MC9S08RE32CFJ - 8-Bit 8MHz 32KB Flash MCU | NXP
부품 번호: MC9S08RE32CFJ ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $9.81457 | $9.81 |
| 10 | $9.81457 | $98.15 |
| 100 | $9.81457 | $981.46 |
| 500 | $9.81457 | $4,907.29 |
| 1,000 | $9.81457 | $9,814.57 |
MC9S08RE32CFJ 개요
An HCS08 S08 microcontroller is an embedded microcontroller within the broader 8-bit microprocessor family. It combines a CPU core, flash program memory, SRAM, peripherals, and general-purpose I/O in one integrated circuit. Compared with field-programmable gate arrays, an MCU executes control firmware directly, reducing board complexity for motor, sensor, appliance, and industrial-control tasks. Its 32 KB flash capacity provides room for application code and fixed data, while the 2 KB SRAM supports working variables and stack operations.
The MC9S08RE32CFJ's principal verified characteristics are its 8-bit architecture, 8 MHz operating frequency, 32 KB flash, 2 KB RAM, and 32-LQFP 7 x 7 mm package. A second distributor snippet reports a 16 MHz clock-related attribute and 32,768 ROM words, while the primary DigiKey description identifies 8 MHz. Because these snippets differ on the clock field, designs should verify the exact bus-clock interpretation and maximum operating frequency against the MC9S08RE32 datasheet before release.
The 32-LQFP package provides a practical upgrade path over smaller packages while retaining a leaded, visually inspectable surface-mount format. The verified data establishes surface mounting and a 7 x 7 mm body, but pin names, peripheral assignments, electrical limits, and exposed thermal-pad details are unavailable in the supplied snippets. Firmware migration also requires validation because a nominal memory-and-package match does not establish instruction-set, peripheral, timing, or toolchain equivalence.
Typical uses include small sensor controllers, appliance interfaces, compact motor-control boards, keypad and display modules, and industrial sub-systems that need deterministic embedded logic. An 8-bit MCU is most appropriate when computation is modest, update simplicity matters, and total system cost is more important than high arithmetic throughput or a large RAM workspace.
Designers should confirm the complete pinout, power rails, I/O limits, reset requirements, clock configuration, memory map, and programming interface from the manufacturer datasheet. Prototype purchases should also verify authenticity, because legacy S08 inventory can include original, surplus, or independently sourced parts with different traceability.
This page combines verified distributor specifications, lifecycle and sourcing cautions, cross-reference availability, and practical design guidance that are not consolidated in a single manufacturer summary. It also distinguishes confirmed 32-LQFP options from larger 44-LQFP variants that cannot be treated as pin-compatible drop-ins.
드롭인 대체품: MC9S08RE32CFJ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청MC9S08RE32CFJ 최대 정격 & 전기적 특성
| Product Type | 8-bit HCS08 S08 flash microcontroller |
| Architecture | 8-bit |
| Maximum Stated Clock Frequency | 8 MHz |
| Conflicting Clock Attribute | 16 MHz reported by one marketplace source |
| Flash Memory | 32 KB (32K x 8) |
| ROM Words | 32,768 words |
| RAM | 2 KB (2048 bytes) |
| 패키지 | 32-LQFP (7 x 7 mm) |
| Terminal Count | 32 terminals |
| 실장 유형 | Surface mount |
| Supplier Device Package | 32-LQFP (7 x 7 mm) |
| Core Family | HCS08 S08 |
| Program Memory Type | Flash |
MC9S08RE32CFJ 32-lqfp (7 x 7 mm) 핀 구성 가이드
MC9S08RE32CFJ(32-lqfp (7 x 7 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: MC9S08RE32CFJ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MC9S08RE32CFJ 적합 용도: 6 애플리케이션s: Compact Sensor Controller, Appliance Control Module, Basic Motor Control Board, Keypad and Indicator Interface, Embedded Data Logger, Legacy Equipment Controller.
Compact Sensor Controller
MC9S08RE32CFJ fits a compact sensing subsystem when the control program is modest and the device must retain 32 KB of flash plus 2 KB of working RAM. Its 8-bit HCS08 S08 architecture is appropriate for periodic sampling, threshold decisions, status reporting, and local actuator control rather than intensive signal analysis. The 32-LQFP 7 x 7 mm package provides 32 externally visible terminals for a leaded surface-mount design. Before schematic release, verify the actual sensor interfaces, available timers, I/O voltage limits, and wake modes in the manufacturer datasheet because those details are not established by the supplied distributor snippets.
추천
Appliance Control Module
The MC9S08RE32CFJ can serve as the low-cost control core in an appliance module that coordinates buttons, indicators, relays, and a small state machine. Its 32 KB flash accommodates embedded application code and constants, while 2 KB of SRAM supports stack space and intermediate variables. The target device is identified as an 8 MHz part, making it more appropriate for supervisory and discrete-event logic than compute-heavy loops. Final design selection must confirm supply voltage, port drive capability, watchdog behavior, reset pins, and brownout limits from the full datasheet before the 32-LQFP layout is released.
추천
Basic Motor Control Board
MC9S08RE32CFJ may be evaluated for a small motor-control board where an 8-bit MCU performs command decoding, sequencing, speed-state management, and protection supervision. The 32 KB flash and 2 KB RAM can support a focused control program, while the 32-LQFP package offers a manageable footprint for assembly and inspection. Its suitability depends on timer channels, PWM capability, input capture, and pin mapping, none of which can be confirmed from the provided search results. Engineers must also compare transistor drive levels, current sensing, isolation, regeneration handling, and thermal performance of the power stage.
