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Texas Instruments MSP430F5508IRGZT
- Part No.:
- MSP430F5508IRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5508IRGZT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,509
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Product details
Overview
MSP430F5508IRGZT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with integrated USB 2.0 PHY, 16 KB flash, 4 KB + 2 KB RAM, 10-bit ADC (8 channels: 6 external, 2 internal), two USCI modules (UART/IrDA/SPI/I²C), four 16-bit timers, RTC, and hardware multiplier - designed for battery-powered sensor systems and USB-connected data loggers.
For engineers reviewing the MSP430F5508IRGZT datasheet, MSP430F5508IRGZT pinout, MSP430F5508IRGZT application, or MSP430F5508IRGZT equivalent, key selection criteria include USB 2.0 full-speed support, 31 I/O pins in 48-pin VQFN, LPM4.5 shutdown current (0.18 µA), RTC alarm capability, and port-mapped USCI signal routing on P4.
Technical Context
The MSP430F5508IRGZT implements a unified clock system with FLL stabilization, dual crystal oscillators (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO). Its power management includes an integrated LDO with programmable core voltage and supply supervision with brownout detection.
USB functionality is fully integrated: dedicated USB-PHY, USB-PLL, dual 3.3-V/1.8-V USB power system, and eight endpoints (4 IN, 4 OUT). All USCI peripherals are configurable via port mapping controller on P4, enabling flexible UART/I²C/SPI routing but limiting simultaneous function availability per pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 25-MHz max system clock - enables efficient C code execution and deterministic real-time response. |
| Memory | 16 KB flash + 4 KB + 2 KB RAM - supports firmware updates in-field and dual-bank SRAM for USB buffer isolation. |
| USB Interface | Full-speed USB 2.0 (12 Mbps) with integrated PHY and PLL - eliminates external transceiver and simplifies USB host connectivity. |
| ADC | 10-bit SAR ADC at 200 ksps, 8-channel (6 external, 2 internal) with window comparator - suitable for analog sensor acquisition without external signal conditioning. |
| Low-Power Modes | LPM4.5 draws 0.18 µA at 3 V - extends battery life in always-on monitoring applications with infrequent wakeups. |
| Timers | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC) - provides ample capture/compare resources for PWM motor control, pulse measurement, and time-stamped event logging. |
| I/O Count | 31 general-purpose I/O pins in 48-pin VQFN (RGZ) package - balances peripheral density with compact PCB footprint for space-constrained designs. |
Pinout & Package
VQFN-48 (RGZ) package, 7 mm × 7 mm, 0.5-mm pitch, exposed thermal pad (to be connected to VSS per TI recommendation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–7, 9–10, 12–13, 15–22, 24–26, 29–36, 38–40, 42–44, 46–48 | General-purpose I/O (P1.x–P6.x, PJ.x, P4.x) | Configurable digital I/O with Schmitt-trigger inputs, programmable drive strength, and interrupt/wakeup capability. |
| 5, 8, 11, 14, 23, 27–28, 37, 41, 45 | Power/Reference (AVCC1, AVSS1, DVCC1, DVSS1, VCORE, VSSU, VBUS, VUSB, V18, AVSS2) | Dedicated analog/digital power domains, core LDO output, USB power rails, and reference ground separation for noise-sensitive ADC operation. |
| 38 (PU.0/DP), 40 (PU.1/DM) | USB differential data pair | Full-speed USB 2.0 D+ and D− signals routed directly to integrated PHY - requires 27-Ω series resistors and proper impedance-controlled trace routing. |
| 39 (PUR) | USB pull-up resistor enable | Controls internal 1.5-kΩ pull-up on DP to signal USB device attachment to host - eliminates external resistor and saves BOM cost. |
| 47 (TEST/SBWTCK), 48 (RST/NMI/SBWTDIO) | JTAG/Spy-Bi-Wire debug interface | Enables in-circuit programming and debugging using TI's MSP-FET or compatible tools - no external voltage required for SBW mode. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY + PLL | Reduces bill-of-materials by eliminating external transceiver and oscillator; enables direct connection to USB hosts without level-shifting. |
| Port Mapping Controller (P4) | Allows dynamic assignment of USCI_A1/USCI_B1 functions (UART/I²C/SPI) to P4 pins - increases design flexibility without requiring multiple PCB revisions. |
| RTC with Alarm & Calendar Mode | Supports time-stamped data logging and scheduled wakeups from LPM3 (1.9 µA) - critical for energy-efficient periodic sensor sampling. |
| Three-Channel DMA | Enables zero-CPU-overhead data transfers between peripherals (e.g., ADC → RAM, USB → RAM) - preserves low-power state during bulk data movement. |
| Hardware Multiplier (MPY32) | Executes 32-bit multiply-accumulate operations in one cycle - accelerates digital filtering, FFT, and sensor fusion algorithms in flash-constrained environments. |
Applications
| USB-Powered Sensor Node | Data Logger with RTC Wakeup |
|---|---|
Use Scenario: Compact environmental monitor powered directly from USB bus, measuring temperature/humidity and streaming data to PC. IC Role / Device Role / Timing Role: Main MCU handling sensor interfacing, ADC conversion, USB packet assembly, and bus-powered regulation via integrated USB-LDO. Use Value: Eliminates external DC-DC converter and USB transceiver; LPM4.5 (0.18 µA) ensures minimal standby drain when disconnected. | Use Scenario: Battery-operated field logger capturing soil moisture readings every 2 hours and storing timestamps. IC Role / Device Role / Timing Role: Real-time clock with calendar mode triggers periodic wakeups from LPM3 (1.9 µA), initiates ADC sampling, and stores results in RAM/flash. Use Value: RTC alarm wakeup avoids continuous polling; 31 I/O pins support multiple sensor interfaces and SD card SPI bus. |
| Wireless Headset Bridge | Industrial USB Configuration Tool |
Use Scenario: BLE-to-USB bridge in headset accessories, translating audio control commands (play/pause/volume) to HID-compliant USB reports. IC Role / Device Role / Timing Role: USB device controller managing HID endpoint descriptors and parsing vendor-defined command packets over interrupt IN/OUT pipes. Use Value: Integrated USB-PLL ensures jitter-free timing for HID report transmission; USCI_A1 handles BLE UART link with automatic baud-rate detection. | Use Scenario: Handheld tool for configuring industrial sensors via USB, displaying settings on local LCD and updating firmware over DFU. IC Role / Device Role / Timing Role: Host-facing USB device implementing custom CDC ACM class, while driving 4-bit parallel LCD and managing flash-based parameter storage. Use Value: Dual USCI modules allow concurrent USB CDC communication and SPI-based display refresh; hardware multiplier accelerates CRC-16 checksums for firmware validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5510IRGZT | 32 KB flash, 47 I/O pins, same USB/USCI/peripheral set - differs only in memory size and I/O count. | Required for larger firmware images or higher I/O density (e.g., multi-sensor arrays with discrete GPIO control). | Select when >16 KB flash or >31 I/Os are needed; identical pinout and software compatibility simplify migration. |
| MSP430F5509IRGZT | 24 KB flash, 47 I/O pins, identical peripheral complement and USB capability - differs only in flash capacity. | Suitable for mid-size applications needing more flash than MSP430F5508 but less than MSP430F5510. | Choose for balanced cost/performance where 16 KB is insufficient but 32 KB is excessive; drop-in replacement in RGZ package. |
Compared with MSP430F5509IRGZT and MSP430F5510IRGZT, the MSP430F5508IRGZT offers the lowest flash capacity (16 KB) and I/O count (31) within the F550x USB family - making it optimal for cost-sensitive, space-constrained USB sensor nodes where firmware footprint and peripheral count are tightly bounded.
Availability
MSP430F5508IRGZT is available at Aetrix Electronics and suitable for USB-connected sensor nodes, battery-powered data loggers, and industrial configuration tools requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5508IRGZT 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 and embedded processing solutions, with decades of expertise in ultra-low-power microcontrollers and precision analog front-ends.
The MSP430F5508IRGZT belongs to the MSP430F5xx USB-capable microcontroller product line, engineered specifically for energy-constrained applications requiring native USB 2.0 connectivity, high-precision analog sensing, and deterministic real-time control.
FAQ
What USB speed and protocol does the MSP430F5508IRGZT support?
The MSP430F5508IRGZT supports full-speed USB 2.0 (12 Mbps) with integrated PHY, USB-PLL, and eight endpoints (four IN, four OUT). It implements standard USB device classes including CDC ACM and HID out-of-box, and supports custom class development via TI's USB stack. The integrated USB-LDO generates regulated 3.3-V and 1.8-V supplies directly from VBUS, eliminating external regulators.
How many I/O pins does the MSP430F5508IRGZT have, and what is their configuration flexibility?
The MSP430F5508IRGZT provides 31 general-purpose I/O pins in its 48-pin VQFN (RGZ) package. Each pin supports multiple functions via port mapping - especially on P4, where USCI_A1 and USCI_B1 signals (UART/I²C/SPI) can be dynamically assigned. All I/Os feature Schmitt-trigger inputs, programmable drive strength, and individual interrupt/wakeup capability, enabling robust interfacing with sensors, displays, and digital peripherals.
Does the MSP430F5508IRGZT include a real-time clock, and what are its low-power capabilities?
Yes, the MSP430F5508IRGZT integrates a full-featured RTC_A module with calendar mode, alarm interrupts, and battery-backed operation. In standby mode (LPM3), RTC remains active with crystal oscillator, watchdog, and supply supervisor enabled while consuming just 1.9 µA at 3 V - allowing precise timekeeping and scheduled wakeups for periodic sensor sampling without draining battery reserves.
What ADC resolution and channel count does the MSP430F5508IRGZT provide?
The MSP430F5508IRGZT features a 10-bit successive-approximation ADC (ADC10_A) capable of 200 ksps sampling rate. It supports eight input channels: six external analog inputs (A0–A5) and two internal references (VeREF+, VeREF−). The integrated window comparator allows autonomous threshold detection without CPU intervention, reducing active-mode duty cycle in monitoring applications.
Is the MSP430F5508IRGZT pin-compatible with other devices in the MSP430F55xx family?
Yes, the MSP430F5508IRGZT shares identical pinout and package (48-pin VQFN, RGZ) with MSP430F5509IRGZT and MSP430F5510IRGZT. All three devices support the same peripheral signal mappings and power/ground connections, enabling hardware reuse across firmware variants. Differences are limited to flash size (16 KB vs. 24 KB vs. 32 KB) and I/O count (31 vs. 47), with no changes to pin function definitions or electrical characteristics.
MSP430F5508IRGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-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, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5508IRGZT FAQ
1.How can I place an order for MSP430F5508IRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5508IRGZT 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 MSP430F5508IRGZT reliable?
The price and inventory of MSP430F5508IRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5508IRGZT is usually 5 days.
3.What payment methods are accepted for MSP430F5508IRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5508IRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5508IRGZT?
MSP430F5508IRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5508IRGZT 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 MSP430F5508IRGZT?
For technical support, including MSP430F5508IRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5508IRGZT requirements.
6.How does Aetrix verify that MSP430F5508IRGZT is sourced from the original manufacturer or authorized distributors?
All MSP430F5508IRGZT 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 MSP430F5508IRGZT meets industry standards.
7.What is the process for return or replacement of MSP430F5508IRGZT?
All MSP430F5508IRGZT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5508IRGZT, 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 MSP430F5508IRGZT part is unused and in its original packaging.
Return procedure for MSP430F5508IRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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