MC9RS08KA4CWJ vs MC9RS08KB12CWJ Comparison
Detailed side-by-side comparison of MC9RS08KA4CWJ by NXP Semiconductors and MC9RS08KB12CWJ 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
MC9RS08KA4CWJ - RS08 8-bit MCU, 4KB Flash, 20MHz | NXP
MC9RS08KA4CWJ ✗ End of LifeNXP Semiconductors
MC9RS08KB12CWJ - 8-bit RS08 MCU, 12KB Flash, 20MHz | NXP SOIC-20
MC9RS08KB12CWJ ✓ ActiveSpecification Comparison
| Parameter | MC9RS08KA4CWJ | MC9RS08KB12CWJ |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | End of Life | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.02 | $2.32 |
| 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 | — |
| Package | 20-SOIC (SOIC-20) | 20-SOIC (0.295 inch / 7.50 mm body width) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Supply Voltage Range | 1.8 V to 5.5 V (per RS08KA family) | — |
| Operating Temperature Range | -40C to +85C | [DATA_NEEDED: temperature grade from datasheet] |
| Internal Oscillator | Yes (integrated clock source) | — |
| A/D Converter | [DATA_NEEDED: ADC channels/resolution] | — |
| Timers | [DATA_NEEDED: timer module count] | 8-bit timer with PWM channel |
| Communication Interfaces | [DATA_NEEDED: SCI/SPI/I2C modules] | — |
| MSL Level | [DATA_NEEDED: MSL rating] | — |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | [DATA_NEEDED: RoHS status from official source] |
| Lead-Free | [DATA_NEEDED: lead-free status] | [DATA_NEEDED: lead-free reflow compatibility] |
| AEC-Q100 Qualified | No | — |
| 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] |
| Analog Comparator | — | Integrated |
| Interrupt Architecture | — | Single global interrupt vector |
| Instruction Set Features | — | HC08 subset + BGND (background debug) |
| Debug Interface | — | Background Debug Mode (BDM) |