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Texas Instruments MSP430F6632IPZR
- Part No.:
- MSP430F6632IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6632IPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,235
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Product details
Overview
MSP430F6632IPZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 256 KB flash, 16 KB + 2 KB RAM, USB 2.0 interface, four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), RTC with battery backup, and up to 74 GPIO pins in a 100-pin LQFP package. It targets portable sensor systems and battery-powered metering applications requiring sub-µA standby current and fast 3 µs wake-up.
For engineers reviewing the MSP430F6632IPZR datasheet, MSP430F6632IPZR pinout, MSP430F6632IPZR application, or MSP430F6632IPZR equivalent, key selection criteria include its 256 KB flash capacity, USB-PHY integration, absence of ADC12_A and DAC12_A peripherals (vs. higher-tier F663x variants), and LQFP-100 packaging for industrial PCB assembly and thermal management.
Technical Context
The MSP430F6632IPZR implements a CPUXV2 core with constant generators and 16-bit registers for high code efficiency. Its unified clock system integrates FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz) sources, enabling precise timing control across five low-power modes.
Power management includes a programmable LDO, supply voltage supervision (SVS/SVM), brownout reset, and dedicated RTC_B module with crystal support and supply-voltage backup switching-enabling reliable timekeeping during main power loss without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators; enables compact firmware and deterministic real-time execution. |
| Flash Memory | 256 KB; sufficient for complex USB device stacks, sensor fusion algorithms, and field-upgradable firmware. |
| RAM | 16 KB main + 2 KB USB SRAM; supports USB endpoint buffering and real-time data processing without external memory. |
| Low-Power Standby (LPM3) | 1.8 µA at 2.2 V; allows multi-year battery life in always-on monitoring applications with periodic wake-up. |
| Wake-up Time | 3 µs from LPM3; meets hard real-time response requirements for interrupt-driven sensor event handling. |
| USB Interface | Full-speed (12 Mbps) USB 2.0 with integrated PHY, PLL, and 3.3-V/1.8-V power system; eliminates external transceiver and voltage regulators. |
| I/O Count | 74 GPIO pins; supports dense peripheral interfacing including LCD segment drivers, pushbuttons, and serial sensors. |
Pinout & Package
LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch); RoHS-compliant, thermally enhanced for industrial ambient operation up to 85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin JTAG/SBW interface enables in-system programming and debugging without dedicated debug headers. |
| P1.x–P9.x | General-purpose digital I/O (74 total) | Configurable pull-up/down, slew rate control, and interrupt capability per pin; supports multiplexed peripheral functions (USCI, timer capture, RTC inputs). |
| XT1IN/XT1OUT | Low-frequency crystal oscillator terminals | Supports 32.768 kHz watch crystal for accurate RTC timebase; internal load capacitance configurable via software. |
| XT2IN/XT2OUT | High-frequency crystal oscillator terminals | Drives crystals up to 32 MHz for system clock generation; optional bypass mode for external clock input. |
| DP/DM | USB differential data pair | Integrated full-speed USB transceiver with on-chip termination; requires only series resistors and ESD protection per USB spec. |
| DVCC/DVSS, AVCC/AVSS | Digital/analog power and ground | Separate analog/digital supplies reduce noise coupling into ADC reference paths; AVCC must be ≥ DVCC for proper analog operation. |
Key Features
| Feature | Design Value |
|---|---|
| Unified Clock System | FLL-stabilized DCO with multiple internal/external sources (VLO, REFO, XT1, XT2); enables dynamic clock scaling and fail-safe clock switching. |
| Flexible Power Management | Programmable LDO core voltage (1.3–1.45 V), SVS/SVM thresholds, and brownout reset; ensures stable operation across battery discharge curves. |
| Hardware Multiplier (MPY32) | 32-bit multiply-accumulate in single cycle; accelerates FFT, PID, and cryptographic operations without CPU overhead. |
| 6-Channel DMA | Offloads data movement between peripherals (USB, ADC, timers) and memory; reduces CPU intervention and active-mode current. |
| RTC_B Module | Calendar mode with alarm, battery backup switching, and crystal oscillator; maintains time across power cycles without external RTC IC. |
Applications
| Smart Energy Metering | Industrial Sensor Gateway |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with local display, tamper detection, and USB-based firmware updates. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, driving LCD segments, managing USB host communication, and maintaining RTC calendar. Use Value: 256 KB flash stores dual-firmware images for safe OTA updates; USB interface enables field technician reprogramming without opening enclosure. |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU, I²C, and SPI sensor data for cloud upload via USB-connected cellular modem. IC Role / Device Role / Timing Role: Protocol translator and data concentrator with real-time scheduling, USB CDC ACM virtual COM port, and hardware CRC16 for packet integrity. Use Value: 74 GPIO pins support simultaneous RS-485 transceiver control, sensor enable lines, and status LEDs; LPM3 current <2 µA extends backup battery runtime during mains outage. |
| Portable Medical Monitor | USB-Capable Test Equipment |
|
Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and USB mass storage for patient log export. IC Role / Device Role / Timing Role: Signal acquisition controller running real-time SpO₂ calculation, managing USB MSC class, and powering down peripherals between measurements. Use Value: Integrated USB-PHY and 2 KB USB SRAM eliminate external transceiver and buffer memory; 3 µs wake-up ensures immediate response to button press or sensor trigger. |
