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Texas Instruments MSP430F5508IPT
- Part No.:
- MSP430F5508IPT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MSP430F5508IPT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:442
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Product details
Overview
MSP430F5508IPT 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 MSP430F5508IPT datasheet, MSP430F5508IPT pinout, MSP430F5508IPT application, or MSP430F5508IPT equivalent, key selection criteria include USB PHY integration, LQFP-48 package compatibility, 1.8–3.6 V operation, sub-2 µA LPM3 current, and dual-USCI support for simultaneous UART + I²C or SPI interfaces.
Technical Context
The MSP430F5508IPT implements a unified clock system with FLL stabilization, programmable LDO core regulation, and flexible port mapping via P4 controller - enabling dynamic reassignment of USCI_A1/USCI_B1 functions to pins P4.0–P4.5. Its USB subsystem includes integrated 3.3-V/1.8-V power rails, USB-PLL, and eight bidirectional endpoints.
It features three-channel DMA, CRC16 engine, and enhanced wake-up from LPM3 in <5 µs. The 10-bit ADC supports window comparator mode and operates at up to 200 ksps, while Timer_B0 provides seven capture/compare shadow registers for precise PWM generation and event timing.
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 low-cycle-count ISR handling. |
| Flash / RAM | 16 KB flash + 4 KB + 2 KB RAM - sufficient for USB stack, sensor firmware, and buffered data logging without external memory. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V regulators, and USB-PLL - eliminates need for external transceiver or voltage translators. |
| LPM3 Current | 1.9 µA at 2.2 V (typical) with RTC, watchdog, and full RAM retention - enables multi-year operation on coin-cell batteries. |
| ADC Resolution | 10-bit SAR ADC with 8 input channels (6 external, 2 internal) and window comparator - supports analog sensor monitoring with autonomous threshold detection. |
| Timers | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC shadow) - enables concurrent PWM, capture, RTC, and time-stamped event logging. |
| USCI Modules | Two USCI peripherals: USCI_A1 (UART/IrDA/SPI), USCI_B1 (I²C/SPI) - allows simultaneous host communication (USB) and peripheral interfacing (sensor/I²C, radio/SPI). |
Pinout & Package
LQFP-48 package (7 mm × 7 mm), thermally enhanced with exposed pad recommended to be connected to VSS. Pin functions are defined by port mapping controller on Port 4 for USCI signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–7, 14–26, 29–36, 38–40, 42–48 | General-purpose I/O (P1.x–P6.x, PJ.x, PU.x) | Configurable digital I/O with Schmitt-trigger inputs, full/reduced drive strength, and interrupt capability per pin. |
| 5, 8–10, 11–13, 27–28, 41, 44 | Analog/Power supply (AVCC1, AVSS1, DVCC1, DVSS1, DVCC2, DVSS2, VBUS, VUSB, V18, AVSS2) | Dedicated analog and digital power domains; V18 supplies USB PHY core; VBUS enables VBUS sensing for USB attachment detection. |
| 38 (PU.0), 40 (PU.1), 39 (PUR) | USB differential pair + pullup resistor | DP/DM pins with integrated 1.5-kΩ pullup on PUR - enables USB enumeration without external components. |
| 14 (P1.0), 8 (P5.4), 9 (P5.5), 45–46 (P5.2–P5.3) | Clock inputs (ACLK, XIN/XOUT, XT2IN/XT2OUT) | Supports 32-kHz crystal (XT1), high-frequency crystals up to 32 MHz (XT2), and internal VLO/REFO sources. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB-PHY + power system | Removes external transceiver and LDOs - reduces BOM count and PCB area for USB-enabled edge nodes. |
| Port mapping controller (P4) | Enables runtime remapping of USCI_A1/B1 signals to P4.0–P4.5 - increases design flexibility without pinout changes. |
| Three-channel DMA | Offloads CPU during ADC sampling, USB transfers, and timer operations - improves real-time responsiveness and lowers active-mode current. |
| RTC with alarm and calibration | Provides accurate timekeeping and wake-up events independent of main CPU - essential for scheduled sensor reads and low-power scheduling. |
| Hardware multiplier (MPY32) | Executes 32-bit multiply in one cycle - accelerates filtering, FFT, and cryptographic operations in resource-constrained firmware. |
Applications
| USB Data Logger | Wireless Sensor Hub |
|---|---|
Use Scenario: Portable environmental monitor recording temperature, humidity, and light data every 10 seconds, then uploading batches via USB to a PC. IC Role / Device Role / Timing Role: Main MCU managing sensor I²C reads, timestamping with RTC, buffering in SRAM, and executing USB CDC class for mass storage emulation. Use Value: Integrated USB PHY and 2 KB USB SRAM eliminate external components; sub-2 µA LPM3 extends battery life to >3 years on CR2032. | Use Scenario: BLE-to-USB bridge aggregating data from multiple TI CC2652R nodes and forwarding to host PC for cloud upload. IC Role / Device Role / Timing Role: Protocol translator with USCI_B1 handling BLE module UART, USCI_A1 managing I²C sensors, and USB interface streaming consolidated packets. Use Value: Dual-USCI support enables concurrent BLE command parsing and sensor polling without CPU contention; DMA-accelerated USB transfers sustain 12 Mbps throughput. |
| Industrial Control Panel | Medical Diagnostic Tool |
