My Inquiry
My Account
Texas Instruments MSP430F6635IZCAR
- Part No.:
- MSP430F6635IZCAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F6635IZCAR.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 113NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,099
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F6635IZCAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring a 256 KB flash memory, 16 KB + 2 KB RAM, USB 2.0 full-speed interface, 12-bit ADC with 16 channels (12 external, 4 internal), and up to 74 GPIO pins in a 100-pin LQFP package. It targets battery-powered sensor systems and portable instrumentation requiring RTC backup, LCD driving, and fast wake-up from low-power modes.
For engineers reviewing the MSP430F6635IZCAR datasheet, MSP430F6635IZCAR pinout, MSP430F6635IZCAR application, or MSP430F6635IZCAR equivalent, key selection criteria include USB integration, 12-bit ADC channel count, absence of on-chip DACs, RTC with alarm, and LQFP-100 packaging for industrial-grade layout compatibility and thermal management.
Technical Context
The MSP430F6635IZCAR implements a 16-bit RISC CPUXV2 core with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system includes FLL stabilization, VLO and REFO internal sources, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal), enabling precise timing across active and low-power modes.
Power management integrates a programmable LDO, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes - including LPM3.5 (RTC active, 1.1 µA) and LPM4.5 (shutdown, 0.3 µA). The device supports USB 2.0 full-speed via integrated PHY, PLL, 3.3-V/1.8-V power system, and eight endpoints - all without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with hardware multiplier for 32-bit arithmetic - enables efficient signal processing in resource-constrained embedded firmware. |
| Flash / RAM | 256 KB flash + 16 KB + 2 KB RAM - sufficient for complex USB stack, sensor fusion algorithms, and bootloader storage in standalone devices. |
| ADC Resolution & Channels | 12-bit ADC12_A with 16 channels (12 external, 4 internal) - supports simultaneous multi-sensor acquisition with autoscan and internal temperature/Vmid monitoring. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, PLL, and dual-voltage power system - eliminates external transceivers and simplifies host connectivity in metering and diagnostic tools. |
| Low-Power Modes | LPM3.5 (1.1 µA @ 3.0 V, RTC active) and LPM4.5 (0.3 µA @ 3.0 V, shutdown) - extends battery life in always-on sensing applications with periodic wake-up events. |
| Wake-up Time | 3 µs from standby (LPM3) to active mode - ensures responsive real-time control in motor feedback loops or interrupt-driven sensor polling. |
| I/O Count | Up to 74 GPIO pins with configurable drive strength and Schmitt-trigger inputs - supports direct connection to buttons, LEDs, sensors, and LCD segments without external buffers. |
Pinout & Package
Package: LQFP-100 (14 mm × 14 mm), RoHS-compliant, leaded, surface-mount. Thermal pad not present; standard reflow profile applies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin JTAG/SBW entry point for programming and real-time debugging; internal pullup enables reliable reset assertion. |
| P1.x–P9.x (74 total) | General-purpose bidirectional I/O | Configurable as digital input/output, peripheral function select (e.g., USCI, timer capture), or LCD segment drivers - supports multiplexed 160-segment display directly. |
| XT1IN/XT1OUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy; internal load caps eliminate need for external capacitors in most designs. |
| XT2IN/XT2OUT | High-frequency crystal oscillator terminals | Accepts crystals up to 32 MHz for system clock generation; optional bypass mode allows external clock source injection. |
| DP/DM | USB differential data pair | Full-speed USB 2.0 physical layer signals - require 27-Ω series resistors and 1.5-kΩ pullup on DP per USB specification; no external transceiver needed. |
| DVCC/DVSS, AVCC/AVSS | Digital/analog power and ground rails | Separate analog/digital supplies reduce noise coupling into ADC and comparator circuits; AVCC must be ≥ DVCC for valid 12-bit conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 full-speed PHY | Eliminates external transceiver IC and associated passives - reduces BOM cost and PCB area in portable USB peripherals. |
| 12-bit ADC with autoscan and internal references | Enables autonomous multi-channel sampling without CPU intervention; internal 1.5/2.0/2.5-V references remove need for external precision voltage sources. |
| RTC_B module with battery backup support | Maintains timekeeping during main power loss using VBAT rail - critical for energy meters and security logs requiring tamper-proof timestamping. |
| LCD_B driver for 160 segments | Direct drive of segmented LCDs without external bias generator - lowers component count in thermostats, handheld testers, and medical displays. |
| 6-channel DMA controller | Offloads data movement from CPU during ADC conversions, USB transfers, or memory-to-memory operations - preserves low-power operation and deterministic latency. |
Applications
| Energy Metering | Portable Diagnostic Tool |
|---|---|
Use Scenario: Residential or commercial electricity meter with real-time consumption logging, tariff switching, and optical/USB communication. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, managing isolated ADC sampling, storing data in flash, and maintaining RTC-backed timestamps. Use Value: Integrated 12-bit ADC with internal references and 74 GPIO enable direct connection to shunt/sensor front-ends and optical UART/USB interfaces - eliminating signal conditioning ICs. |
Use Scenario: Handheld multimeter or sensor analyzer with LCD display, USB data export, and battery operation exceeding 1 year. IC Role / Device Role / Timing Role: Central MCU handling analog front-end digitization, LCD rendering, button input scanning, and USB CDC-class communication to PC. Use Value: Ultra-low-power LPM3.5 (1.1 µA) and LPM4.5 (0.3 µA) modes extend battery life; integrated LCD_B driver drives 160 segments without external bias IC. |
| Industrial Thermostat | Remote Sensor Node |
