Ensure instant access and consistent reliability of your data using CY14B101Q and PIC32MZ2048EFM100

nvSRAM 2 Click is based on the CY14B101Q, a 1-Mbit nvSRAM organized as 128K words of 8 bits, each with a nonvolatile element in each memory cell from Infineon. The nvSRAM specifies one million endurance cycles for nonvolatile cells with data retention of a minimum of 20 years. All the reads and writes to nvSRAM happen to the SRAM, which gives nvSRAM the unique capability to handle infinite writes to the memory. Besides, the benefit of nvSRAM over serial EEPROMs is that all reads and writes to nvSRAM are performed at the SPI speed with zero cycle delay. Therefore, no wait time is required after any of the memory accesses. In the event of system power loss, data from the SRAM is transferred to its nonvolatile cell using energy stored in a capacitor labeled as C2.

During the Power-Up, data from the nonvolatile cell is recalled automatically in the SRAM array and available to the user. During the Power-Down, the endurance cycle is consumed only when data transfer happens from the SRAM cells to nonvolatile cells. The memory can be accessed through a standard SPI interface that enables high clock speeds up to 40 MHz with zero cycle delay read and write cycles. It also supports the two most common modes, SPI Mode 0 and 3, and 104 MHz SPI access speed with special instructions for the read operation. The CY14B101Q uses the standard SPI opcodes for memory access. In addition to the general SPI instructions for reading and writing, it provides four special instructions: STORE, RECALL, AutoStore Disable (ASDISB), and

AutoStore Enable (ASENB). In addition to this, the nvSRAM 2 Click also has an additional HOLD pin, routed to the PWM pin of the mikroBUS™ socket labeled as HLD, used to pause the serial communication with the device without having to stop the operation of the write status register, programming, or erasing in progress. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

Curiosity PIC32 MZ EF development board is a fully integrated 32-bit development platform featuring the high-performance PIC32MZ EF Series (PIC32MZ2048EFM) that has a 2MB Flash, 512KB RAM, integrated FPU, Crypto accelerator, and excellent connectivity options. It includes an integrated programmer and debugger, requiring no additional hardware. Users can expand

functionality through MIKROE mikroBUS™ Click™ adapter boards, add Ethernet connectivity with the Microchip PHY daughter board, add WiFi connectivity capability using the Microchip expansions boards, and add audio input and output capability with Microchip audio daughter boards. These boards are fully integrated into PIC32’s powerful software framework, MPLAB Harmony,

which provides a flexible and modular interface to application development a rich set of inter-operable software stacks (TCP-IP, USB), and easy-to-use features. The Curiosity PIC32 MZ EF development board offers expansion capabilities making it an excellent choice for a rapid prototyping board in Connectivity, IOT, and general-purpose applications.