MC9RS08KB4CWJ vs MC9RS08KA2CDB Comparison
Detailed side-by-side comparison of MC9RS08KB4CWJ by NXP Semiconductors and MC9RS08KA2CDB 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
MC9RS08KB4CWJ - 8-bit RS08 MCU, 4KB Flash, 20MHz | NXP
MC9RS08KB4CWJ ✗ End of Life
Specification Comparison
| Parameter | MC9RS08KB4CWJ | MC9RS08KA2CDB |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | End of Life | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.49 | $1.75 |
| Core Processor | RS08 | RS08 |
| Core Size | 8-bit | 8-bit |
| CPU Speed | 20 MHz | — |
| Program Memory Size | 4 KB (4K x 8) Flash | 2 KB (2K x 8) Flash |
| RAM Size | 126 B | 63 x 8 (63 bytes) |
| EEPROM Size | None (Flash-based) | None |
| Number of I/O | 18 | — |
| Supply Voltage Range | 2.5 V to 5.5 V | — |
| Connectivity | I2C, SPI | None (no UART, SPI, or I2C on this device) |
| Peripherals | LVD, POR, PWM, WDT | LVD, POR, WDT, ACMP |
| Instruction Set | HC08 subset + BGND | Simplified S08 + LDA/STA/CLR extensions |
| Package | 20-pin SOIC (wide-body, tube) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C | — |
| MSL Level | [DATA_NEEDED: MSL moisture sensitivity level] | [DATA_NEEDED] |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | Compliant (per distributor listing) |
| Debug Interface | Background Debug Mode (BDM) | — |
| Data Bus Width | 8-bit | — |
| Maximum CPU Frequency | — | 20 MHz (10 MHz bus, per DigiKey) |
| Number of I/O Pins | — | 4 GPIO |
| Supply Voltage (Vcc/Vdd) | — | 1.8 V to 5.5 V |
| Operating Temperature Range | — | -40C to +85C [DATA_NEEDED: full industrial grade range, datasheet not provided verbatim] |
| Package / Case | — | 6-DFN-EP (3 x 3 mm) |
| Data Converters | — | [DATA_NEEDED: ADC channels on this specific device] |
| Oscillator Type | — | Internal [DATA_NEEDED: internal oscillator tolerance] |