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Texas Instruments MSP430F5438AIZQWR
- Part No.:
- MSP430F5438AIZQWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F5438AIZQWR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 113BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,138
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Product details
Overview
MSP430F5438AIZQW from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 256 KB flash, 16 KB RAM, 12-bit ADC (14 external + 2 internal channels), four USCI modules (dual UART/IrDA/SPI + dual I²C/SPI), three 16-bit timers (TA0/TA1/TB0), RTC, hardware multiplier, and DMA-designed for battery-powered sensor systems and portable measurement devices.
For engineers reviewing the MSP430F5438AIZQW datasheet, MSP430F5438AIZQW pinout, MSP430F5438AIZQW application, or MSP430F5438AIZQW equivalent, key selection criteria include standby current (1.7 µA in LPM3), wake-up time (3.5 µs), MicroStar Junior BGA-113 package compatibility, and integrated low-power clock system with FLL, VLO, and REFO.
Technical Context
The MSP430F5438AIZQW implements a CPUXV2 core with constant generators and extended memory addressing, supporting up to 25-MHz system clock via digitally controlled oscillator (DCO) with FLL stabilization. Its unified clock system provides independent ACLK, SMCLK, and MCLK domains sourced from XT1 (32-kHz crystal), XT2 (up to 32 MHz), VLO, or REFO.
Power management includes a fully integrated LDO with programmable core voltage, supply supervision (SVM/SVS), brownout detection, and five low-power modes (LPM0–LPM4.5). Peripheral integration features 87 GPIOs, 3-channel DMA, and RTC with alarm capability-all optimized for deterministic real-time operation under sub-2 µA standby conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and extended memory addressing for high code efficiency |
| Flash / RAM | 256 KB flash (in-system programmable, 100k-cycle endurance) and 16 KB SRAM with full retention in LPM3/LPM4 |
| ADC12_A | 12-bit SAR ADC with 200 ksps sampling, autoscan, internal reference, and 14 external + 2 internal analog inputs |
| USCI Modules | Four universal serial interfaces: two USCI_A (UART/IrDA/SPI) and two USCI_B (I²C/SPI), each independently configurable |
| Low-Power Modes | LPM3: 1.7 µA @ 3.0 V (RTC active, full RAM retention); LPM4.5: 0.1 µA @ 3.0 V (zero-power shutdown) |
| Wake-up Time | 3.5 µs typical from LPM3 to active mode-enables rapid response to sensor interrupts without sacrificing energy efficiency |
| Package | MicroStar Junior™ BGA-113 (7 mm × 7 mm), 0.5-mm pitch, RoHS-compliant, thermal pad exposed on underside |
Pinout & Package
MicroStar Junior™ BGA-113 package (7 mm × 7 mm, 0.5-mm pitch) with thermal pad. Pin functions mapped per TI SLAS655H Rev. May 2021, Figure 7-3 and Table 7-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Multi-function I/O | Primary ACLK output (divisible by 1–32); TA0 clock input; general-purpose interrupt-capable GPIO |
| P2.7/ADC12CLK/DMAE0 | Peripheral signal | Dedicated ADC conversion clock output; DMA external trigger input for synchronized data acquisition |
| P7.0/XIN & P7.1/XOUT | Clock interface | Low-frequency crystal oscillator terminals for 32-kHz RTC timing with automatic gain control |
| P5.0/A8/VREF+/VeREF+ | Analog interface | ADC channel A8 input; selectable as internal reference output or external reference input (2.5 V typical) |
| RST/NMI/SBWTDIO | System control | Reset/NMI input; JTAG/Spy-Bi-Wire debug interface bidirectional data line |
| VCORE | Power domain | Regulated core voltage output from integrated LDO-must be decoupled locally for stable 1.8–3.0 V operation |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated LDO | Programmable core voltage (1.8–3.0 V) eliminates need for external regulator-reduces BOM count and PCB area |
| Hardware multiplier (MPY32) | Supports 32-bit signed/unsigned multiply, divide, and accumulate operations in single-cycle execution-accelerates math-intensive sensor algorithms |
| Real-time clock (RTC_A) | Calendar mode with alarm, battery-backup capability, and direct ACLK/REFO/VLO clock source selection-enables autonomous timekeeping during LPM3 |
| Three independent 16-bit timers | TA0 (5 CC), TA1 (3 CC), TB0 (7 CC) with capture/compare, PWM, and interval timing-supports multi-signal motor control or sensor synchronization |
| USCI dual-protocol support | Each USCI_A supports UART with auto-baud detection + IrDA encoding; each USCI_B supports I²C master/slave + SPI-enables mixed-interface sensor hubs |
Applications
| Smart Sensor Node | Digital Thermostat |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Central MCU executing sensor fusion, local decision logic, and low-duty-cycle wireless transmission. Use Value: 1.7 µA LPM3 current extends 10-year battery life; RTC_A enables precise wake-up scheduling; ADC12_A autoscan reduces firmware overhead. | Use Scenario: Residential HVAC controller requiring precise temperature regulation, user interface, and communication with smart home gateways. IC Role / Device Role / Timing Role: Main controller managing thermistor readings, relay actuation, display updates, and I²C-connected touch panel. Use Value: Integrated LDO simplifies power design; USCI_B0/B1 enable concurrent I²C bus control; 87 GPIOs support direct LED/button interfacing. |
| Hand-Held Meter | Remote Industrial Controller |
