Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products Integrated Circuits (ICs)Embedded - Microcontrollers~~MSP430F6636IPZR~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

MSP430F6636IPZR - Texas Instruments

Name: Texas Instruments MSP430F6636IPZR
Brand: Texas Instruments
SKU: MSP430F6636IPZR
Price: 4.754 USD
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: MSP430F6636IPZR

Manufacturer: Texas Instruments

Allelco Part Number: 32D-MSP430F6636IPZR

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 6,388 pcs available, New & Original

Parts Description: IC MCU 16BIT 128KB FLASH 100LQFP

Package: 100-LQFP (14x14)

Data sheet: MSP430F6636IPZR.pdf

HTML Datasheet
MSP430F663x Datasheet.pdf

PCN Design/Specification
MSP430F54yy/F6yy Datasheet Update 26/Aug/2013.pdf Mult Dev Datasheet Rev 17/Dec/2018.pdf

PCN Assembly/Origin
2.73KHz.pdf

PCN Other
2.73KHz.pdf

RoHs Status: ROHS3 Compliant

~~Compare~~

Our certification

In stock: 6388

Unit Price: $6.509
Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity	Unit Price	Ext. Price
1+	$6.509	$6.51
10+	$5.682	$56.82
30+	$5.177	$155.31
100+	$4.754	$475.40

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MSP430F6636IPZR Tech Specifications
Texas Instruments - MSP430F6636IPZR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - MSP430F6636IPZR

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Supply (Vcc/Vdd)	1.8V ~ 3.6V
Supplier Device Package	100-LQFP (14x14)
Speed	20MHz
Series	MSP430F6xx
RAM Size	18K x 8
Program Memory Type	FLASH
Program Memory Size	128KB (128K x 8)
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Package / Case	100-LQFP
Package	Tape & Reel (TR)

Product Attribute	Attribute Value
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C (TA)
Number of I/O	74
Mounting Type	Surface Mount
EEPROM Size	-
Data Converters	A/D 16x12b; D/A 2x12b
Core Size	16-Bit
Core Processor	MSP430 CPUXV2
Connectivity	I²C, IrDA, LINbus, SCI, SPI, UART/USART, USB
Base Product Number	MSP430F6636

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.31.0001

Parts Introduction

MSP430F6636IPZR (1)

Manufacturer Part Number

MSP430F6636IPZR

Manufacturer

Texas Instruments

Introduction

The MSP430F6636IPZR is a 16-bit embedded microcontroller from Texas Instruments, designed for low-power and high-performance applications.

Product Features and Performance

Core: MSP430 CPUXV2, 16-Bit Speed up to 20MHz

Connectivity: Comprehensive options including I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB

Peripherals include Brown-out Detect/Reset, DMA, POR, PWM, WDT

High number of I/O ports: 74

Program Memory: 128KB FLASH

RAM: 18KB

Voltage Supply Range: 1.8V to 3.6V

Data Converters: A/D 16x12b, D/A 2x12b

Oscillator: Internal

Operating Temperature Range: -40°C to 85°C

Product Advantages

High memory capacity facilitating complex programming and processing

Wide range of connectivity features enhancing peripheral integration

Flexible power supply requirements suitable for various applications

Key Technical Parameters

Core Size: 16-Bit

Speed: 20MHz

Program Memory Size: 128KB

RAM Size: 18KB

Voltage Supply (Vcc/Vdd): 1.8V to 3.6V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Integrated Brown-out Detect/Reset for system stability in variable power conditions

Watchdog Timer (WDT) prevents system hang-ups in erroneous conditions

Compatibility

Surface Mount 100-LQFP (14x14) packaging ensures compatibility with standard SMT manufacturing

Application Areas

Industrial control systems

Consumer electronics

Automotive systems

Internet of Things (IoT) devices

Product Lifecycle

Currently marked as Active

No indication of nearing discontinuation

Replacement and upgrade options available as per new generation of MSP430 series

Several Key Reasons to Choose This Product

High performance with 20MHz 16-bit CPU offering efficient processing capabilities

Extensive connectivity options enabling integration in various applications

Durable and reliable design suitable for harsh environments up to 85°C

Comprehensive development support from Texas Instruments

Large community and resources available for application development optimization

Frequently Asked Questions(FAQ)

How does the MSP430F6636IPZR's power consumption compare to other 16-bit MCUs in its class, and what design considerations are necessary when operating at 20MHz with USB functionality enabled?: The MSP430F6638IPZR operates at a core frequency of 20MHz, which is typical for mid-range MSP430 devices, but enabling USB adds significant current draw due to internal clocking and transceiver requirements. At full speed with USB active, average current can exceed 5mA from a 3.3V supply, compared to sub-100µA in low-power modes. Designers must account for this by implementing aggressive sleep modes during non-transaction periods and using external voltage regulators capable of handling transient loads. Unlike lower-speed variants such as the MSP430G2x series, the F6636 cannot sustain 20MHz indefinitely without thermal management considerations in compact packages.

