MC9RS08KA1CSC - 8-Bit RS08 MCU, 1KB Flash, SOIC-8 | NXP
부품 번호: MC9RS08KA1CSC ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.27 | $2.27 |
| 10 | $2.27 | $22.70 |
| 100 | $2.27 | $227.00 |
| 500 | $2.27 | $1,135.00 |
| 1,000 | $2.27 | $2,270.00 |
MC9RS08KA1CSC 개요
The RS08 core is a compact CISC processor built around the S08 instruction set with additional high-performance LDA, STA, and CLR instructions. This MCU is intended for simple control, sensing, and actuator tasks where a larger 8-bit MCU would add unnecessary cost, memory, and board area. Its 63-byte RAM and 1 KB flash are sufficient for startup code, basic state machines, and tightly bounded control logic rather than general-purpose applications.
The device operates from a low-voltage supply suitable for embedded and battery-oriented designs, with an internal oscillator eliminating a mandatory external clock source. The RS08KA family also includes timer and interrupt resources for periodic sensing and event handling. Power-management features and the small package help reduce both board footprint and system complexity in cost-driven products.
Typical uses include simple keypad or button interfaces, low-speed motor and relay controllers, basic sensor nodes, household appliance controls, and auxiliary embedded functions. The compact SOIC-8 outline is useful when through-hole or leaded assembly is preferred, but its 1 KB program memory is a strict constraint for larger control algorithms.
When designing around MC9RS08KA1CSC, verify the exact pin multiplexing, reset behavior, oscillator limits, and supply-voltage range in the NXP datasheet. Avoid assuming that all RS08 family members are software-compatible, because memory size and peripheral configurations can differ. A migration to a larger MCU may be required if the application grows beyond the 63-byte RAM and 1 KB flash budget.
This product page combines verified distributor data, lifecycle information, package details, design constraints, and an honest assessment of alternative availability. It is intended to help engineers quickly determine whether this RS08KA device fits a minimal embedded-control design before requesting documentation and sourcing support.
드롭인 대체품: MC9RS08KA1CSC — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MC9RS08KA1CSC (동일 폼 팩터 및 풋프린트) — 차이점: Package, Maximum Clock Frequency, Mounting Type, Core Processor, Data Bus Width.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MC9RS08KA1CDB
✅ 드롭인✓ 재고 있음
$2.05 / 개
데이터시트 보기 →MC9RS08KA2CSC
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MC9RS08KA2CSCR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MC9RS08KA1CSC 최대 정격 & 전기적 특성
| Product Type | 8-bit microcontroller (MCU) |
| Processor Core | RS08 |
| Processor Series | RS08KA |
| 데이터 버스 폭 | 8-bit |
| 최대 클록 주파수 | 10 MHz |
| Flash Memory | 1 KB (1K x 8) |
| Internal RAM | 63 bytes |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Architecture | CISC |
| Internal Oscillator | Yes |
| System Protection | LVD, POR, WDT |
| 패키지 | 8-pin SOIC |
| 실장 유형 | Surface Mount |
| Operating Voltage | 2.5 V / 3.3 V / 5 V |
| Programming Memory | 1 KB internal flash |
| Timer | 8-bit modulo timer |
| Keyboard Interrupts | Five keyboard interrupt resources |
| RoHS 상태 | Unknown; not stated in verified data |
| Manufacturer | NXP Semiconductors |
MC9RS08KA1CSC 8-pin soic 핀 구성 가이드
MC9RS08KA1CSC(8-pin soic 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: MC9RS08KA1CSC.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MC9RS08KA1CSC 적합 용도: 7 애플리케이션s: Cost-Sensitive Basic Control, Simple Sensor Node, Button and Keypad Interface, Simple Relay and Actuator Controller, Battery-Powered Household Device, Low-Speed Motor or Relay Timing, Compact Auxiliary Embedded Function.
Cost-Sensitive Basic Control
MC9RS08KA1CSC fits simple appliance controls, button interfaces, and small state-machine products where a 1 KB flash budget is sufficient. The RS08 8-bit CISC core and 63 bytes of RAM can handle sequencing, basic logic, and low-rate input polling without a larger MCU. The 8-pin SOIC package keeps the board compact, while the internal oscillator removes a mandatory external clock component. Designers should constrain firmware size and verify the exact pin functions in the NXP datasheet before finalizing the control PCB.
