10.1.3 SRAM

The PIC32CM LE00/LS00/LS60 family of devices embed up to 64 KB of internal SRAM mapped at address 0x2000 0000.

Table 10-6. SRAM Memory Parameters
DeviceMemory Size [KB]
PIC32CM516464
PIC32CM2532 (LE00/LS00 only)32
PIC32CM1216 (LE00/LS00 only)16
Important: Before jumping to the Flash, the Boot ROM resets the first 4 KB of SRAM.

SRAM is composed of up to four sub-blocks which can be retained or not in Standby Low-Power mode to optimize power consumption.

Table 10-7. SRAM Sub-Blocks
DeviceSRAM Sub-blocks size [KB]
PIC32CM516416
PIC32CM2532 (LE00/LS00 only)16
PIC32CM1216 (LE00/LS00 only)4

By default, all sub-blocks are retained, but it is possible to switch them off using the Power Manager (PM).

SRAM retention is guaranteed for Watchdog, External and System Reset resets.

Important: SRAM retention is not guaranteed after Power Supply Resets (POR, BOD12, BOD12PLL and BOD33).