ATSAM4C16CA-AUR Microchip Integrated Circuit (Quad Flat Packages) In Stock
SAM4C series 32-bit ARM Cortex-M4 dual-core microcontroller operating from 1.08 V to 1.32 V core supply, housed in a 100-pin LQFP package with 0.5 mm pitch. Offers 1 MB flash memory and rich peripheral set for smart energy metering. In stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 100
- Lifecycle
- OBSOLETE
- Datasheet
- ATSAM4C16CA-AUR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual ARM Cortex-M4 cores enable parallel execution of metering algorithms and communication stacks, reducing worst-case latency in smart meter designs
- Ultra-low core supply voltage range of 1.08 V to 1.32 V minimises dynamic power consumption in battery-backed or energy-harvesting applications
- 100-pin LQFP-100 (0.5 mm pitch, 14 mm × 14 mm body) provides a dense I/O complement including multiple USART, SPI, TWI, and timer peripherals for complex embedded systems
Applications
ATSAM4C16CA-AUR is optimised for smart energy metering systems including electricity meters, power quality analysers, and AMI (Advanced Metering Infrastructure) endpoints that require dual-core processing to run metrology algorithms alongside DLMS/COSEM communication stacks simultaneously. Its compact LQFP-100 footprint and low-voltage 1.08 V to 1.32 V core supply also make it suitable for industrial gateways and edge IoT nodes requiring high computational density with minimal power draw.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| JESD-30 Code | S-PQFP-G100 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP100,.63SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 1.32V |
| Supply Voltage-Min | 1.08V |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | SoC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A992.C |
| HTS Code | 8542.31.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ATSAM4C16CA-AUR:
Frequently Asked Questions
How does the dual-core architecture of ATSAM4C16CA-AUR improve throughput in a smart electricity meter?
ATSAM4C16CA-AUR uses 2 ARM Cortex-M4 cores that can execute independently, allowing Core 0 to continuously run IEC 62053 Class 0.5S metrology calculations at full speed while Core 1 handles DLMS/COSEM packet assembly and PLC/RF communication—tasks that would otherwise introduce latency if time-shared on a single core. This separation allows meter sampling rates above 4 kHz per phase without missing communication deadlines.
What core supply voltage range does ATSAM4C16CA-AUR require, and how does that affect PCB power design?
The core operates between 1.08 V and 1.32 V, requiring a low-dropout regulator or DC-DC converter with tighter output tolerance than a standard 3.3 V LDO. Designers typically use a dedicated 1.2 V switching regulator with ±5% accuracy to stay within the 240 mV window, while I/O banks operate at 3.3 V independently. This two-rail design is standard for advanced MCUs and adds one additional regulator to the BOM.
For a new smart meter design, when should an engineer choose ATSAM4C16CA-AUR over a single-core M4 MCU?
ATSAM4C16CA-AUR is the stronger choice when the firmware must run metrology sampling at high priority while simultaneously managing a communication stack such as PRIME PLC or G3-PLC that has its own real-time deadlines. A single-core MCU with RTOS context switching introduces jitter of tens of microseconds, which degrades IEC 62053 Class 0.2 accuracy at 50 Hz or 60 Hz fundamental frequency. The dual-core design eliminates this trade-off.
What is the LQFP-100 package body size of ATSAM4C16CA-AUR, and how does pin pitch affect assembly yield?
ATSAM4C16CA-AUR uses an LQFP-100 package with a 0.5 mm lead pitch and a square body measuring approximately 14 mm × 14 mm. The 0.5 mm pitch requires paste stencil apertures of about 0.25 mm × 1.5 mm, achievable with standard SMT lines using a Type 4 solder paste and well-maintained stencils. First-pass solder joint yield above 99.9% is typical in controlled production environments following IPC-A-610 Class 2 inspection criteria.
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