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Texas Instruments MSP430F5638IPZR
- Part No.:
- MSP430F5638IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F5638IPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:285
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Product details
Overview
MSP430F5638IPZR 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 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 MSP430F5638IPZR datasheet, MSP430F5638IPZR pinout, MSP430F5638IPZR application, or MSP430F5638IPZR equivalent, key selection criteria include USB PHY integration, LPM3.5 RTC retention current (1.1 µA), 74 GPIO count, 3 µs wake-up time from standby, and LQFP-100 package compatibility with industrial PCB layouts.
Technical Context
The MSP430F5638IPZR implements a CPUXV2 core with constant generators and 16-bit RISC architecture, operating up to 20 MHz via FLL-stabilized DCO or external crystals (XT1 up to 32 kHz, XT2 up to 32 MHz). Its unified clock system supports simultaneous ACLK/SMCLK/MCLK domains with programmable LDO core regulation.
Peripherals are tightly coupled to a 6-channel DMA controller and interrupt-capable I/O ports (P1–P9, PJ), enabling autonomous analog acquisition (ADC12_A autoscan), synchronized dual DAC output, and full-speed USB communication with integrated 3.3-V/1.8-V power system and USB-PLL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC with 16-bit registers and hardware multiplier for 32-bit operations |
| Flash / RAM | 256 KB flash program memory; 16 KB main RAM + 2 KB USB SRAM usable as general-purpose RAM |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V power system, USB-PLL, and eight endpoints (4 IN + 4 OUT) |
| ADC/DAC | 12-bit ADC12_A with 200 ksps, 16-channel autoscan (12 ext/4 int); dual 12-bit DAC12_A with voltage output and synchronization |
| Low-Power Modes | LPM3.5 (RTC active, crystal running): 1.1 µA at 3.0 V; LPM4.5 (shutdown): 0.3 µA at 3.0 V; wake-up in 3 µs from LPM3 |
| Timers & USCI | Four 16-bit timers (TA0: 5 CC, TA1/TA2: 3 CC each, TB0: 7 CC); two USCI_A (UART/IrDA/SPI) and two USCI_B (I²C/SPI) |
| I/O Count | 74 GPIO pins across P1–P9 and PJ ports, with Schmitt-trigger inputs and configurable drive strength |
Pinout & Package
LQFP-100 package (14 mm × 14 mm), thermally enhanced with exposed thermal pad; 100-pin quad flat pack with standard 0.5-mm pitch, compatible with IPC-7351B footprint.
| 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 event capture, and 2-wire JTAG debugging |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Connects 32.768-kHz watch crystal for ACLK generation and RTC operation |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Supports up to 32-MHz crystal or external clock source for MCLK/SMCLK |
| DVCC1 / DVCC2 / AVCC1 | Digital and analog supply rails | DVCC1/DVCC2 power digital core and I/O banks; AVCC1 supplies ADC/DAC reference and analog circuitry |
| P6.6 / P6.7 / P7.6 / P7.7 | DAC output terminals | Four dedicated pins supporting dual 12-bit DAC voltage outputs with independent channel control |
| DP / DM | USB differential data pair | Full-speed USB 2.0 physical layer interface with integrated ESD protection and biasing |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB-PHY and power system | Eliminates external transceiver and LDOs; enables self-powered USB device design with single 3.3-V rail |
| RTC_B with battery backup support | Maintains real-time calendar and alarm functions during main power loss using VBAT pin and internal switch |
| Flexible low-power management | Programmable LDO core voltage, SVS/SVM monitoring, brownout reset, and five distinct low-power modes |
| Dual synchronized 12-bit DACs | Enables precise analog waveform generation (e.g., motor phase control) with channel-to-channel timing alignment |
| 12-bit ADC with internal reference options | Supports 1.5-V, 2.0-V, or 2.5-V internal references - removes need for external precision voltage sources in sensor front-ends |
Applications
| Analog Sensor Hub | Digital Motor Control |
|---|---|
|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure via analog sensors. IC Role / Device Role / Timing Role: Central MCU executing sensor calibration, ADC oversampling, USB data streaming, and RTC timestamping. Use Value: 1.1 µA LPM3.5 current extends 10-year battery life; dual DACs generate precision bias voltages for sensor excitation. |
Use Scenario: Closed-loop BLDC motor driver in HVAC blower with Hall-effect feedback and PWM commutation. IC Role / Device Role / Timing Role: Real-time controller managing 3-phase PWM generation, current sensing, and thermal protection. Use Value: Four 16-bit timers with 7+ capture/compare registers enable independent high-resolution PWM per phase; 3 µs wake-up ensures fast fault response. |
| Smart Thermostat Interface | Hand-Held Multimeter |
|
Use Scenario: Residential thermostat with touch UI, wireless comms, and ambient sensor fusion. IC Role / Device Role / Timing Role: Main application processor handling display refresh, button scan, USB firmware updates, and sensor polling. Use Value: 74 GPIO support matrix keypad, LCD segment drivers, and multiple I²C peripherals; USB enables field calibration without proprietary tools. |
