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
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
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
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
100-lead LQFP, 14 x 14 mm, pitch 0.5 mm
The Microchip's SAM4C4 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 256 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.
