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The ultra-low-power STM32L073RZT6 microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance Arm Cortex-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (up to 192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM and 20 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.
The STM32L073RZT6 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 STM32L073RZT6 devices offer several analog features, one 12-bit ADC with hardware oversampling, two DACs, two ultra-low-power comparators, several timers, and one low-power timer (LPTIM), four general-purpose 16-bit timers, and two basic 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.
Applications:
- Gas/water meters and industrial sensors
- Healthcare and fitness equipment
- Remote control and user interface
- PC peripherals, gaming, GPS equipment
- Alarm system, wired and wireless sensors, video intercom
Features:
- Ultra-low-power platform
- Pre-programmed bootloader
- Development support
- Serial wire debug supported
- High speed internal 16 MHz factory-trimmed RC
- Rich Analog peripherals
- CRC calculation unit, 96-bit unique ID
- True RNG and firewall protection
- Supporting ADC, SPI, I2C, USART, DAC, Timers
Specifications:
- Model: STM32L073RZT6
- power supply: 1.65 V to 3.6 V
- temperature range: 40 to 125 °C
- Core: Arm 32-bit Cortex-M0+ with MPU
- Core frequnency: 32 kHz up to 32 MHz max
- Memory: 20-Kbyte RAM, 6 Kbytes of data EEPROM with ECC
- Clock sources: 1 to 25 MHz crystal oscillator
Packages Includes:
1 x STM32L073RZT6 Microcontrollers
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The ULN2003A is an array of seven NPN Darlington transistors capable of 500mA, 50V output. It features common-cathode flyback diodes for switching inductive loads.
Typical Applications
| | Excellent chip to create multiple outputs from limited IO pins of microcontrollers.
The 74HC595; 74HCT595 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. Both the shift and storage register have separate clocks. The device features a serial input (DS) and a serial output (Q7S) to enable cascading and an asynchronous reset MR input. A LOW on MR will reset the shift register. Data is shifted on the LOW-to-HIGH transitions of the SHCP input. The data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. Data in the storage register appears at the output whenever the output enable input (OE) is LOW. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the registers. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. |
