STM32L021D4P6 - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

STM32L021D4P6
Manufacturer

ST Microelectronics
ChipWorker Part#

CW49786937
Package

TSSOP-14
Description

MCU 32Bit ARM Cortex M0+ RISC 16KB Flash 1.8V/2.5V/3.3V 14Pin TSSOP Tube
Documentation

Datasheet

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STM32L021D4P6 Specifications

Attribute	Attribute Value

Part Number	STM32L021D4P6
Manufacturer	ST Microelectronics
ChipWorker Part#	CW49786937
Documentation	Datasheet
Number of Pins	14 Pin
Case/Package	TSSOP-14
Number of Positions	14 Position
RAM Memory Size	512 B
Number of Bits	32 Bit
Power Dissipation	210 mW
Number of ADCs	1 ADC
Number of Inputs and Outputs	11 Input IO
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	210 mW
Supply Voltage (Max)	3.6 V
Supply Voltage (Min)	1.8 V
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Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
ECCN Code	5A002A1A

Product Description

Reset and supply management
The access line ultra-low-power STM32L021x4 family incorporates the high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, high-speed embedded memories (16 Kbytes of Flash program memory, 512 bytes of data EEPROM and 2 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.
The STM32L021x4 devices provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes.
The STM32L021x4 devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, AES, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.
Moreover, the STM32L021x4 devices embed standard and advanced communication interfaces: one I2C, one SPI, one USART, and a low-power UART (LPUART).
The STM32L021x4 also include a real-time clock and a set of backup registers that remain powered in Standby mode.
The ultra-low-power STM32L021x4 devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.
**Key Features**
Ultra-low-power platform
1.65 V to 3.6 V power supply
-40 to 125 °C temperature range
0.23 μA Standby mode (2 wakeup pins)
0.29 μA Stop mode (16 wakeup lines)
0.54 μA Stop mode + RTC + 2 KB RAM retention
Down to 76 μA/MHz in Run mode
5 μs wakeup time (from Flash memory)
41 μA 12-bit ADC conversion at 10 ksps
Core: Arm® 32-bit Cortex®-M0+
From 32 kHz to 32 MHz max.
0.95 DMIPS/MHz
Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
Ultralow power POR/PDR
Programmable voltage detector (PVD)
Clock sources
0 to 32 MHz external clock
32 kHz oscillator for RTC with calibration
High speed internal 16 MHz factory-trimmed RC (+/- 1%)
Internal low-power 37 kHz RC
Internal multispeed low-power 65 kHz to 4.2 MHz RC
PLL for CPU clock
Pre-programmed bootloader
USART, SPI supported
Development support
Serial wire debug supported
Up to 28 fast I/Os (23 I/Os 5V tolerant)
Memories
16 KB Flash memory with ECC
2 KB RAM
512 B of data EEPROM with ECC
20-byte backup register
Sector protection against R/W operation
Rich Analog peripherals
12-bit ADC 1.14 Msps up to 10 channels (down to 1.65 V)
2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V)
5-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers, AES
4x peripherals communication interface
1x USART (ISO 7816, IrDA), 1x UART (low power)
1x SPI 16 Mbits/s
1x I2C (SMBus/PMBus)
7x timers: 1x 16-bit with up to 4 channels, 1x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC and 2x watchdogs (independent/window)
CRC calculation unit, 96-bit unique ID
Hardware Encryption Engine AES 128-bit
All packages are ECOPACK®2

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