MC9RS08KA4CWJR vs MC9RS08KA8CWJ Comparison
Detailed side-by-side comparison of MC9RS08KA4CWJR 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
MC9RS08KA4CWJR - RS08 8-bit MCU, 4KB Flash, 20MHz | NXP (Tape & Reel)
MC9RS08KA4CWJR ✓ ActiveNXP Semiconductors
MC9RS08KA8CWJ - 8-bit RS08 MCU, 8KB Flash, 20MHz | NXP
MC9RS08KA8CWJ ⚠ Last Time BuySpecification Comparison
| Parameter | MC9RS08KA4CWJR | MC9RS08KA8CWJ |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Last Time Buy |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.02 | $1.68 |
| Core Architecture | RS08 (HC08 subset) | RS08 (8-bit, HC08 subset) |
| Data Bus Width | 8 bit | 8 bit |
| Maximum CPU Clock Frequency | 20 MHz | — |
| Program Memory Size | 4 KB (4K x 8) FLASH | 8 KB Flash |
| RAM Size | [DATA_NEEDED: RAM size] | — |
| Number of I/O Pins (GPIO) | 4 | — |
| Package | 20-SOIC (SOIC-20) | 20-SOIC Wide (20-SOIC W, Tube) |
| Mounting Type | Surface Mount | Surface Mount (SMD/SMT) |
| Operating Supply Voltage Range | 1.8 V to 5.5 V (per RS08KA family) | — |
| Operating Temperature Range | -40C to +85C | -40 C to +85 C (Industrial) |
| 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 level] |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | [DATA_NEEDED: RoHS status from data] |
| Lead-Free | [DATA_NEEDED: lead-free status] | — |
| AEC-Q100 Qualified | No | — |
| Maximum CPU Frequency | — | 20 MHz |
| Operating Voltage Range | — | 2.5 V to 5.5 V (also stated as 2.5V/3.3V/5V) |
| 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 |