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Texas Instruments MSP430F5638IZQWT
- Part No.:
- MSP430F5638IZQWT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F5638IZQWT.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 113BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,280
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Product details
Overview
MSP430F5638IZQWT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 256 KB flash, 16 KB + 2 KB RAM, USB 2.0 full-speed interface, dual 12-bit DACs, 12-bit ADC with 16 channels (12 external, 4 internal), and four 16-bit timers - deployed in portable sensor systems and battery-powered metering applications.
For engineers reviewing the MSP430F5638IZQWT datasheet, MSP430F5638IZQWT pinout, MSP430F5638IZQWT application, or MSP430F5638IZQWT equivalent, key selection criteria include USB integration, RTC with battery backup, low-power mode wake-up time (3 µs), and MicroStar Junior BGA (113-pin) packaging for space-constrained embedded designs.
Technical Context
The MSP430F5638IZQWT implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling active-mode operation up to 20 MHz and sub-µA standby current (1.8 µA in LPM3). Its unified clock system integrates FLL stabilization, VLO and REFO internal sources, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal).
Peripherals include two USCI modules (USCI_A0/A1 supporting UART/IrDA/SPI; USCI_B0/B1 supporting I²C/SPI), hardware multiplier for 32-bit operations, 6-channel DMA, and an RTC_B module with alarm and supply-voltage backup switching - all managed via a flexible power-management system with integrated LDO and brownout detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 20-MHz max system clock |
| Memory | 256 KB flash + 16 KB + 2 KB RAM (USB SRAM usable as general-purpose when USB inactive) |
| ADC | 12-bit, 200 ksps, 16-channel (12 external, 4 internal), autoscan, shared reference |
| DAC | Dual 12-bit voltage-output DACs with synchronization and independent channel control |
| USB Interface | Full-speed (12 Mbps) USB 2.0 with integrated PHY, 3.3-V/1.8-V power system, and USB-PLL |
| Low-Power Modes | LPM3: 1.8 µA at 2.2 V; LPM3.5 (RTC active): 1.1 µA at 3.0 V; LPM4.5: 0.3 µA at 3.0 V |
| Wake-up Time | 3 µs typical from standby (LPM3) to active mode - critical for responsive sensor polling |
Pinout & Package
Package: MicroStar Junior™ BGA (113-pin), 7 mm × 7 mm body size, 0.5-mm ball pitch. Designed for high-density PCB layouts with thermal and electrical performance optimized for portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug input | Single-pin multifunction interface for reset assertion, NMI triggering, and 2-wire JTAG debugging |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz crystal for RTC and ACLK generation with internal load capacitance |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Enables up to 32-MHz system clock via external crystal or digital clock source |
| DVCC / DVSS / AVCC / AVSS | Digital/analog power and ground rails | Separate supply domains isolate noise-sensitive analog circuitry (ADC/DAC/REF) from digital switching |
| P6.6 / P6.7 / P7.6 / P7.7 | Analog output pins (DAC0/DAC1) | Dedicated DAC output channels with internal routing to minimize PCB trace coupling |
| DP / DM | USB differential data lines | Integrated ESD protection and impedance-controlled routing compatible with USB 2.0 full-speed signaling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY | Eliminates need for external transceiver; supports eight endpoints and integrated 3.3-V/1.8-V power regulation |
| RTC_B with battery backup | Retains timekeeping during main power loss using dedicated VBAT rail and automatic supply switching |
| Dual synchronized 12-bit DACs | Enables simultaneous analog waveform generation (e.g., dual-channel sensor excitation or audio tone synthesis) |
| Hardware multiplier (MPY32) | Executes 32-bit multiply-accumulate in single cycle - accelerates filtering, FFT, and control loop math |
| 6-channel DMA controller | Offloads CPU from peripheral data movement (e.g., ADC-to-RAM, USB buffer transfers), reducing active-mode duration |
Applications
| Portable Digital Multimeter | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Handheld instrument measuring voltage, current, resistance, and temperature with autoranging and LCD display. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, DAC-based reference generation, USB firmware updates, and RTC-stamped measurement logging. Use Value: Ultra-low standby current (1.8 µA) extends battery life; integrated DACs eliminate external precision references; USB enables field calibration without proprietary tools. |
Use Scenario: Wall-mounted HVAC controller with ambient/sensor fusion, wireless connectivity, and energy usage reporting. IC Role / Device Role / Timing Role: Central MCU coordinating temperature/humidity sensing, relay actuation, display refresh, and scheduled communication via USB or serial interface. Use Value: RTC_B with battery backup maintains accurate scheduling during power outages; dual DACs drive analog valve position feedback; 74 GPIO support multi-sensor expansion. |
| Industrial Sensor Node | USB-Capable Remote Control Hub |
|
Use Scenario: Battery-powered node collecting vibration, pressure, and humidity data for predictive maintenance in factory environments. IC Role / Device Role / Timing Role: Low-power data acquisition engine performing timed ADC scans, on-chip signal conditioning, and USB bulk transfer of buffered logs. Use Value: 3 µs wake-up enables rapid response to event-triggered sampling; 12-bit ADC with internal reference ensures stable measurements across temperature; USB simplifies firmware and configuration updates. |
