32-Bit Microcontroller
SAM L22G / L22J / L22N
Introduction
В® The SAM L22 is a series of Ultra low-power segment LCD microcontrollers using the 32-bit ARM
В®
Cortex -M0+ processor, ranging from 48-to 100-pins with up to 256KB Flash and 32KB of SRAM and to
drive up to 320 LCD segments. The SAM L22 devices operate at a maximum frequency of 32MHz and
В®
reach 2.46 CoreMark /MHz. With sophisticated power management technologies the SAM L22 devices
run down to 39ВµA/MHz (CPU running CoreMark) in active mode and down to 490nA in ultra low-power
backup mode with RTC. Features Processor
– ARM Cortex-M0+ CPU running at up to 32MHz Single-cycle hardware multiplier Micro Trace Buffer Memory Protection Unit (MPU) Memories
– 64/128/256KB in-system self-programmable Flash
– 2/4/8KB Flash Read-While-Write section
– 8/16/32KB SRAM Main Memory System
– Power-on reset (POR) and programmable brown-out detection (BOD)
– Internal and external clock options
– External Interrupt Controller (EIC) 16 external interrupts that can use any I/O-Pin – One non-maskable interrupt on one I/O-Pin Two-pin Serial Wire Debug (SWD) Low Power
– Idle, Standby, Backup, and Off sleep modes
– SleepWalking peripherals
– Battery backup support
– Two runtime selectable power/performance levels
– Embedded Buck/LDO regulator supporting on-the-fly selection …
