ATSAM4S4CA-CU vs ATSAM4S8BA-AU Comparison
Detailed side-by-side comparison of ATSAM4S4CA-CU by Microchip Technology and ATSAM4S8BA-AU 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
ATSAM4S4CA-CU - 120MHz Cortex-M4 MCU 256KB Flash | Microchip
ATSAM4S4CA-CU ✓ ActiveMicrochip Technology
ATSAM4S8BA-AU - ARM Cortex-M4 120MHz 512KB MCU | Microchip
ATSAM4S8BA-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAM4S4CA-CU | ATSAM4S8BA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.45 | $3.72 |
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions | 32-bit RISC with DSP extensions |
| Maximum Clock Frequency | 120 MHz | — |
| Program Memory (Flash) | 256 KB (256K x 8) | 512 KB (512K x 8) |
| SRAM | 64 KB | 128 KB |
| Supply Voltage (VDDIO/VDDANA) | 1.2 V core / 3.3 V I/O (per datasheet) | — |
| Package | 100-ball TFBGA (9x9 mm) | 64-LQFP (10x10 mm) |
| 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) | — |
| ADC | 12-bit successive approximation | 12-bit, up to 1 Msps |
| Communication Peripherals | USART, SPI, TWI (I2C), HS USB | — |
| Timers/PWM | 16-bit and 32-bit timers with PWM channels | 16-bit PWM channels |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 3 (per JEDEC J-STD-020, reflow up to 260 C) | — |
| RoHS Status | Compliant | Compliant (Green, IND TEMP per Mouser listing) |
| Lead-Free | Yes (Green / Pb-free) | — |
| Product Family Pin Compatibility | Pin-to-pin compatible with SAM7S, SAM3N, SAM3S, SAM4N devices | — |
| Core | — | ARM Cortex-M4 |
| Instruction Set | — | Thumb-2 |
| Maximum Clock Speed | — | 120 MHz |
| Instruction Cache | — | 2 KB |
| Operating Voltage | — | 1.62 V to 3.6 V |
| 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 |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| Pin-to-Pin Compatibility | — | SAM3N, SAM3S, SAM7S legacy (64-/100-pin) |