Configuration Summary

  SAM L22N SAM L22J SAM L22G
Pins 100 64

48 (QFN and TQFP)
49 (WLCSP)
General Purpose I/O-pins (GPIOs)(1) 82 50 36
Flash 256/128/64KB 256/128/64KB 256/128/64KB
Flash RWW section 8/4/2KB 8/4/2KB 8/4/2KB
System SRAM 32/16/8KB 32/16/8KB 32/16/8KB
Segment LCD (SLCD) Pins(1) 48 selectable from 52 31 23
Timer Counter (TC) instances 4 4 4
Waveform output channels per TC instance 2 2 2
Timer Counter for Control (TCC) instances 1 1 1
Waveform output channels per TCC 4 4 4
DMA channels 16 16 16
USB interface 1 1 1
AES engine 1 1 1
Configurable Custom Logic (CCL) (LUTs) 4 4 4
True Random Generator (TRNG) 1 1 1
Serial Communication Interface (SERCOM) instances 6 4(2) 4(2)
Analog-to-Digital Converter (ADC) channels 20 16 10
Two Analog Comparators (AC) with number of external input channels 4 4 2
Tamper Input Pins 5 3 2
Wake-up Pins with debouncing 5 3 2
Real-Time Counter (RTC) Yes Yes Yes
RTC alarms 1 1 1
RTC compare values

One 32-bit value or

two 16-bit values

One 32-bit value or

two 16-bit values

One 32-bit value or

two 16-bit values
External Interrupt lines 16 16 16
Peripheral Touch Controller (PTC) channels (X- x Y-lines) for mutual capacitance(3) 256 (16x16)

182 (13x14)

132 (11x12)
Peripheral Touch Controller (PTC) channels for self capacitance (Y-lines only)(4) 24 19 15
Maximum CPU frequency 32MHz 32MHz 32MHz
Packages

TQFP

UFBGA

QFN

TQFP

QFN

TQFP

WLCSP
Oscillators

32.768kHz crystal oscillator (XOSC32K)

0.4-32MHz crystal oscillator (XOSC)

32KHz ultra-low-power internal oscillator (OSCULP32K)

16/12/8/4MHz high-accuracy internal oscillator (OSC16M)

48MHz Digital Frequency Locked Loop (DFLL48M)

96MHz Fractional Digital Phased Locked Loop (FDPLL96M)
Event System channels 8 8 8
SW Debug Interface Yes Yes Yes
Watchdog Timer (WDT) Yes Yes Yes
Note:
  1. 1.L22J, L22G: All SLCD Pins can be configured also as GPIOs. L22N: 44 SLCD Pins can be configured as GPIOs, 8 SLCD Pins can be used as GP input.
  2. 2.SAM L22N: SERCOM[5:0]. L22G, L22J: SERCOM[3:0].
  3. 3.The number of X- and Y-lines depends on the configuration of the device, as some I/O lines can be configured as either X-lines or Y-lines.
  4. 4.The number of Y-lines depends on the configuration of the device, as some I/O lines can be configured as either X-lines or Y-lines. The number given here is the maximum number of Y-lines that can be obtained.