EFM8UB20F64G-B-QFN32 vs EFM8UB20F64G-B-QFN32R Comparison
Detailed side-by-side comparison of EFM8UB20F64G-B-QFN32 by Silicon Labs and EFM8UB20F64G-B-QFN32R by Silicon Labs. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Silicon Labs
EFM8UB20F64G-B-QFN32 - 48MHz USB 8051 MCU, 64KB Flash | Silicon Labs
EFM8UB20F64G-B-QFN32 ✓ ActiveSilicon Labs
EFM8UB20F64G-B-QFN32R - 48MHz 8051 USB MCU, 64kB Flash | Silicon Labs
EFM8UB20F64G-B-QFN32R ✓ ActiveSpecification Comparison
| Parameter | EFM8UB20F64G-B-QFN32 | EFM8UB20F64G-B-QFN32R |
|---|---|---|
| Brand | Silicon Labs | Silicon Labs |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.15 | $2.05 |
| Core Architecture | CIP-51 (8051-compatible) | — |
| Core Width | 8-bit | — |
| Maximum CPU Clock | 48 MHz | — |
| Flash Size | 64 kB (64K x 8) | — |
| RAM Size | 4 kB XRAM + 256 B internal data RAM | — |
| Operating Voltage | [DATA_NEEDED: VDD operating range] | — |
| Operating Temperature | -40C to +105C (Grade B) | — |
| Digital I/O Pins | 25 | 25 |
| Package | 32-pin QFN (5x5 mm) | 32-QFN (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| USB Interface | USB 2.0 Full-Speed (12 Mbps) device, integrated PHY | USB 2.0 Full-Speed (12 Mbps) Device with on-chip transceiver |
| ADC | 10-bit SAR, 200 ksps, 20 channels with differential inputs | 10-bit differential SAR, 20 channels, 200 ksps |
| Timers | 6 x 16-bit | 6 x 16-bit |
| PCA Channels | 5 (PWM/capture) | 5 |
| Analog Comparators | 2 with adjustable reference | 2 with adjustable reference |
| DMA Channels | 4 | — |
| Serial Interfaces | I2C, SPI, UART, USB | — |
| External Memory Interface | Yes (EMIF) | — |
| RoHS Status | Compliant | — |
| MSL Level | [DATA_NEEDED: MSL rating] | — |
| Core Processor | — | CIP-51 8051 (pipelined) |
| Core Size | — | 8-bit |
| Maximum Clock Speed | — | 48 MHz |
| Program Memory (Flash) | — | 64 kB |
| Data RAM (XRAM) | — | 4 kB |
| Operating Temperature Grade | — | -40C to +85C (B grade) |
| Supply Voltage | — | 2.7 V to 5.25 V |
| Communication Peripherals | — | I2C, SMBus, SPI, UART/USART, USB |
| Packaging | — | Tape & Reel (1,500/reel) |