MSP430F6638CY - 20MHz 16-Bit Mixed-Signal MCU | Texas Instruments
Référence : MSP430F6638CY ✓ ActifMSP430F6638CY Présentation
A mixed-signal microcontroller combines a digital processor with analog conversion and other peripheral functions on one integrated circuit. The MSP430F6638 belongs to the MSP430F6xx family, whose 16-bit RISC CPUXV2 architecture uses a reduced instruction set designed for efficient embedded control. USB, serial interfaces, DMA, and high-resolution analog peripherals make this device suitable for industrial instrumentation, data acquisition, communications, and control systems where integration can reduce external component count.
The MSP430F6638 operates with a 20 MHz maximum clock and provides 256KB of program Flash plus 16KB of SRAM. Its analog resources include a 12-bit ADC and 12-bit DAC, while the integrated comparator supports thresholding and signal monitoring. Additional peripherals include DMA, brown-out detection and reset, power-on reset, PWM, a watchdog timer, and a 160-segment LCD driver. These features support real-time acquisition, local control loops, human-machine interfaces, and firmware-managed peripheral movement.
The device provides I2C, IrDA, LINbus, SCI, SPI, UART/USART, and USB connectivity. USB can support a direct host or device-oriented peripheral role, while the serial interfaces allow connection to sensors, transceivers, displays, and external converters. The 74 I/O positions indicated for the MSP430F6638 family provide a broad hardware interface for a platform assembled from bare die or a qualified module.
Because MSP430F6638CY is offered as die sale rather than a conventional packaged ordering option, assembly into a finished electronic assembly requires die attach, wire bonding, electrical verification, and a package or substrate designed for the device. The die-sale designation also means that exposed-pad, lead, pinout, and standard package drawings cannot be assigned safely without the bonding map or assembly documentation.
For new production designs, engineers should use the MSP430F6638 family documentation, confirm the available memory and peripheral configuration, and plan the analog input conditioning around the ADC resolution. USB signal routing requires controlled impedance and careful placement of protection and bypass components, while firmware should verify reset behavior and watchdog behavior during startup.
This product summary consolidates the manufacturer specifications, ordering information, interface capabilities, die-sale constraints, and application guidance needed to evaluate the MSP430F6638CY before beginning an embedded mixed-signal design.
Alternatives de remplacement direct pour MSP430F6638CY — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMSP430F6638CY Valeurs maximales et caractéristiques électriques
| Product Type | 16-bit mixed-signal microcontroller |
| Manufacturer | Texas Instruments |
| Series | MSP430F6xx |
| Core Processor | CPUXV2 |
| Core Size | 16-bit |
| Fréquence d'horloge maximale | 20 MHz |
| Program Memory Size | 256KB (256K x 8) |
| Program Memory Type | Flash |
| RAM Size | 16KB |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| Number of I/O | 74 |
| LCD Segment Support | 160 segments |
| Connectivity | I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, comparator, DMA, POR, PWM, WDT |
| Orderable Form | Die sale |
Guide de configuration des broches du MSP430F6638CY standard
Configuration des broches du MSP430F6638CY (boîtier standard). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MSP430F6638CY.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MSP430F6638CY convient pour 6 applications: Industrial Data Acquisition, USB-Connected Control Panel, Precision Signal Generator, HMI with Local Display, Battery-Powered Field Sensor Node, Motor and Power-System Controller.
Industrial Data Acquisition
The MSP430F6638CY is appropriate for compact industrial measurement systems that must acquire analog signals and move data through a local controller. Its 12-bit ADC supports process monitoring, while 16KB of SRAM can hold acquisition buffers and the 20 MHz CPU can perform filtering, scaling, and alarm calculations. USB, UART/USART, SPI, and I2C provide several paths to a host, data logger, or sensor network. The 256KB of Flash is useful for application firmware and calibration tables. Design the analog front end for the required input range, bandwidth, reference accuracy, and protection, and validate the channel performance against the MSP430F663x datasheet.
USB-Connected Control Panel
The MSP430F6638CY can serve as the control and communications hub in a USB-connected instrument that also manages local operator inputs or displays. Its USB interface allows a direct computer connection, while the 160-segment LCD capability can support status indication and the 74 I/O positions can accommodate buttons, indicators, and control signals. The 20 MHz CPU handles control logic, the 16KB SRAM supports working state, and the 256KB of Flash stores firmware and interface descriptors. USB layout, power supervision, firmware updates, and connector protection require careful design review before production.
Precision Signal Generator
The MSP430F6638CY is useful in a programmable signal source or test fixture where the 12-bit DAC creates an analog output under firmware control. The controller can calculate waveform values, apply configuration, record operating state, and expose commands through USB or a serial interface. Its 256KB of Flash supports substantial firmware and lookup data, while DMA can assist with time-based data movement when configured appropriately. Application accuracy depends on the DAC reference, analog reconstruction, output buffering, and calibration. Use the manufacturer electrical characteristics and reference practices to establish output range, settling behavior, and noise expectations.
