MC68HC908BD48I - 8-Bit 6MHz MCU with 48KB Flash
Référence : MC68HC908BD48I ✗ Fin de vie| Qté | Prix unitaire | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
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| 1 000 | $0 | $0,00 |
MC68HC908BD48I Présentation
An 8-bit microcontroller is a programmable controller designed for modest data widths, real-time control, and peripheral integration. In the product hierarchy, the MC68HC908BD48I is a microcontroller, an embedded-processing IC, and a semiconductor rather than a general-purpose computer. Its integrated flash reduces external program-memory requirements, while the integrated analog and timing peripherals can reduce the component count in control, sensing, and communication systems.
Key features identified in the verified distributor listing include an 8-bit architecture, 6 MHz operation, and 48 KB of Flash memory. The manufacturer datasheet search result additionally identifies a 6-channel, 8-bit analog-to-digital converter, a 16-channel, 8-bit pulse-width modulator, and USB 1.0 low-speed bus support with three endpoints. These functions make the device suitable for applications requiring embedded control alongside basic sensing, timing, and low-speed connectivity.
The MC68HC908BD48I is based on the HC08 platform, whose HCMOS implementation supports a compact embedded-control architecture. Its 8-bit processing core is intended for control logic, state machines, keypad or switch handling, and peripheral coordination rather than computationally intensive workloads. The 48 KB Flash capacity provides a meaningful program-memory budget for embedded firmware while eliminating the need for an external program-memory device in many designs.
Typical applications include industrial control equipment, instrumentation, consumer products, USB-connected peripherals, and low-cost embedded systems. The analog-to-digital and PWM resources can support sensing, actuator control, motor or lamp modulation, and periodic signal generation. USB support can simplify connection to a host system when the firmware implements the required low-speed USB behavior and the board provides suitable signal routing.
When designing a new board, use the manufacturer datasheet and package pinout as the authority for pin assignment, power, clocking, programming, and peripheral multiplexing. The 42-pin PDIP package is through-hole and is not electrically interchangeable with a surface-mount package without a deliberate PCB redesign. Firmware toolchain, programming method, timing requirements, and USB implementation should be validated before production use.
This page consolidates the verified distributor identification, manufacturer datasheet link, package information, key embedded resources, and practical selection considerations. It does not invent electrical values, pricing, pin functions, or replacement parts that were not present in the supplied verified data.
Alternatives de remplacement direct pour MC68HC908BD48I — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMC68HC908BD48I Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit HCMOS microcontroller |
| Fréquence d'horloge maximale | 6 MHz |
| Flash Memory | 48 KB |
| Program Memory Organization | 48K x 8 bits |
| ADC Resolution | 8 bits |
| ADC Channel Count | 6 channels |
| PWM Resolution | 8 bits |
| PWM Channel Count | 16 channels |
| USB Specification | USB 1.0 compliant low-speed bus |
| USB Endpoint Count | 3 endpoints |
| Package Type | 42-pin PDIP |
| Type de montage | Through-hole |
| Core Architecture | HC08 8-bit core |
| Device Family | MC68HC908 |
Guide de configuration des broches du MC68HC908BD48I 42-pin pdip
Configuration des broches du MC68HC908BD48I (boîtier 42-pin pdip). 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 MC68HC908BD48I.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC68HC908BD48I convient pour 6 applications: Industrial Control and Instrumentation, USB-Connected Peripheral, Sensor Interface and Data Acquisition, PWM Actuation and Motor-Like Control, Consumer and Communication Equipment, Educational and Prototype Embedded Systems.
Industrial Control and Instrumentation
The MC68HC908BD48I fits compact control panels, test instruments, and industrial peripherals that require local sensing and deterministic control. Its 8-bit HC08 core runs at up to 6 MHz, while 48 KB of embedded Flash provides room for application firmware, state handling, calibration logic, and communication routines. The integrated 6-channel, 8-bit ADC can read sensors or control loops, and the 16-channel, 8-bit PWM can support actuator or timing functions. Before industrial deployment, verify the device’s voltage range, temperature limits, isolation, watchdog behavior, EMC requirements, and long-term sourcing directly from the manufacturer documentation.
Recommandé
USB-Connected Peripheral
The MC68HC908BD48I is suitable for a low-speed USB peripheral when the product needs control firmware, configuration storage, and host communication in one device. The verified manufacturer datasheet result identifies USB 1.0 low-speed support and three endpoints, which can support command, status, or data-transfer functions when implemented correctly. The MCU’s 48 KB Flash can hold USB firmware and application logic, while the 8-bit processor handles device state and control messages. Board-level validation remains necessary for connector wiring, data protection, power requirements, firmware compatibility, and USB compliance.
