Microchip Technology, Inc. ATSAM4C8

The Microchip's SAM4C8 microcontroller is a system-on-chip solution for smart energy applications built around two high performance 32-bit ARM® Cortex®-M4 RISC processors. These devices operate at a maximum speed of 120 MHz and feature 512 Kbytes of embedded Flash, 152 Kbytes of SRAM and on-chip cache for each core. The dual ARM® Cortex®-M4 architecture allows for integration of application layer, communications layers and security functions in a single device, with the ability to extend program and data memory via a 16-bit external bus interface. Additional Features Application / Master Core ARM Cortex-M4 running at up to 120MHz Memory Protection Unit (MPU) DSP Instruction Thumb®-2 instruction set Instruction and Data Cache Controller with 2 Kbytes Cache Memory 512Kbytes of flash, 128Kbytes of SRAM, 8Kbytes of ROM Coprocessor (provides ability to separate application, communication or metrology functions) ARM Cortex-M4F IEEE 754 Compliant, Single precision Floating-Point Unit (FPU) DSP Instruction Thumb-2 instruction set Instruction and Data Cache Controller with 2 Kbytes Cache Memory 16K+8K bytes of SRAM Symmetrical/Asynchro nous Dual Core Architecture Interrupt-based Inter-processor Communication Asynchronous Clocking One Interrupt Controller (NVIC) for each core Each Peripheral IRQs routed to each NVIC Inputs Cryptography High performance AES 128 to 256 with various modes (GCM, CBC, ECB, CFB, CBC-MAC, CTR) TRNG (up to 38 Mbit/s stream, with tested Diehard and FIPS) Public Key Crypto accelerator and associated ROM library for RSA, ECC, DSA, ECDSA Integrity Check Module (ICM) based on Secure Hash Algorithm (SHA1, SHA224, SHA256), DMA assisted Safety Up to four physical Anti-tamper Detection I/Os with Time Stamping and Immediate Clear of General Backup Registers Security Bit for Device Protection from JTAG Accesses Shared System Controller Power Supply Embedded Core and LCD Voltage Regulator for single supply operation Power-on-Reset (POR), Brownout Detector (BOD) and Dual Watchdog for safe operation Ultra-low-power Backup mode (< 0.5 µA Typical @ 25ºC) Clock Optional 3 to 20 MHz quartz or ceramic resonator oscillators with clock failure detection Ultra-low-power 32.768 kHz crystal oscillator for RTC with frequency monitoring High-precision 4/8/12 MHz factory-trimmed internal RC oscillator with on-the-fly trimming capability One high-frequency PLL up to 240 MHz, one 8 MHz PLL with internal 32 kHz input Low-power slow clock internal RC oscillator as permanent clock Ultra-low-power RTC with Gregorian and Persian Calendar, Waveform Generation and Clock Calibration Up to 23 Peripheral DMA (PDC) Channels Shared Peripherals One Segmented LCD Controller Display capacity of 50 segments and 6 common terminals Software-selectable LCD output voltage (Contrast) Can be used in Backup mode Up to five USARTs with ISO7816, IrDA®, RS-485, SPI and Manchester Mode Two 2-wire UARTs Two 400 kHz Master/Slave and Multi-Master Two-wire Interfaces (I2C compatible) Up to seven Serial Peripheral Interfaces (SPI) Two 3-channel 16-bit Timer/Counters with Capture, Waveform, Compare and PWM modes Quadrature Decoder Logic and 2-bit Gray Up/Down Counter for Stepper Motor 4-channel 16-bit Pulse Width Modulator 32-bit Real-time Timer Analog Conversion Block 8-channel, 500 kS/s, Low-power, 10-bit SAR ADC with Digital averager providing 12-bit resolution at 30 kS/s Software Controlled On-chip Reference ranging from 1.6V to 3.4V Temperature Sensor and Backup Battery Voltage Measurement Channel I/O Up to 74 I/O lines with External Interrupt Capability (edge or level sensitivity), Schmitt Trigger, Internal Pull-up/pull-down, Debouncing, Glitch Filtering and On-die Series Resistor Termination Package 100-lead LQFP, 14 x 14 mm, pitch 0.5 mm