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Simple Sensor Node
The MC9RS08KA1CSC can supervise basic analog or digital sensing functions in a compact embedded node. Its 1.8 V to 5.5 V feature range and internal oscillator make it useful in low-power, low-complexity systems, provided the exact operating limits are confirmed. The small memory footprint favors short acquisition and decision code rather than buffering or complex algorithms. Use the 63-byte RAM carefully, and avoid designs that require substantial protocol stacks or high-resolution data storage.
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Button and Keypad Interface
MC9RS08KA1CSC is appropriate for small keypad, debounced switch, and menu-control subsystems. The family description identifies five keyboard interrupt resources, allowing the MCU to respond to external events while executing a compact control loop. This is useful in products where the keypad is the primary human interface and the required firmware remains below the 1 KB flash limit. Validate debounce timing, interrupt behavior, and active levels against the exact datasheet rather than assuming compatibility with larger RS08 devices.
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Simple Relay and Actuator Controller
The compact RS08KA MCU can control relays, indicators, or other low-rate actuators in compact embedded products. Its 8-bit architecture and timer resources are sufficient for basic sequencing and debounce logic, while the 8-pin SOIC package simplifies leaded assembly. The device is not a replacement for a high-current driver; external transistors, protection, and appropriate power components remain necessary. Confirm pin drive capability, supply behavior, and watchdog requirements in the manufacturer documentation.
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Battery-Powered Household Device
MC9RS08KA1CSC can serve as the control core in a small battery-powered household device where the application is primarily event-driven. The internal oscillator and low-resource architecture reduce component count, while the compact SOIC-8 package supports space-constrained boards. Actual battery life depends on the complete firmware, peripherals, pull states, and sleep behavior, none of which are fully quantified in the supplied data. Validate low-power modes and current consumption against the NXP datasheet and application requirements.
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Low-Speed Motor or Relay Timing
The MC9RS08KA1CSC is suitable for simple timing and open-loop control tasks where the system does not require high computation or precision motor algorithms. The RS08 core can manage scheduled outputs and basic feedback logic within its limited memory budget. External driver circuitry is required for most motors, and protection against inductive transients must be designed separately. Confirm timer resolution, maximum clock conditions, and pin electrical limits before relying on timing-critical behavior.
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Compact Auxiliary Embedded Function
MC9RS08KA1CSC can add a small local control function to a larger appliance or module without committing to a high-memory microcontroller. This is useful for status LEDs, limit detection, simple interlocks, or local button logic while another processor handles system-wide tasks. The 63-byte RAM and 1 KB flash make partitioning the firmware essential. Define communication boundaries carefully because the supplied data does not specify a rich communications peripheral set for this exact variant.
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추천 제품 요약
엔지니어링 참조 데이터: MC9RS08KA1CSC — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MC9RS08KA1CDB | MC9RS08KA2CSC | MC9RS08KA2CSCR |
|---|---|---|---|---|
| Package | 8-pin SOIC | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Processor Core | RS08 | RS08 | RS08 | RS08 |
| Data Bus Width | 8-bit | 8-bit | 8-bit | 8-bit |
주요 차별점
- Extremely compact memory footprint (vs MC9RS08KA2CSC)
- Targeted ultra-low-cost positioning (vs MC908GP32CFBE)
- Internal oscillator integration (vs MC9RS08KA2CSCR)
설계 노트
Before power-up, confirm the exact supply range, operating voltage modes, absolute maximum ratings, and power-on reset behavior in the NXP datasheet. The supplied distributor data references 1.8 V to 5.5 V and also 2.5 V, 3.3 V, and 5 V, so do not select decoupling or regulator values from the broadest listing alone. Keep the supply decoupling path short and validate brownout behavior for the final external load.
Use the manufacturer package drawing and verified pin table to finalize the SOIC-8 land pattern. Place the decoupling capacitor close to the device power pin and preserve a clean ground return. Because the verified data does not provide the complete MC9RS08KA1CSC pin table, do not infer programming, reset, oscillator, or I/O functions from a related RS08 part without schematic review.
The 1 KB flash and 63-byte RAM are the dominant design constraints. Measure the linked code size early, avoid library-heavy middleware, and keep stack depth conservative. The related MC9RS08KA2CSC has 2 KB flash, so treating it as a direct replacement without checking the memory and pin behavior can create software or hardware surprises.
For simple switching or keypad applications, separate sensitive timing paths from high-current switching loops and keep external driver traces away from the MCU supply and signal pins. If relays or motors are used, provide protection networks and adequate return-current paths; the MCU should control drivers through defined interfaces rather than carry inductive current directly.
규정 준수 정보
The supplied web data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not indicated for this general-purpose MCU.