Use Scenario: Portable multimeter measuring AC/DC voltage, current, resistance, and continuity with auto-ranging. IC Role / Device Role / Timing Role: Signal acquisition engine performing ADC sequencing, DAC-based reference scaling, and display buffering. Use Value: 12-bit ADC with 16-channel autoscan captures multi-parameter readings in single conversion burst; internal 2.5-V reference ensures ±0.1% measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5637IPZR | 192 KB flash, identical peripheral set (USB, DACs, ADC, timers), same LQFP-100 package | Reduced code space suitable for firmware with smaller feature set; no change in analog or USB functionality | Select when application firmware fits within 192 KB and cost optimization is prioritized over future scalability |
| MSP430F5636IPZR | 128 KB flash, identical peripheral set and package; otherwise electrically and functionally pin-compatible | Targeted at cost-sensitive metering where full 256 KB is unnecessary; retains all analog and USB capabilities | Choose for high-volume production where flash margin is >50% and BOM cost reduction is critical |
Compared with MSP430F5637IPZR and MSP430F5636IPZR, the MSP430F5638IPZR provides maximum on-chip flash headroom for complex USB device stacks and firmware-over-the-air updates while maintaining identical low-power behavior, analog performance, and pinout - making it the optimal choice for scalable, long-lifecycle designs.
Availability
MSP430F5638IPZR is available at Aetrix Electronics and suitable for analog sensor systems, digital motor control, and hand-held meters requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430F5638IPZR 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, embedded processing, and connectivity solutions with emphasis on energy efficiency and system-level innovation.
The MSP430F5638IPZR belongs to the MSP430F5xx ultra-low-power MCU family, engineered specifically for battery-operated measurement and sensing applications demanding extended runtime, integrated analog peripherals, and USB connectivity without external support components.
FAQ
What is the maximum operating frequency of the MSP430F5638IPZR?
The MSP430F5638IPZR supports a maximum system clock (MCLK) frequency of 20 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization or through external high-frequency crystals up to 32 MHz on the XT2 oscillator. This frequency enables real-time signal processing and high-speed USB packet handling while maintaining ultra-low-power operation in active mode.
Does the MSP430F5638IPZR support USB device functionality without external components?
Yes, the MSP430F5638IPZR integrates a full-speed USB 2.0 PHY, USB-PLL, and dedicated 3.3-V/1.8-V power system - allowing standalone USB device operation from a single 3.3-V supply. No external transceiver, voltage regulators, or clock sources are required, reducing BOM count and PCB area for compact USB-enabled designs.
How many analog input channels does the MSP430F5638IPZR ADC support?
The MSP430F5638IPZR features the ADC12_A module with 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, VCC/2, VeREF+, and VMID). Channel selection, sampling sequence, and reference configuration are fully programmable in autoscan mode for unattended multi-sensor acquisition.
What low-power modes are available on the MSP430F5638IPZR, and what is the lowest current draw?
The MSP430F5638IPZR offers five low-power modes (LPM0–LPM4.5). The lowest active-retention mode is LPM3.5 (RTC active with 32-kHz crystal), drawing 1.1 µA at 3.0 V. The absolute lowest is LPM4.5 (full shutdown), consuming just 0.3 µA at 3.0 V - ideal for long-term storage or battery-backed RTC applications.
Is the MSP430F5638IPZR pin-compatible with other devices in the MSP430F563x family?
Yes, the MSP430F5638IPZR in the LQFP-100 (PZ) package is pin-compatible with MSP430F5637IPZR and MSP430F5636IPZR - sharing identical pin functions, electrical characteristics, and mechanical footprint. This allows direct substitution within the same PCB layout when flash size requirements differ, simplifying design reuse and variant management.
MSP430F5638IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F5xx
- 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:
- 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:
MSP430F5638IPZR FAQ
1.How can I place an order for MSP430F5638IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5638IPZR 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 MSP430F5638IPZR reliable?
The price and inventory of MSP430F5638IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5638IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F5638IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5638IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5638IPZR?
MSP430F5638IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5638IPZR 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 MSP430F5638IPZR?
For technical support, including MSP430F5638IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5638IPZR requirements.
6.How does Aetrix verify that MSP430F5638IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F5638IPZR 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 MSP430F5638IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F5638IPZR?
All MSP430F5638IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5638IPZR, 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 MSP430F5638IPZR part is unused and in its original packaging.
Return procedure for MSP430F5638IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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