STM32L162QD STMicroelectronics, STM32L162QD Datasheet - Page 23

• Manufacturer Part Number: STM32L162QD
• Description: Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
• Manufacturer: STMicroelectronics

Specifications of STM32L162QD

• Operating Power Supply Range: 1.65 V to 3.6 V (without BOR) or 1.8 V to 3.6 V
• 7 Modes: Sleep, Low-power run (11 μA at 32 kHz), Low-power sleep (4.4 μA), Stop with RTC, Stop (650 nA), Standby with RTC, Standby (300 nA)
• Ultralow Leakage Per I/o: 50 nA max
• Fast Wakeup Time From Stop: 8 μs
• Core: ARM 32-bit Cortex™-M3 CPU
• Dma: 12-channel DMA controller
• 11 Timers: one 32-bit and six 16-bit general-purpose timers, two 16-bit basic timers, two watchdog timers (independent and window)

STM32L162VD, STM32L162ZD, STM32L162QD, STM32L162RD
3.15
3.16
3.17
System configuration controller and routing interface
The system configuration controller provides the capability to remap some alternate
functions on different I/O ports.
The highly flexible routing interface allows the application firmware to control the routing of
different I/Os to the TIM2, TIM3 and TIM4 timer input captures. It also controls the routing of
internal analog signals to ADC1, COMP1 and COMP2 and the internal reference voltage
V
Touch sensing
The STM32L162xD devices provide a simple solution for adding capacitive sensing
functionality to any application. Capacitive sensing technology is able to detect finger
presence near an electrode which is protected from direct touch by a dielectric (glass,
plastic, ...). The capacitive variation introduced by the finger (or any conductive object) is
measured using a proven implementation based on a surface charge transfer acquisition
principle. It consists of charging the electrode capacitance and then transferring a part of the
accumulated charges into a sampling capacitor until the voltage across this capacitor has
reached a specific threshold. In the STM32L162xD, this acquisition is managed directly by
the GPIOs, timers and analog I/O groups (see
and routing
Reliable touch sensing solution can be quickly and easily implemented using the free
STM32 touch sensing firmware library.
AES
The AES Hardware Accelerator can be used to encrypt and decrypt data using the AES
algorithm (compatible with FIPS PUB 197, 2001 Nov 26).
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AES data flow can be served by 2ch (D
REFINT
Key scheduler
Key derivation for decryption
128-bit data block processed
128-bit key length
213 clock cycles to encrypt/decrypt one 128-bit block
Electronic codebook (ECB), cypher block chaining (CBC), and counter mode (CTR)
supported by hardware.
.
interface).
Doc ID 022268 Rev 2
IN
/D
OUT
Section 3.15: System configuration controller
) of the DMA2 controller
Functional overview
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