Use Scenario: Consumer IR/RF remote hub aggregating commands from multiple remotes and relaying via USB to PC or media center. IC Role / Device Role / Timing Role: Protocol translator and USB device controller handling IrDA encoding/decoding, SPI-based RF transceiver interfacing, and HID-class USB enumeration. Use Value: Integrated USCI_A modules natively support IrDA physical layer; USB endpoint architecture supports composite device descriptors for keyboard/mouse emulation; LPM3.5 mode preserves RTC while drawing only 1.1 µA. |
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 |
|---|---|---|---|
| MSP430F5636IZQWT | 128 KB flash, same 113-pin ZQW package, identical peripherals except reduced flash capacity | Suitable for cost-sensitive designs where firmware footprint < 128 KB eliminates need for larger memory | Select when application code size fits within 128 KB and BGA footprint must be retained |
| MSP430F5638IPZ | LQFP-100 package (14 mm × 14 mm), same flash/RAM/peripherals, no ZQW package discontinuation status | Preferred for prototyping, manual assembly, or designs requiring easier rework and thermal inspection | Choose for development flexibility or production where BGA reflow capability is unavailable |
Compared with MSP430F5638IZQWT, MSP430F5636IZQWT reduces flash by 128 KB but retains identical USB, DAC, and RTC functionality in the same MicroStar Junior BGA; MSP430F5638IPZ offers identical silicon in a larger, more manufacturable LQFP package - both serve as validated alternatives when memory or packaging constraints shift.
Availability
MSP430F5638IZQWT is available at Aetrix Electronics and suitable for portable sensor systems, smart thermostats, and industrial data loggers requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F5638IZQWT 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 delivering analog and embedded processing solutions, with leadership in low-power microcontrollers and precision analog ICs.
The MSP430F5638IZQWT belongs to the MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated measurement and sensing applications demanding extended runtime, integrated analog front-ends, and USB connectivity.
FAQ
What is the package type and ball count for MSP430F5638IZQWT?
The MSP430F5638IZQWT uses a MicroStar Junior™ BGA package with 113 solder balls arranged in a 7 mm × 7 mm body. This high-density interconnect solution supports fine-pitch PCB routing and thermal dissipation requirements for compact portable electronics. The ZQW suffix explicitly denotes this BGA variant per TI's official ordering nomenclature.
Does MSP430F5638IZQWT support USB device functionality without external components?
Yes, MSP430F5638IZQWT integrates a full-speed USB 2.0 PHY, USB-PLL, and dual 3.3-V/1.8-V power regulators - enabling standalone USB device operation with only passive termination resistors (1.5-kΩ pull-up on DP) required. No external transceiver, level shifter, or voltage regulator is needed for standard USB enumeration and data transfer.
What are the low-power mode current specifications for MSP430F5638IZQWT at 3.0 V?
At 3.0 V, MSP430F5638IZQWT draws 1.1 µA in LPM3.5 (RTC active with crystal), 1.8 µA in LPM3 (standby with watchdog and RAM retention), and 0.3 µA in LPM4.5 (full shutdown). These values are measured under typical conditions per SLAS650G and enable multi-year battery life in always-on sensor nodes with periodic wake-up intervals.
How many analog input channels does the 12-bit ADC in MSP430F5638IZQWT support?
The MSP430F5638IZQWT features a 12-bit ADC (ADC12_A) with 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, VCC/2, VeREF+, and VMID). Channel selection, sample timing, and autoscan sequencing are fully configurable in hardware without CPU intervention.
Is MSP430F5638IZQWT pin-compatible with other devices in the MSP430F563x family?
No - MSP430F5638IZQWT shares the same MicroStar Junior BGA (ZQW) footprint with MSP430F5636IZQWT and MSP430F5635IZQWT, but it is not pin-compatible with LQFP-100 variants like MSP430F5638IPZ due to differing pin counts and signal mappings. Direct substitution requires matching package type and verifying peripheral register compatibility per device-specific errata.
MSP430F5638IZQWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 113-VFBGA
- Series:
- MSP430F5xx
- 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:
- 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:
- 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:
MSP430F5638IZQWT FAQ
1.How can I place an order for MSP430F5638IZQWT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5638IZQWT 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 MSP430F5638IZQWT reliable?
The price and inventory of MSP430F5638IZQWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5638IZQWT is usually 5 days.
3.What payment methods are accepted for MSP430F5638IZQWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5638IZQWT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5638IZQWT?
MSP430F5638IZQWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5638IZQWT 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 MSP430F5638IZQWT?
For technical support, including MSP430F5638IZQWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5638IZQWT requirements.
6.How does Aetrix verify that MSP430F5638IZQWT is sourced from the original manufacturer or authorized distributors?
All MSP430F5638IZQWT 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 MSP430F5638IZQWT meets industry standards.
7.What is the process for return or replacement of MSP430F5638IZQWT?
All MSP430F5638IZQWT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5638IZQWT, 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 MSP430F5638IZQWT part is unused and in its original packaging.
Return procedure for MSP430F5638IZQWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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