MC9RS08KB12CWJ vs MC9RS08KA8CWJ Comparison
Detailed side-by-side comparison of MC9RS08KB12CWJ by NXP Semiconductors and MC9RS08KA8CWJ 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
MC9RS08KA8CWJ - 8-bit RS08 MCU, 8KB Flash, 20MHz | NXP
MC9RS08KA8CWJ ⚠ Last Time BuySpecification Comparison
| Parameter | MC9RS08KB12CWJ | MC9RS08KA8CWJ |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Last Time Buy |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.32 | $1.68 |
| Core | RS08 (8-bit, HC08-compatible instruction subset) | — |
| Program Memory (Flash) | 12 KB (12K x 8) | — |
| RAM | 126 bytes | — |
| Maximum CPU Frequency | 20 MHz | 20 MHz |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V | 2.5 V to 5.5 V (also stated as 2.5V/3.3V/5V) |
| ADC | [DATA_NEEDED: ADC channels and resolution] | — |
| Timers | 8-bit timer with PWM channel | — |
| 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 Wide (20-SOIC W, Tube) |
| Mounting Type | Surface Mount | Surface Mount (SMD/SMT) |
| Operating Temperature Range | [DATA_NEEDED: temperature grade from datasheet] | -40 C to +85 C (Industrial) |
| Debug Interface | Background Debug Mode (BDM) | — |
| RoHS Status | [DATA_NEEDED: RoHS status from official source] | [DATA_NEEDED: RoHS status from data] |
| Lead-Free | [DATA_NEEDED: lead-free reflow compatibility] | — |
| Core Architecture | — | RS08 (8-bit, HC08 subset) |
| Data Bus Width | — | 8 bit |
| Program Memory Size | — | 8 KB Flash |
| Number of I/O Pins | — | 18 |
| Pin/Package Count | — | 20 pins |
| Instruction Set | — | Subset of HC08 with added BGND instruction |
| Peripherals | — | Keyboard Interface (KBI), Timers, Internal Clock Source |
| Packaging Method | — | Tube |
| MSL Level | — | [DATA_NEEDED: MSL level] |