Use Scenario: Portable multimeter with analog front-end, LCD display, and USB/UART data logging. IC Role / Device Role / Timing Role: Signal acquisition processor with precision ADC, display driver timing, and serial interface co-processor. Use Value: 12-bit ADC with internal reference ensures ±1 LSB INL across temperature; 3.5 µs wake-up enables responsive button press handling. | Use Scenario: DIN-rail mounted controller acquiring analog process signals (4–20 mA), running PID loops, and communicating via RS-485. IC Role / Device Role / Timing Role: Real-time control engine with deterministic timer interrupts, isolated UART interface, and watchdog supervision. Use Value: TB0's 7 capture/compare registers support simultaneous PWM generation and input capture for encoder feedback; LPM4.5 enables safe firmware update mode. |
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 |
|---|---|---|---|
| MSP430F5438AIPZ | LQFP-100 package (14 mm × 14 mm); identical core, peripherals, and electrical specs | Better suited for prototyping, manual soldering, or designs requiring accessible debug pins | Select when board space allows larger footprint and hand assembly is preferred over BGA reflow. |
| MSP430F5436AIZQW | 192 KB flash (vs. 256 KB); otherwise identical pinout, package, and peripheral set | Lower-cost option where firmware size < 192 KB and feature parity is maintained | Select when application firmware fits within 192 KB and cost sensitivity outweighs flash headroom. |
Compared with MSP430F5438AIPZ, the MSP430F5438AIZQW offers identical functionality in a space-constrained MicroStar Junior BGA package-ideal for compact, high-volume production-while MSP430F5436AIZQW provides a flash-reduced alternative with no layout change required.
Availability
MSP430F5438AIZQW is available at Aetrix Electronics and suitable for smart sensor nodes, digital thermostats, hand-held meters, and remote industrial controllers requiring stable component supply, long-term lifecycle support, and qualified BGA procurement.
Supply support for MSP430F5438AIZQW 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, precision analog, and power management ICs.
The MSP430F5438AIZQW belongs to TI's MSP430F5xx ultra-low-power MCU family, engineered specifically for extended-battery-life portable measurement and sensing applications where sub-µA standby and fast wake-up are critical.
FAQ
What is the maximum system clock frequency supported by the MSP430F5438AIZQW?
The MSP430F5438AIZQW supports a maximum system clock frequency of 25 MHz, achieved using the integrated digitally controlled oscillator (DCO) with FLL stabilization. This frequency is confirmed in the device's functional block diagram and electrical specifications table (Section 8.20, DCO Frequency), and applies directly to the MSP430F5438AIZQW variant in MicroStar Junior BGA packaging.
Does the MSP430F5438AIZQW include hardware-based cryptographic acceleration?
No, the MSP430F5438AIZQW does not include dedicated cryptographic hardware accelerators such as AES or SHA engines. Its security features are limited to basic memory protection via information memory segment locking and JTAG/Spy-Bi-Wire access control. For secure boot or encrypted communication, external components or software-based libraries must be used with the MSP430F5438AIZQW.
What is the pin count and ball pitch of the MSP430F5438AIZQW package?
The MSP430F5438AIZQW uses a MicroStar Junior™ BGA package with 113 balls arranged in a 7 mm × 7 mm body size and 0.5-mm ball pitch. This is explicitly documented in TI's SLAS655H datasheet, Section "Device Information", and confirmed in Figure 7-3 (pinout diagram) and mechanical drawings.
Can the MSP430F5438AIZQW operate from a single 1.8-V supply?
Yes, the MSP430F5438AIZQW operates across a supply voltage range of 1.8 V to 3.6 V, as specified in Section 1 "Features" and Section 8.3 "Recommended Operating Conditions". At 1.8 V, it maintains full functionality-including 256 KB flash execution, 12-bit ADC operation, and USCI communication-at reduced maximum clock frequency (typically ≤ 8 MHz).
Is the MSP430F5438AIZQW pin-compatible with the MSP430F5438AIPZ?
No, the MSP430F5438AIZQW (MicroStar Junior BGA-113) is not pin-compatible with the MSP430F5438AIPZ (LQFP-100). They share identical peripheral functionality and register mapping but differ in package type, pin count, and physical layout. Migration requires PCB redesign; however, firmware is fully compatible due to identical silicon revision and memory map.
MSP430F5438AIZQWR 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:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 87
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5438AIZQWR FAQ
1.How can I place an order for MSP430F5438AIZQWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5438AIZQWR 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 MSP430F5438AIZQWR reliable?
The price and inventory of MSP430F5438AIZQWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5438AIZQWR is usually 5 days.
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MSP430F5438AIZQWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5438AIZQWR 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 MSP430F5438AIZQWR?
For technical support, including MSP430F5438AIZQWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5438AIZQWR requirements.
6.How does Aetrix verify that MSP430F5438AIZQWR is sourced from the original manufacturer or authorized distributors?
All MSP430F5438AIZQWR 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 MSP430F5438AIZQWR meets industry standards.
7.What is the process for return or replacement of MSP430F5438AIZQWR?
All MSP430F5438AIZQWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5438AIZQWR, 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 MSP430F5438AIZQWR part is unused and in its original packaging.
Return procedure for MSP430F5438AIZQWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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