MC9RS08KA4CWJ vs MC9RS08KB4CWJ Comparison
Detailed side-by-side comparison of MC9RS08KA4CWJ by NXP Semiconductors and MC9RS08KB4CWJ 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
MC9RS08KB4CWJ - 8-bit RS08 MCU, 4KB Flash, 20MHz | NXP
MC9RS08KB4CWJ ✗ End of LifeSpecification Comparison
| Parameter | MC9RS08KA4CWJ | MC9RS08KB4CWJ |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | End of Life | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.02 | $1.49 |
| Core Architecture | RS08 (HC08 subset) | — |
| Data Bus Width | 8 bit | 8-bit |
| Maximum CPU Clock Frequency | 20 MHz | — |
| Program Memory Size | 4 KB (4K x 8) FLASH | 4 KB (4K x 8) Flash |
| RAM Size | [DATA_NEEDED: RAM size] | 126 B |
| Number of I/O Pins (GPIO) | 4 | — |
| Package | 20-SOIC (SOIC-20) | 20-pin SOIC (wide-body, tube) |
| 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 | — |
| Internal Oscillator | Yes (integrated clock source) | — |
| A/D Converter | [DATA_NEEDED: ADC channels/resolution] | — |
| Timers | [DATA_NEEDED: timer module count] | — |
| Communication Interfaces | [DATA_NEEDED: SCI/SPI/I2C modules] | — |
| MSL Level | [DATA_NEEDED: MSL rating] | [DATA_NEEDED: MSL moisture sensitivity level] |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | [DATA_NEEDED: RoHS compliance status] |
| Lead-Free | [DATA_NEEDED: lead-free status] | — |
| AEC-Q100 Qualified | No | — |
| Core Processor | — | RS08 |
| Core Size | — | 8-bit |
| CPU Speed | — | 20 MHz |
| EEPROM Size | — | None (Flash-based) |
| Number of I/O | — | 18 |
| Supply Voltage Range | — | 2.5 V to 5.5 V |
| Connectivity | — | I2C, SPI |
| Peripherals | — | LVD, POR, PWM, WDT |
| Instruction Set | — | HC08 subset + BGND |
| Operating Temperature | — | -40C to +85C |
| Debug Interface | — | Background Debug Mode (BDM) |