Use Scenario: Benchtop multimeter or oscilloscope probe with USB 2.0 interface for PC-based waveform analysis and calibration data transfer. IC Role / Device Role / Timing Role: Embedded USB device controller handling vendor-specific commands, sample timestamping via RTC_B, and bulk data streaming to host. Use Value: Hardware multiplier accelerates floating-point math for RMS/FFT calculations; separate AVCC rail isolates analog front-end noise from digital USB traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6636IPZR | Includes 12-channel ADC12_A and dual 12-bit DAC12_A; same 256 KB flash, 74 I/O, USB, and LQFP-100 package. | Required for designs needing analog signal acquisition (e.g., sensor conditioning, DAC-based calibration) not supported by MSP430F6632IPZR. | Select when analog front-end integration is mandatory; otherwise MSP430F6632IPZR offers cost and BOM simplification. |
| MSP430F6631IPZR | 192 KB flash, identical peripheral set (no ADC/DAC), same LQFP-100 package and USB capability. | Suitable for firmware-light applications (e.g., simple USB HID devices, basic RTC logging) where 256 KB flash is unnecessary. | Choose for lower-cost production when firmware size ≤192 KB and no future feature expansion is planned. |
Compared with MSP430F6636IPZR, the MSP430F6632IPZR trades analog peripherals for lower unit cost and reduced design complexity; versus MSP430F6631IPZR, it provides 64 KB additional flash headroom for feature-rich USB device firmware and bootloader robustness.
Availability
MSP430F6632IPZR is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor gateways, portable medical monitors, USB-capable test equipment, and battery-backed RTC applications requiring stable component supply and long-term industrial lifecycle support.
Supply support for MSP430F6632IPZR 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 over 50 years of microcontroller innovation.
The MSP430F6632IPZR belongs to TI's ultra-low-power mixed-signal MCU family designed for battery-operated measurement and sensing systems where extended runtime, precision timing, and integrated USB connectivity are critical.
FAQ
Does MSP430F6632IPZR include an integrated ADC or DAC?
No, the MSP430F6632IPZR does not include ADC12_A or DAC12_A peripherals. This is confirmed in Table 6-1 (Device Comparison) of the SLAS566G datasheet, which lists "–" for both ADC and DAC channels. The device retains all other core peripherals-including USB, RTC_B, USCI modules, timers, and LCD driver-but omits analog conversion blocks to reduce cost and power for applications relying on external signal conditioning.
What is the maximum system clock frequency supported by MSP430F6632IPZR?
The MSP430F6632IPZR supports a maximum system clock (MCLK) frequency of 20 MHz, as stated in the "Features" section of the datasheet. Its XT2 oscillator accepts crystals or external clocks up to 32 MHz, but the CPU clock divider and FLL configuration limit usable MCLK to 20 MHz for guaranteed timing compliance across operating conditions.
Is MSP430F6632IPZR pin-compatible with other devices in the F663x family?
Yes, the MSP430F6632IPZR in the LQFP-100 (PZ) package shares identical pinout and footprint with MSP430F6638IPZR, MSP430F6637IPZR, MSP430F6636IPZR, MSP430F6635IPZR, MSP430F6634IPZR, MSP430F6633IPZR, MSP430F6631IPZR, and MSP430F6630IPZR. This allows direct PCB reuse across variants differing only in flash/RAM size or peripheral inclusion.
What USB device classes does MSP430F6632IPZR natively support?
The MSP430F6632IPZR USB module supports CDC ACM (virtual COM port), HID, MSC, and vendor-specific classes via firmware implementation. Its integrated USB-PHY, endpoint buffers, and USB-PLL provide full-speed (12 Mbps) signaling compliance; class support depends on host-side driver availability and firmware stack selection (e.g., TI's USB API library).
How does the RTC_B module in MSP430F6632IPZR maintain time during main power loss?
The RTC_B module in MSP430F6632IPZR uses an automatic supply-voltage backup switch to transition from DVCC to a secondary battery (VBAT) when main power drops below threshold. With a 32.768 kHz crystal connected to XT1IN/XT1OUT, it continues calendar counting and alarm generation in LPM3.5 mode at 1.1 µA typical current, preserving time accuracy without external circuitry.
MSP430F6632IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 18K 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:
MSP430F6632IPZR FAQ
1.How can I place an order for MSP430F6632IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6632IPZR 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 MSP430F6632IPZR reliable?
The price and inventory of MSP430F6632IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6632IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F6632IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6632IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6632IPZR?
MSP430F6632IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6632IPZR 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 MSP430F6632IPZR?
For technical support, including MSP430F6632IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6632IPZR requirements.
6.How does Aetrix verify that MSP430F6632IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6632IPZR 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 MSP430F6632IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6632IPZR?
All MSP430F6632IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6632IPZR, 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 MSP430F6632IPZR part is unused and in its original packaging.
Return procedure for MSP430F6632IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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