Use Scenario: Wall-mounted HVAC controller with temperature/humidity sensing, relay actuation, local LCD, and wired/wireless communication interface. IC Role / Device Role / Timing Role: Primary control unit running PID loop, managing I²C sensor reads, driving relays via GPIO, and updating segmented LCD display. Use Value: Dual USCI modules support simultaneous I²C (sensor bus) and UART (RS-485 gateway) - no external bridge IC required; 74 GPIO accommodate multiple relays and status LEDs. |
Use Scenario: Battery-powered environmental monitor deployed in remote locations, transmitting sensor data over USB or serial to gateway. IC Role / Device Role / Timing Role: Autonomous data logger waking periodically via RTC alarm to sample sensors, process readings, and transmit via USB or UART before returning to LPM4.5. Use Value: 3 µs wake-up time ensures minimal active duration; 256 KB flash stores firmware + long-term sensor history; USB enables field firmware updates without dedicated programmer. |
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 |
|---|---|---|---|
| MSP430F6636IPZ | 128 KB flash, same 16 KB + 2 KB RAM, identical peripherals except DAC12_A omitted - matches MSP430F6635IZCAR feature set but with reduced program memory. | Suitable for simpler firmware where 256 KB flash is unnecessary - e.g., fixed-function thermostats without OTA update capability. | Select when code size is ≤128 KB and cost sensitivity outweighs future firmware scalability needs. |
| MSP430F6634IPZ | 192 KB flash, same RAM and peripheral complement as MSP430F6635IZCAR - differs only in flash capacity and orderable part number; shares identical pinout and electrical specs. | Valid drop-in replacement where 192 KB flash suffices - used in production designs targeting lower-cost variants within same hardware platform. | Choose for BOM optimization in volume production where firmware footprint fits 192 KB and qualification reuse is prioritized. |
Compared with MSP430F6636IPZ and MSP430F6634IPZ, the MSP430F6635IZCAR provides maximum flash headroom (256 KB) for complex USB stacks and future firmware enhancements while retaining identical low-power performance, USB integration, and 74-GPIO flexibility in LQFP-100.
Availability
MSP430F6635IZCAR is available at Aetrix Electronics and suitable for energy metering, portable diagnostic tools, industrial thermostats, and remote sensor nodes requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for MSP430F6635IZCAR 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 for industrial, automotive, and consumer markets.
The MSP430F663x product line is designed for ultra-low-power sensing and measurement applications - integrating high-precision analog peripherals, USB connectivity, and robust RTC functionality into a single chip for battery-operated instrumentation.
FAQ
What is the maximum system clock frequency supported by the MSP430F6635IZCAR?
The MSP430F6635IZCAR supports a maximum system clock frequency of 20 MHz, achieved via its integrated FLL control loop using either the internal DCO or external high-frequency crystal (XT2) up to 32 MHz. This frequency governs CPU execution speed, peripheral timing, and USB frame generation - all verified in TI's SLAS566G datasheet Section 8.20.
Does the MSP430F6635IZCAR include a built-in DAC?
No, the MSP430F6635IZCAR does not include a DAC. Per Table 6-1 in the official datasheet, DAC12_A channel count is marked as "–" for this device, distinguishing it from MSP430F6638/F6637/F6636 which include two 12-bit DAC channels. Analog output must be implemented externally or via PWM-based filtering.
What package type and pin count does the MSP430F6635IZCAR use?
The MSP430F6635IZCAR uses a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm. This is confirmed in the Device Information table and Figure 7-1 of the SLAS566G datasheet. The "ZCAR" suffix denotes the RoHS-compliant, leaded LQFP variant - distinct from nFBGA (ZCA) or MicroStar Junior BGA (ZQW) options.
How many USB endpoints does the MSP430F6635IZCAR support?
The MSP430F6635IZCAR supports eight USB endpoints - four IN and four OUT - as specified in Section 1 Features and Section 8.56 of the SLAS566G datasheet. This enables concurrent control, bulk, and interrupt transfers required for composite USB devices like HID+CDC or custom vendor-class peripherals.
Is the MSP430F6635IZCAR compatible with the MSP430F6634IPZ in terms of pinout and software?
Yes, the MSP430F6635IZCAR and MSP430F6634IPZ share identical pinout, peripheral register mapping, and instruction set. Both are LQFP-100 devices with matching GPIO, USCI, ADC, and USB signal assignments - enabling direct hardware compatibility and firmware reuse across designs differing only in flash size (256 KB vs. 192 KB).
MSP430F6635IZCAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 113-VFBGA
- Series:
- MSP430F6xx
- 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, LCD, 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
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F6635IZCAR FAQ
1.How can I place an order for MSP430F6635IZCAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6635IZCAR 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 MSP430F6635IZCAR reliable?
The price and inventory of MSP430F6635IZCAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6635IZCAR is usually 5 days.
3.What payment methods are accepted for MSP430F6635IZCAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6635IZCAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6635IZCAR?
MSP430F6635IZCAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6635IZCAR 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 MSP430F6635IZCAR?
For technical support, including MSP430F6635IZCAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6635IZCAR requirements.
6.How does Aetrix verify that MSP430F6635IZCAR is sourced from the original manufacturer or authorized distributors?
All MSP430F6635IZCAR 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 MSP430F6635IZCAR meets industry standards.
7.What is the process for return or replacement of MSP430F6635IZCAR?
All MSP430F6635IZCAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6635IZCAR, 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 MSP430F6635IZCAR part is unused and in its original packaging.
Return procedure for MSP430F6635IZCAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F6635IZCAR 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…