Use Scenario: Front-panel controller for HVAC system with LCD, keypad, RS-485 gateway, and local USB firmware update port. IC Role / Device Role / Timing Role: System orchestrator running real-time control loop, driving segment LCD via GPIO, and servicing USB DFU requests during idle cycles. Use Value: Four 16-bit timers provide dedicated resources for PWM fan control, IR remote decoding, and USB SOF synchronization - no timer resource conflict. | Use Scenario: Handheld blood glucose meter with electrochemical sensor, OLED display, and USB charging/data export capability. IC Role / Device Role / Timing Role: Precision analog front-end controller using ADC window comparator for automatic strip insertion detection and USB HID interface for clinical data transfer. Use Value: 10-bit ADC with internal reference and VeREF+/- inputs ensures stable measurement across battery voltage range; LPM4.5 shutdown draws only 0.18 µA during storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5510IPT | 32 KB flash, 47 I/O pins, same USB/USCI/peripheral set - differs only in program memory size and I/O count. | Required when firmware exceeds 16 KB or additional GPIOs needed for expanded sensor/actuator interface. | Select MSP430F5510IPT if future firmware growth or board reuse demands headroom beyond 16 KB flash. |
| MSP430F5509IPT | 24 KB flash, identical 48-pin LQFP package, same peripheral complement and electrical specs - direct drop-in replacement with more flash. | Used where firmware size approaches 16 KB limit but no additional I/O required - avoids redesign while increasing margin. | Choose MSP430F5509IPT when upgrading from MSP430F5508IPT without changing PCB layout or signal routing. |
Compared with MSP430F5510IPT and MSP430F5509IPT, the MSP430F5508IPT delivers optimal cost-performance balance for fixed-function USB sensor nodes where 16 KB flash and 31 I/Os meet all requirements - eliminating over-provisioned resources without sacrificing USB or low-power capability.
Availability
MSP430F5508IPT is available at Aetrix Electronics and suitable for USB-connected data loggers, industrial sensor interfaces, and portable medical diagnostics requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5508IPT 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 company specializing in analog, embedded processing, and connectivity technologies with leadership in low-power design and industrial-grade reliability.
The MSP430F5508IPT belongs to the MSP430F5xx ultra-low-power MCU family, engineered for precision sensing, battery longevity, and seamless USB integration in portable measurement and IoT edge devices.
FAQ
What USB speed and device class does the MSP430F5508IPT support?
The MSP430F5508IPT supports full-speed USB 2.0 (12 Mbps) with an integrated PHY and complies with USB specification revision 2.0. It natively supports standard device classes including CDC (communication device), HID (human interface device), and MSC (mass storage) - enabling plug-and-play connectivity to Windows, macOS, and Linux hosts without custom drivers.
Does the MSP430F5508IPT require external components for USB functionality?
No, the MSP430F5508IPT integrates the USB transceiver, 3.3-V and 1.8-V regulators, USB-PLL, and internal 1.5-kΩ pullup resistor on PUR. Only passive ESD protection diodes and decoupling capacitors are required - no external PHY, level shifters, or discrete LDOs needed for basic USB operation.
How many analog input channels does the MSP430F5508IPT ADC support?
The MSP430F5508IPT features a 10-bit ADC (ADC10_A) with eight total input channels: six external analog inputs (A0–A5 on P6.x) and two internal references (VeREF+ and VeREF− on P5.0/P5.1). Channel selection is software-configurable via ADC10CTL1 register.
What low-power modes are available on the MSP430F5508IPT and their typical currents?
The MSP430F5508IPT offers five low-power modes: LPM3 (1.9 µA at 2.2 V, RTC active), LPM3.5 (1.4 µA, VLO active), LPM4 (1.1 µA, RAM retention only), and LPM4.5 (0.18 µA, complete shutdown). Wake-up from LPM3 to active mode occurs in under 5 µs - critical for responsive sensor wake-on-event designs.
Is the MSP430F5508IPT pin-compatible with other devices in the MSP430F55xx family?
Yes, the MSP430F5508IPT in LQFP-48 (PT) package shares identical pinout and signal mapping with MSP430F5509IPT and MSP430F5510IPT - enabling hardware reuse across flash variants. All three support the same USCI, timer, and USB pin assignments on P1–P6, PJ, and PU ports.
MSP430F5508IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- MSP430F5xx
- Packaging:
- Bulk
- 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:
MSP430F5508IPT FAQ
1.How can I place an order for MSP430F5508IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5508IPT 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 MSP430F5508IPT reliable?
The price and inventory of MSP430F5508IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5508IPT is usually 5 days.
3.What payment methods are accepted for MSP430F5508IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5508IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5508IPT?
MSP430F5508IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5508IPT 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 MSP430F5508IPT?
For technical support, including MSP430F5508IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5508IPT requirements.
6.How does Aetrix verify that MSP430F5508IPT is sourced from the original manufacturer or authorized distributors?
All MSP430F5508IPT 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 MSP430F5508IPT meets industry standards.
7.What is the process for return or replacement of MSP430F5508IPT?
All MSP430F5508IPT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5508IPT, 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 MSP430F5508IPT part is unused and in its original packaging.
Return procedure for MSP430F5508IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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