ATSAM4S8BA-AU vs ATSAM4S4CA-CU Comparison
Detailed side-by-side comparison of ATSAM4S8BA-AU by Microchip Technology and ATSAM4S4CA-CU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATSAM4S8BA-AU - ARM Cortex-M4 120MHz 512KB MCU | Microchip
ATSAM4S8BA-AU ✓ ActiveMicrochip Technology
ATSAM4S4CA-CU - 120MHz Cortex-M4 MCU 256KB Flash | Microchip
ATSAM4S4CA-CU ✓ ActiveSpecification Comparison
| Parameter | ATSAM4S8BA-AU | ATSAM4S4CA-CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.72 | $3.45 |
| Core | ARM Cortex-M4 | — |
| Core Architecture | 32-bit RISC with DSP extensions | ARM Cortex-M4 with FPU and DSP instructions |
| Instruction Set | Thumb-2 | — |
| Maximum Clock Speed | 120 MHz | — |
| Program Memory (Flash) | 512 KB (512K x 8) | 256 KB (256K x 8) |
| SRAM | 128 KB | 64 KB |
| Instruction Cache | 2 KB | — |
| Operating Voltage | 1.62 V to 3.6 V | — |
| ADC | 12-bit, up to 1 Msps | 12-bit successive approximation |
| USB | USB 2.0 Full-Speed Device with on-chip transceiver | — |
| Communication Interfaces | 2x UART, 2x TWI (I2C), 1x SPI, 1x I2S, 1x SDIO/SD/MMC | — |
| I/O Pins | 47 | — |
| Timers/PWM | 16-bit PWM channels | 16-bit and 32-bit timers with PWM channels |
| Package | 64-LQFP (10x10 mm) | 100-ball TFBGA (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) | — |
| Pin-to-Pin Compatibility | SAM3N, SAM3S, SAM7S legacy (64-/100-pin) | — |
| RoHS Status | Compliant (Green, IND TEMP per Mouser listing) | Compliant |
| Maximum Clock Frequency | — | 120 MHz |
| Supply Voltage (VDDIO/VDDANA) | — | 1.2 V core / 3.3 V I/O (per datasheet) |
| Operating Temperature Range | — | -40 C to +85 C (industrial) |
| USB Interface | — | USB 2.0 Full-Speed Device with embedded transceiver |
| External Bus Interface (EBI) | — | Supports SRAM, PSRAM, NOR Flash, NAND Flash, LCD modules |
| Touch Library Support | — | Microchip QTouch capacitive touch (buttons, sliders, wheels) |
| Communication Peripherals | — | USART, SPI, TWI (I2C), HS USB |
| MSL Level | — | 3 (per JEDEC J-STD-020, reflow up to 260 C) |
| Lead-Free | — | Yes (Green / Pb-free) |
| Product Family Pin Compatibility | — | Pin-to-pin compatible with SAM7S, SAM3N, SAM3S, SAM4N devices |