µA in LPM3 (RTC + crystal), and 0.45 µA in LPM4.5 shutdown - making it ideal for single-cell Li-ion or triple-AA battery systems without external regulation.
MSP430F6658IZQWR 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, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 74
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 34K 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:
MSP430F6658IZQWR FAQ
1.How can I place an order for MSP430F6658IZQWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6658IZQWR 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 MSP430F6658IZQWR reliable?
The price and inventory of MSP430F6658IZQWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6658IZQWR is usually 5 days.
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MSP430F6658IZQWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6658IZQWR 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 MSP430F6658IZQWR?
For technical support, including MSP430F6658IZQWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6658IZQWR requirements.
6.How does Aetrix verify that MSP430F6658IZQWR is sourced from the original manufacturer or authorized distributors?
All MSP430F6658IZQWR 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 MSP430F6658IZQWR meets industry standards.
7.What is the process for return or replacement of MSP430F6658IZQWR?
All MSP430F6658IZQWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6658IZQWR, 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 MSP430F6658IZQWR part is unused and in its original packaging.
Return procedure for MSP430F6658IZQWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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