What are the key differences between the MSP430F6636IPZR and the MSP430F6736IPZR in terms of peripheral integration and memory architecture, and how might these affect system design for industrial metering applications?: While both parts share the same 128KB Flash and 18KB RAM, the MSP430F6636IPZR includes integrated USB 2.0 Full-Speed interface with dedicated PHY support, whereas the MSP430F6736IPZR lacks USB and instead emphasizes enhanced analog peripherals like a second 12-bit ADC and higher-resolution DACs. For metering applications requiring firmware updates over USB or HID compliance, the F6636 is more suitable despite its slightly higher quiescent current. However, if isolation or noise immunity is critical, the absence of USB on the F6736 may simplify PCB layout and reduce susceptibility to ESD events near high-impedance sensor inputs.

Is it feasible to run the MSP430F6636IPZR at 20MHz continuously without an external crystal, and what trade-offs arise in timing accuracy versus power efficiency?: Yes, the MSP430F6636IPZR supports up to 20MHz operation using its internal DCO (Digitally Controlled Oscillator), eliminating the need for an external crystal in many cases. However, DCO calibration drift over temperature and supply voltage variation can introduce timing errors exceeding ±2% across the -40°C to 85°C range. In contrast, an external 32.768kHz crystal provides better long-term stability for real-time clocks but increases BOM cost and board space. For USB applications, the device requires precise 12MHz or 48MHz clocks; the internal oscillator can meet USB timing only after factory calibration, making it less reliable than external oscillators in production environments where traceability matters.

Can the MSP430F6636IPZR drive multiple USB endpoints simultaneously while maintaining deterministic response times, and what DMA configuration optimizes throughput?: The MSP430F6636IPZR supports up to four USB endpoints (control, interrupt, bulk, and isochronous), but simultaneous high-bandwidth transfers—such as bulk OUT and IN transactions at full speed—can saturate the 8-bit data bus and cause latency spikes. To mitigate this, enabling DMA for USB packet buffering allows direct memory access without CPU intervention, reducing interrupt overhead by up to 70%. In practice, transferring 64-byte packets at 12 Mbps requires servicing interrupts every ~50µs; with DMA, CPU utilization drops below 15% even during continuous streaming. Without DMA, context switching delays can accumulate, violating USB timing constraints and risking NAK/STALL responses.

How does the 16-bit MSP430F6636IPZR’s memory map differ from 8-bit microcontrollers, and what impact does this have on code density and interrupt handling efficiency?: Unlike 8-bit MCUs such as the MSP430G2553, which use byte-addressable memory and require masking operations for word access, the MSP430F6636IPZR employs a unified 16-bit memory map that simplifies arithmetic and improves code density by allowing native 16-bit operations. This reduces instruction count for tasks like checksum calculation or sensor averaging by approximately 40% compared to equivalent 8-bit implementations. Additionally, interrupt service routines benefit from faster return latencies due to hardware-supported register stacking, minimizing stack pointer manipulation overhead. However, misaligned 16-bit accesses may incur penalty cycles, so alignment-aware coding practices are recommended when interfacing with legacy peripherals designed for 8-bit systems.

What are the limitations of using the internal ADC in the MSP430F6636IPZR for precision voltage monitoring, and how should sampling rate be balanced against resolution needs?: The MSP430F6636IPZR features a 16-channel, 12-bit SAR ADC with programmable gain and reference selection, achieving ±1 LSB integral nonlinearity under ideal conditions. However, effective resolution degrades beyond 10-bit when powered from 1.8V due to reduced reference headroom, limiting dynamic range to ~65dB. Sampling rates above 20 ksps introduce aperture uncertainty that affects slow-changing signals like battery voltages. For accurate battery state-of-charge estimation, decimation filtering combined with oversampling (e.g., 8 samples averaged) can recover near-14-bit resolution at 2.5 ksps, trading speed for precision. Direct conversion at maximum 20 ksps yields adequate results for current sensing but risks aliasing without proper anti-aliasing filters.