HMI with Local Display
The MSP430F6638CY fits human-machine interfaces that need a segment LCD, local control logic, and network connectivity in one low-power design. The integrated 160-segment LCD driver reduces the need for external display-control hardware, and the CPU can manage menus, alarms, keypad input, and process-state updates. I2C or SPI can connect sensors and configuration devices, while UART/USART or USB supports service access. With 16KB of SRAM, application code should use efficient display and input structures, and firmware should avoid blocking delays that would delay operator response or peripheral servicing.
Battery-Powered Field Sensor Node
The MSP430F6638CY can form the core of a field sensor node that measures local analog conditions and reports results through a wired interface. Its 16-bit CPU architecture, Flash memory, SRAM, and collection of serial peripherals support efficient embedded firmware, while brown-out detection, power-on reset, and the watchdog improve recovery behavior in unattended equipment. USB may be used for configuration or service rather than continuous operation. A battery design must budget energy for acquisition, radio or bus activity, and the display if fitted, then verify low-power behavior and operating limits against the device documentation.
Motor and Power-System Controller
The MSP430F6638CY is applicable to supervisory control in power conversion, actuator, and motor-monitoring systems where local computation is needed. PWM outputs support control functions, the comparator can monitor thresholds, and the 12-bit ADC can supervise analog quantities. The 20 MHz CPU executes control and fault logic, 16KB of SRAM holds current operating state, and DMA can reduce processor involvement in selected transfers. USB or serial links enable configuration and diagnostics. Safety-critical implementations require appropriate isolation, watchdogs, fault states, thermal analysis, and verification beyond the device's normal mixed-signal control role.
Données de référence d'ingénierie pour MSP430F6638CY — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Product Type | 16-bit mixed-signal microcontroller |
| Brand | Texas Instruments |
| Package | Die sale |
| Core Processor | CPUXV2 |
| Core Size | 16-bit |
| Maximum Clock Frequency | 20 MHz |
| Program Memory | 256KB Flash |
| RAM | 16KB |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| Connectivity | I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB |
| Number of I/O | 74 |
| LCD Support | 160 segments |
| Orderable Form | Die sale |
Principaux différenciateurs
- Combines a 12-bit ADC, 12-bit DAC, comparator, USB, and LCD control in one mixed-signal MCU (vs General-purpose serial-interface MCU without the same integrated analog and LCD feature set)
- Provides 256KB of Flash and 16KB of SRAM (vs Small-memory 16-bit MCU)
- Supports nine listed communication interfaces (vs MCU offering only a subset of serial and wired interfaces)
- Offers die-level integration for specialized assembly programs (vs MSP430F6638IPZ packaged ordering option)
Notes de conception
Treat MSP430F6638CY as a die-level design rather than a conventional PCB component. Obtain the die pad-coordinate and bonding information required by the assembly process before defining the substrate or package footprint. Confirm die orientation, pad numbering, bond-wire or flip-chip limits, keep-out areas, and substrate design rules with the assembler. Do not copy the footprint of a packaged MSP430F6638 ordering option because the physical attachment and pad geometry are different.
Provide separate, low-impedance supply paths for the MCU and analog sections, and place the required bypass capacitors close to their device-side power and ground pads. Ground-return planning is particularly important because the same device combines digital control, ADC, DAC, and communications. Use the manufacturer recommended capacitor values and voltage ratings, verify startup sequencing against brown-out and power-on reset behavior, and check the analog reference source for adequate noise and decoupling before enabling precision conversions.
Route USB as a controlled-impedance interface and keep the transceiver path away from high-current switching nodes. Plan connector protection, series impedance, branch topology, and return-path continuity according to the applicable USB implementation guidance. For analog channels, keep input traces short, use a continuous reference plane, separate digital and analog return currents where practical, and isolate ADC sources from switching-node capacitance. Validate the completed layout for crosstalk, settling, and conversion accuracy.
Do not interpret the die-sale designation as a package pinout or assume that a packaged MSP430F6638 variant can be substituted without redesign. The MSP430F6638CY orderable form changes assembly requirements, and firmware should also be reviewed for boot configuration, brown-out recovery, watchdog handling, USB initialization, and peripheral conflicts. Before production, verify the programmed image, die orientation, bonding continuity, analog calibration, temperature behavior, and each communication interface through electrical test.
Informations de conformité
The die-sale product information does not state the requested compliance attributes. Confirm applicable environmental, automotive, lead-free, and assembly requirements for the specific production configuration with Texas Instruments.