추천
Keypad and Indicator Interface
For a keypad, menu, or indicator interface, MC9S08RE32CFJ can handle debouncing, state transitions, display commands, and communication with a host processor. Its 2 KB RAM may be adequate for short buffers and local variables, while 32 KB flash provides room for application logic. The 32-LQFP 7 x 7 mm package is useful where a matrix of LEDs, switches, and connectors requires more external pins than a small MCU package offers. Designers should verify available I/O, port width, pull-up capability, interface timing, and absolute maximum levels because the supplied distributor records do not enumerate these resources.
추천
Embedded Data Logger
MC9S08RE32CFJ can support a small embedded data logger when stored records and working buffers remain within 32 KB of flash and 2 KB of RAM. Typical tasks include periodic sensor capture, timestamp management, local keypad control, and export through a serial interface. Its 8-bit architecture is suitable for straightforward record formatting but not for high-rate signal compression or large buffering. Before design-in, verify the exact serial interfaces, timer availability, write endurance expectations, external storage interface, and watchdog behavior. If records exceed available memory or acquisition timing is demanding, a larger 16- or 32-bit MCU may be the better architecture.
추천
Legacy Equipment Controller
MC9S08RE32CFJ is a practical candidate for maintaining or cloning a legacy equipment controller when the original firmware, peripheral map, and 32-LQFP footprint are already known. The 32 KB flash and 2 KB RAM support software compatibility work, while the established HCS08 S08 family may help teams retain an existing development toolchain and organizational knowledge. Migration should begin by archiving the programmed image and schematics, then comparing reset, clock, watchdog, communications, timers, and I/O behavior on target hardware. The part's lifecycle classification remains unknown, so long-term supply risk must be managed separately from electrical compatibility.
추천
추천 제품 요약
엔지니어링 참조 데이터: MC9S08RE32CFJ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MC9S08RE32CFGE |
|---|---|---|
| Brand | NXP Semiconductors / Freescale | NXP Semiconductors / Freescale |
| Package | 32-LQFP (7 x 7 mm) | 44-LQFP (10 x 10 mm) |
| Architecture | 8-bit | 8-bit |
| Stated Clock | 8 MHz | 8 MHz |
| Flash Memory | 32 KB (32K x 8) | 32 KB (32K x 8) |
| RAM | 2 KB | 2 KB |
| Terminal Count | 32 terminals | 44 terminals |
| Body Size | 7 x 7 mm | 10 x 10 mm |
| Mounting Type | Surface mount | Surface mount |
| Drop-In Suitability | Target footprint | Not drop-in: larger package and different terminal count |
주요 차별점
- Smaller PCB footprint than the related CFGE package option (vs MC9S08RE32CFGE)
- Established 32 KB flash and 2 KB RAM configuration (vs MC9S08RE32CFGE)
- Exact target footprint for MC9S08RE32CFJ assemblies (vs MC9S08RE32CFGE)
설계 노트
Do not treat MC9S08RE32CFGE as a drop-in substitute: verified distributor data places it in a 44-LQFP 10 x 10 mm package rather than the target's 32-LQFP 7 x 7 mm footprint. The family-level similarities in 8-bit architecture, 32 KB flash, and 2 KB RAM do not overcome the physical PCB mismatch. For reuse of MC9S08RE32CFJ firmware, also compare vector tables, memory maps, timers, serial interfaces, reset behavior, and pin multiplexing rather than relying on the MC9S08RE32 family name.
Obtain the exact 32-LQFP pinout and package drawing before routing the PCB; the supplied data confirms only the 32-terminal, 7 x 7 mm format. Preserve a clear pin-1 orientation and place decoupling, reset, clock, and programming-access connections exactly as required by the manufacturer reference design. Because no verified pin assignment is available here, do not infer power, oscillator, or I/O functions from neighboring S08 devices, since related packages can have different terminal assignments.
Clock data conflicts across the supplied search results: DigiKey describes MC9S08RE32CFJ at 8 MHz, while Partstack reports a 16 MHz clock frequency. Treat 8 MHz as the distributor-listed product value and verify whether 16 MHz represents an internal oscillator, maximum clock attribute, or another family-specific condition. Firmware timing, baud-rate generation, timer configuration, and production test limits must be based on the exact manufacturer datasheet rather than the conflicting marketplace snippet.
Validate power sequencing, operating voltage, input thresholds, and I/O drive current directly from the MC9S08RE32 datasheet before connecting external sensors or relays. The verified snippets do not state supply voltage, absolute maximum ratings, or peripheral current limits. Keep sensitive signals properly conditioned, use local high-frequency bypass capacitance following manufacturer guidance, and isolate inductive or high-voltage loads from the MCU so switching transients do not create unintended reset or flash-write hazards.
Distributor availability does not prove current manufacturer lifecycle status or supply quality. As of 2026-10-21, MC9S08RE32CFJ is offered by several sellers, but no authoritative NXP lifecycle declaration was supplied. For a new production design, request supplier provenance, date code, condition, programming data, counterfeit-avoidance controls, and change notifications. Archive the last approved firmware image and board test results because an older or independently sourced part may differ in markings, test status, or traceability.
규정 준수 정보
The supplied verified search results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim has been inferred from package type, distributor listing, or manufacturer branding.