How does the package choice (100-LQFP vs. smaller QFN variants) influence thermal performance and signal integrity in high-frequency USB designs using the MSP430F6636IPZR?: The 100-pin LQFP (14×14 mm) package of the MSP430F6636IPZR offers superior thermal dissipation through its exposed pad compared to leadless QFN alternatives, enabling sustained operation near 85°C ambient without throttling. However, its larger footprint increases parasitic inductance in power rails, potentially degrading USB differential pair impedance matching above 300 MHz. Careful layer stackup and decoupling placement within 2 mm of VCC/GND pins mitigates this. In contrast, QFN packages reduce EMI but require careful soldering inspection and offer limited reworkability. For USB designs prioritizing signal integrity, controlled impedance routing and minimized stub lengths become critical regardless of package type.

What role does the watchdog timer play in robust field deployment scenarios with the MSP430F6636IPZR, and how should it be configured to balance reliability against false triggers?: The MSP430F6636IPZR integrates a windowed watchdog timer (WDT+) that prevents runaway code execution unless explicitly disabled within a defined time window, enhancing system reliability in unattended applications. Proper configuration involves setting a timeout slightly longer than expected worst-case ISR duration—typically 1–2 ms at 20MHz—and placing WDT disable calls early in critical sections. False resets occur if interrupts are disabled too long or stack overflow corrupts WDT registers; therefore, using DMA and avoiding nested interrupts helps maintain predictability. Unlike simple timed WDTs, the windowed mode rejects premature disables, reducing sensitivity to software bugs during initialization phases common in bootloader-heavy designs.

How does the MSP430F6636IPZR handle brown-out detection thresholds across its operating voltage range, and what implications exist for battery-powered systems?: The MSP430F6636IPZR provides three selectable brown-out reset (BOR) levels: BOR3, BOR2, and BOR1, corresponding to trip points around 1.8V, 2.2V, and 2.7V respectively, ensuring safe operation down to 1.8V nominal. However, hysteresis is minimal (~50 mV), so rapid supply dips near threshold may cause unintended resets. In battery systems (e.g., Li-ion dropping from 4.2V to 3.0V), selecting BOR3 ensures graceful shutdown before undervoltage lockout, preserving EEPROM data integrity. Monitoring VCC via ADC during discharge allows predictive low-battery alerts, but frequent BOR events indicate inadequate decoupling or load transients, necessitating additional bulk capacitance or LDO regulation.

Can the MSP430F6636IPZR support dual-role USB functionality, and what firmware modifications are required to implement device-to-host switching?: No, the MSP430F6636IPZR is strictly USB device-only; it lacks the ID pin and transceiver logic needed for host mode operation. Attempting to emulate host behavior risks damaging attached peripherals due to improper VBUS control and signaling protocols. Instead, external circuitry such as TUSB4041LI-based hubs or dedicated host controllers must mediate communication. Firmware would need to manage enumeration, endpoint allocation, and power sequencing for downstream ports, but this exceeds the MCU’s capabilities without auxiliary ICs. Thus, for applications requiring USB On-The-Go (OTG), a different microcontroller family—such as the MSP430FRxx with USB OTG support—is preferable.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments MSP430F6636IPZR

Product Attribute
Part Number	MSP430F6636IZQWR	MSP430F6638IPZR	MSP430F6635IPZR	MSP430F6637IPZR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Program Memory Size	-	-	-	-
Oscillator Type	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Peripherals	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
EEPROM Size	-	-	-	-
Core Processor	-	-	-	-
Number of I/O	-	-	-	-
Core Size	-	-	-	-
Voltage - Supply (Vcc/Vdd)	-	-	-	-
Series	-	-	-	-
Speed	-	-	-	-
RAM Size	-	-	-	-
Connectivity	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Program Memory Type	-	-	-	-
Data Converters	-	-	-	-

MSP430F6636IPZR Datasheet PDF

Download MSP430F6636IPZR pdf datasheets and Texas Instruments documentation for MSP430F6636IPZR - Texas Instruments.

HTML Datasheet: MSP430F663x Datasheet.pdf
PCN Design/Specification: MSP430F54yy/F6yy Datasheet Update 26/Aug/2013.pdf Mult Dev Datasheet Rev 17/Dec/2018.pdf
PCN Assembly/Origin: 2.73KHz.pdf
PCN Other: 2.73KHz.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA