My Inquiry
My Account
Texas Instruments MSP430F5638IPZ
- Part No.:
- MSP430F5638IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F5638IPZ.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:301
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F5638IPZ from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 256 KB flash, 16 KB + 2 KB RAM, integrated USB 2.0 PHY, dual 12-bit DACs, 12-bit ADC with 16 channels (12 external), four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), and RTC with battery backup - deployed in portable sensor systems and digital motor control requiring sub-2 µA standby current.
For engineers reviewing the MSP430F5638IPZ datasheet, MSP430F5638IPZ pinout, MSP430F5638IPZ application, or MSP430F5638IPZ equivalent, key selection criteria include USB integration without external transceiver, LPM3.5 RTC operation at 1.1 µA, 74 GPIOs in LQFP-100, and hardware multiplier support for real-time signal processing.
Technical Context
The MSP430F5638IPZ implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system including FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management integrates an on-chip LDO with programmable core voltage, SVS/SVM monitoring, and brownout reset.
Peripherals are memory-mapped and synchronized via 6-channel DMA; USB subsystem includes integrated 3.3-V/1.8-V power system, USB-PLL, and eight endpoints. The ADC12_A supports autoscan across 16 inputs with internal reference options (1.5 V/2.0 V/2.5 V), while DAC12_A provides synchronized dual-channel voltage output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and 20-MHz max system clock - enables high code efficiency and deterministic real-time execution. |
| Memory | 256 KB flash + 16 KB + 2 KB RAM - supports large firmware images and USB buffer allocation without external memory. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V power system, and USB-PLL - eliminates need for external USB transceiver or level shifters. |
| ADC | 12-bit ADC12_A with 200 ksps, 16-channel autoscan (12 external + 4 internal), selectable internal references - enables simultaneous multi-sensor acquisition with minimal CPU overhead. |
| DAC | Dual 12-bit DAC12_A with synchronization and voltage output - supports precise analog waveform generation or feedback control signals. |
| Low-Power Modes | LPM3.5 (RTC active): 1.1 µA at 3.0 V; LPM4.5 (shutdown): 0.3 µA at 3.0 V - extends battery life in always-on sensing applications. |
| GPIO Count | 74 I/O pins in LQFP-100 package - provides ample routing flexibility for complex peripheral interfacing and multiplexed signal paths. |
Pinout & Package
LQFP-100 package (14 mm × 14 mm) with exposed thermal pad; 100-pin square grid, 0.5-mm pitch, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug input | Single-pin multifunction interface for device initialization, fault recovery, and in-circuit debugging without dedicated JTAG header. |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz crystal for RTC accuracy; internal load caps configurable to eliminate external components. |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Enables up to 32-MHz system clock with external crystal; bypass mode available for internal DCO-only operation. |
| DVCC1 / DVCC2 / AVCC1 | Digital and analog supply rails | Separate power domains isolate noise-sensitive analog circuitry (AVCC1) from digital switching (DVCC1/DVCC2). |
| P6.6 / P6.7 / P7.6 / P7.7 | DAC0 / DAC1 output pins | Dedicated analog outputs with rail-to-rail capability - directly drive sensors, op-amp inputs, or calibration references. |
| DP / DM | USB differential data lines | Integrated full-speed USB transceiver I/O - requires only 27-Ω series resistors and 1.5-kΩ pull-up on DP per USB spec. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB-PHY and power system | Eliminates external USB transceiver and voltage regulators - reduces BOM count and PCB area in portable USB devices. |
| Hardware multiplier (MPY32) | Completes 32-bit operations in one cycle - accelerates FFT, PID, and sensor fusion algorithms without software overhead. |
| Unified clock system with FLL | Stabilizes DCO to ±1% accuracy using XT1 or XT2 reference - enables fast wake-up from LPM3 with no crystal startup delay. |
| 6-channel DMA controller | Transfers ADC samples, USB packets, or UART data without CPU intervention - preserves low-power modes during bulk data movement. |
| RTC_B with battery backup | Maintains timekeeping and alarm functions during main power loss using VBAT pin - supports tamper-proof logging and scheduled wake-up. |
Applications
| Analog Sensor Hub | Digital Motor Control |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog front-end. IC Role / Device Role / Timing Role: Central MCU managing sensor excitation, ADC sampling, USB data streaming, and RTC-timed sleep/wake cycles. Use Value: LPM3.5 mode draws only 1.1 µA while maintaining accurate RTC, enabling multi-year operation on coin-cell battery. |
Use Scenario: Closed-loop BLDC motor driver with Hall-effect feedback and PWM generation. IC Role / Device Role / Timing Role: Real-time controller executing commutation logic, current sensing, and fault protection with sub-µs timer resolution. Use Value: Four 16-bit timers with 3/5/7 capture/compare registers enable independent PWM channels and precise edge-aligned timing for six-step control. |
| USB-Capable Remote Control | Programmable Digital Thermostat |
Use Scenario: IR remote with USB reprogramming and firmware updates via host PC. IC Role / Device Role / Timing Role: USB device endpoint handling HID-class enumeration and command parsing while managing IR transmit/receive logic. Use Value: Integrated USB-PLL and 3.3-V/1.8-V power system allow direct connection to USB bus without external regulators or clock sources. |
Use Scenario: Wall-mounted HVAC controller with ambient temperature sensing, display interface, and relay actuation. IC Role / Device Role / Timing Role: System-on-chip managing thermistor ADC conversion, LCD segment driving, RTC-based scheduling, and safety watchdog. Use Value: Dual 12-bit DACs generate precise reference voltages for analog comparator thresholds and calibration offsets. |
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 |
|---|---|---|---|
| MSP430F5637IPZ | 192 KB flash, identical peripherals and pinout - lacks 64 KB flash capacity of MSP430F5638IPZ. | Suitable for firmware images under 192 KB; same USB/ADC/DAC feature set and power profile. | Select when firmware size permits and cost optimization is prioritized over future code growth headroom. |
| MSP430F5636IPZ | 128 KB flash, identical peripherals and pinout - reduced flash and same RAM configuration as MSP430F5638IPZ. | Valid for smaller applications with constrained memory footprint; retains full USB and analog subsystem functionality. | Choose for cost-sensitive designs where flash requirement is ≤128 KB and long-term firmware scalability is not required. |
Compared with MSP430F5637IPZ and MSP430F5636IPZ, the MSP430F5638IPZ provides maximum flash headroom (256 KB) for complex USB device stacks and sensor fusion algorithms while maintaining identical low-power performance, peripheral set, and LQFP-100 pin compatibility - making it the optimal choice for scalable, feature-rich embedded systems.
Availability
MSP430F5638IPZ is available at Aetrix Electronics and suitable for analog sensor systems, digital motor control, and USB-reprogrammable remote controls requiring stable component supply across industrial and medical OEM programs.
Supply support for MSP430F5638IPZ 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.
The MSP430F5638IPZ belongs to the MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated measurement and sensing applications demanding extended runtime, integrated analog precision, and USB connectivity without external components.
FAQ
What is the maximum system clock frequency supported by the MSP430F5638IPZ?
The MSP430F5638IPZ supports a maximum system clock frequency of 20 MHz. This is achieved using the integrated digitally controlled oscillator (DCO) stabilized by the FLL loop with either the internal REFO or external XT2 crystal (up to 32 MHz). The 20-MHz limit ensures reliable operation within specified voltage and temperature ranges per the SLAS650G datasheet.
Does the MSP430F5638IPZ include an integrated USB transceiver?
Yes, the MSP430F5638IPZ includes a full-speed USB 2.0 physical layer (PHY), integrated USB-PLL, and dedicated 3.3-V and 1.8-V USB power system. It requires only standard USB-series resistors (27 Ω on DP/DM) and a 1.5-kΩ pull-up resistor on DP for device enumeration - no external transceiver or voltage regulators are needed.
How many analog input channels does the ADC12_A module support on the MSP430F5638IPZ?
The ADC12_A module on the MSP430F5638IPZ supports 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, VCC/2, VeREF+, and VR+). Channel selection is managed via the ADC12MCTLx registers, and autoscan mode allows sequential conversion without CPU intervention.
What low-power modes are available on the MSP430F5638IPZ, and what is the lowest current draw?
The MSP430F5638IPZ offers five low-power modes (LPM0–LPM4.5). The lowest active-retention mode is LPM3.5 (RTC active with crystal), drawing 1.1 µA at 3.0 V. The absolute minimum is LPM4.5 (full shutdown), consuming 0.3 µA at 3.0 V - both measured with RTC enabled and all other peripherals disabled per SLAS650G Section 8.5.
Is the MSP430F5638IPZ pin-compatible with other devices in the MSP430F563x family?
Yes, the MSP430F5638IPZ is pin-compatible with all LQFP-100 variants in the MSP430F563x family, including MSP430F5637IPZ and MSP430F5636IPZ. Pin functions, power domains, and peripheral mappings match exactly across these devices - enabling drop-in replacement where flash size requirements align with the target application.
MSP430F5638IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F5xx
- Packaging:
- Tray
- 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:
MSP430F5638IPZ FAQ
1.How can I place an order for MSP430F5638IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5638IPZ 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 MSP430F5638IPZ reliable?
The price and inventory of MSP430F5638IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5638IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F5638IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5638IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5638IPZ?
MSP430F5638IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5638IPZ 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 MSP430F5638IPZ?
For technical support, including MSP430F5638IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5638IPZ requirements.
6.How does Aetrix verify that MSP430F5638IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F5638IPZ 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 MSP430F5638IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F5638IPZ?
All MSP430F5638IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5638IPZ, 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 MSP430F5638IPZ part is unused and in its original packaging.
Return procedure for MSP430F5638IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F5638IPZ Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
