MC9RS08KB12CWJ vs MC9RS08KA4CWJ Comparison
Detailed side-by-side comparison of MC9RS08KB12CWJ by NXP Semiconductors and MC9RS08KA4CWJ by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
NXP Semiconductors
MC9RS08KB12CWJ - 8-bit RS08 MCU, 12KB Flash, 20MHz | NXP SOIC-20
MC9RS08KB12CWJ ✓ ActiveNXP Semiconductors
MC9RS08KA4CWJ - RS08 8-bit MCU, 4KB Flash, 20MHz | NXP
MC9RS08KA4CWJ ✗ End of LifeSpecification Comparison
| Parameter | MC9RS08KB12CWJ | MC9RS08KA4CWJ |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.32 | $1.02 |
| Core | RS08 (8-bit, HC08-compatible instruction subset) | — |
| Program Memory (Flash) | 12 KB (12K x 8) | — |
| RAM | 126 bytes | — |
| Maximum CPU Frequency | 20 MHz | — |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V | — |
| ADC | [DATA_NEEDED: ADC channels and resolution] | — |
| Timers | 8-bit timer with PWM channel | [DATA_NEEDED: timer module count] |
| Analog Comparator | Integrated | — |
| Interrupt Architecture | Single global interrupt vector | — |
| Instruction Set Features | HC08 subset + BGND (background debug) | — |
| Package | 20-SOIC (0.295 inch / 7.50 mm body width) | 20-SOIC (SOIC-20) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: temperature grade from datasheet] | -40C to +85C |
| Debug Interface | Background Debug Mode (BDM) | — |
| RoHS Status | [DATA_NEEDED: RoHS status from official source] | [DATA_NEEDED: RoHS compliance status] |
| Lead-Free | [DATA_NEEDED: lead-free reflow compatibility] | [DATA_NEEDED: lead-free status] |
| Core Architecture | — | RS08 (HC08 subset) |
| Data Bus Width | — | 8 bit |
| Maximum CPU Clock Frequency | — | 20 MHz |
| Program Memory Size | — | 4 KB (4K x 8) FLASH |
| RAM Size | — | [DATA_NEEDED: RAM size] |
| Number of I/O Pins (GPIO) | — | 4 |
| Operating Supply Voltage Range | — | 1.8 V to 5.5 V (per RS08KA family) |
| Internal Oscillator | — | Yes (integrated clock source) |
| A/D Converter | — | [DATA_NEEDED: ADC channels/resolution] |
| Communication Interfaces | — | [DATA_NEEDED: SCI/SPI/I2C modules] |
| MSL Level | — | [DATA_NEEDED: MSL rating] |
| AEC-Q100 Qualified | — | No |