Recommandé
Sensor Interface and Data Acquisition
The integrated ADC makes MC68HC908BD48I relevant for compact sensor-interface products that need to convert multiple analog inputs under firmware control. The verified feature set specifies 6 ADC channels at 8-bit resolution, which is appropriate for coarse measurements, threshold decisions, and low-cost control rather than precision instrumentation without additional signal conditioning. The 6 MHz HC08 core can sample, filter, and transmit readings while the 48 KB Flash stores configuration and application code. Designers should verify input voltage limits, sampling behavior, reference accuracy, grounding, and noise performance from the full manufacturer datasheet before choosing it for measurement accuracy-critical systems.
Recommandé
PWM Actuation and Motor-Like Control
MC68HC908BD48I can serve as the control MCU for products that require multiple PWM outputs or periodic actuator commands. The verified manufacturer datasheet result identifies a 16-channel, 8-bit PWM resource, enabling firmware-driven timing across several outputs while the 6 MHz core manages system state. Potential uses include fan or lamp control, simple motor-drive logic, valve timing, and educational or industrial control modules. External transistors, drivers, protection networks, and appropriate power design are still required; PWM capability alone does not determine motor current, voltage, or thermal performance.
Recommandé
Consumer and Communication Equipment
The MC68HC908BD48I can be used in cost-sensitive embedded products that need a local controller and optional USB connectivity without a separate program-memory device. Its 48 KB Flash, 8-bit architecture, and integrated conversion and timing resources support configuration storage, user-interface state, peripheral timing, and host communication. Typical designs include small control accessories, low-speed data products, and compact consumer modules. The exact power, environmental, and lifecycle requirements were not supplied, so the MCU should be selected only after checking current distributor sourcing and validating the complete product’s operating envelope.
Recommandé
Educational and Prototype Embedded Systems
MC68HC908BD48I is relevant for educational prototypes, legacy product maintenance, and embedded-control experiments because it combines a familiar 8-bit architecture with integrated Flash and useful peripherals. The 6 MHz clock supports deterministic instruction execution, and the 48 KB Flash provides space for demonstrating drivers, timers, ADC conversion, PWM generation, and USB behavior. The 42-pin PDIP package is especially convenient for breadboard and through-hole prototype construction compared with fine-pitch surface-mount packages. Developers should still use the official datasheet for pinout, programming, and electrical details because the verified search data confirms only the principal package and feature identifiers.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC68HC908BD48I — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC908KX2CDWER |
|---|---|---|
| Brand | Freescale Semiconductor | Freescale Semiconductor |
| Package | 42-pin PDIP | LQFP-32; not the same package |
| Mounting | Through-hole | Surface-mount |
Principaux différenciateurs
- Verified 8-bit, 6 MHz architecture with 48 KB Flash (vs MC908KX2CDWER)
- Integrated USB 1.0 low-speed support with three endpoints (vs MC908KX2CDWER)
- Through-hole 42-pin PDIP package (vs MC908KX2CDWER)
Notes de conception
Use the manufacturer package drawing and pinout before laying out a board for the 42-pin PDIP device. Confirm programming-access pins, clock and reset connections, supply pins, ground pins, and peripheral multiplexing against the MC68HC908BD48 datasheet. Do not substitute a pin-compatible-looking HC08 part until the actual pin names, alternate functions, and no-connect behavior have been compared. The supplied verified data does not include the complete pin table, so PCB completion should wait for that verification.
The verified data confirms a 6 MHz, 8-bit MCU with integrated Flash, ADC, PWM, and USB resources, but does not provide supply-voltage limits or current consumption. Determine the operating voltage from the manufacturer datasheet and design the regulator, decoupling network, and USB power path around the actual electrical limits. Validate startup, reset, USB bus-power behavior, and peripheral load current experimentally; the package alone does not establish power performance.
For USB or other communication interfaces, keep signal routing short and controlled, provide the required connector and protection components, and separate noisy switching or actuator paths from sensitive ADC and control signals. The verified USB specification is low-speed, but board-level signal integrity still depends on trace geometry, grounding, impedance-related implementation details, and the complete product environment. Validate with the relevant interface test procedure after schematic and layout review.
Do not treat the MC68HC908BD48I as interchangeable with a surface-mount HC08 device solely because the family and flash capacity appear similar. The verified target package is 42-pin PDIP, and the supplied alternatives data does not establish a pin-compatible replacement. Confirm footprint, pin numbering, supply voltage, memory map, peripheral resources, clock requirements, and firmware toolchain before committing to a substitute or redesign.
Informations de conformité
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred.
