STM32L151ZET6 - 32MHz Cortex-M3 512KB MCU | STMicroelectronics
N.º da peça: STM32L151ZET6 ✓ AtivoSTM32L151ZET6 Visão geral
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and communication interfaces on one device. The STM32L1 family belongs to the broader hierarchy of microcontroller, embedded processor, semiconductor, and electronic-component categories. The STM32L151ZET6 is intended for designs that require substantial embedded memory, a large pin count, low-power operation, USB connectivity, and analog signal conditioning in a single package.
The STM32L151ZET6 combines a 32 MHz ARM Cortex-M3 processor with 512 KB of Flash and 80 KB of SRAM. Its 144-pin LQFP package provides 115 GPIO according to the verified listing, enabling extensive connections to sensors, actuators, human-interface interfaces, communications equipment, and external memory or peripheral devices. The integrated USB interface and dual operational amplifiers reduce the need for separate support components in suitable USB-enabled and analog designs.
The STM32L1 architecture is positioned for low-power embedded systems where energy efficiency and control capability are both important. Its supply range, conversion resources, GPIO count, and memory capacity make it suitable for industrial control, data acquisition, USB peripherals, communications equipment, and embedded instrumentation. The large 144-LQFP footprint is useful when the design requires many discrete I/O connections and offers straightforward assembly in through-hole-compatible production processes.
Because the verified data does not include the complete electrical limits, peripheral map, watchdog details, clock-tree configuration, or a manufacturer-authoritative pinout, those values should be confirmed in the STMicroelectronics device documentation before schematic capture or PCB release. The 115-GPIO figure, 512 KB Flash, 80 KB SRAM, 32 MHz maximum CPU frequency, USB capability, dual operational amplifiers, and -40 °C to +85 °C range are directly reflected in the supplied distributor information. Pricing shown here reflects the quoted distributor unit price as of 2026-10-30 and may change with quantity and market conditions.
This page combines verified sourcing data, practical application fit, package information, and a conservative comparison of available drop-in information. The replacement search identified STM32L152ZET6 as the closest documented same-package family alternative, while the broader cross-reference results caution that pin compatibility alone does not guarantee code, timing, or peripheral equivalence.
Alternativas drop-in para STM32L151ZET6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
STM32L152ZET6
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32L151ZET6 Classificações máximas e características elétricas
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Manufacturer | STMicroelectronics |
| Maximum CPU Frequency | 32 MHz |
| Core | ARM Cortex-M3 |
| Flash Memory | 512 KB |
| SRAM | 80 KB |
| Tensão de alimentação | 2.5 V to 3.3 V |
| GPIO Count | 115 |
| ADC Resolution | 12-bit |
| Additional Conversion Resource | 12-bit |
| USB | Supported |
| Operational Amplifiers | 2 integrated operational amplifiers |
| Faixa de temperatura de operação | -40 °C to +85 °C |
| Encapsulamento | 144-LQFP (20 x 20 mm) |
| Tipo de montagem | Surface mount |
| Architecture | 32-bit RISC |
| Status RoHS | RoHS |
| Unit Price | $14.2635 as of 2026-10-30 |
| Packaging | Tray |
| Stock Listing | 7,936 pieces |
| Lead Time | To be confirmed |
Guia de Configuração de Pinos do STM32L151ZET6 144-lqfp (20 x 20 mm)
Configuração de pinos para STM32L151ZET6 (pacote 144-lqfp (20 x 20 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para STM32L151ZET6.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
STM32L151ZET6 é adequado para 6 aplicaçãos: Industrial Control and Automation, USB Data Acquisition and Instrumentation, Analog Sensor Conditioning, Communications and Network Interface Equipment, Human Interface and Display Control, Motor Drives and Motion Control.
Industrial Control and Automation
The STM32L151ZET6 fits industrial controllers that need a 32 MHz ARM Cortex-M3 core, 512 KB of Flash, 80 KB of SRAM, and 115 GPIO in one 144-LQFP device. The verified -40 °C to +85 °C operating range supports equipment designed for extended commercial temperature conditions. A large GPIO count can connect sensors, discrete inputs, output drivers, status indicators, and communications peripherals without relying on several I/O expanders. Its low-power MCU positioning also helps balance processing capability against energy use in continuously operating equipment. Before layout, engineers should verify the exact power pins, ADC channels, alternate-function mappings, oscillator requirements, and peripheral assignments in the manufacturer documentation.
Recomendado
USB Data Acquisition and Instrumentation
STM32L151ZET6 is suitable for USB-connected data-acquisition equipment because the verified device specification includes USB, a 32 MHz Cortex-M3 core, 512 KB of Flash, and 80 KB of SRAM. These resources allow firmware, buffers, control logic, and USB communication code to coexist on one MCU. Its 115 GPIO and 12-bit conversion resources provide a broad interface surface for analog sensors, external converters, displays, and communication transceivers. The 144-LQFP package also leaves abundant pins for USB data routing, controls, and auxiliary I/O, although the complete pin map is not supplied here and must be checked against the manufacturer datasheet.
Recomendado
Analog Sensor Conditioning
The STM32L151ZET6 can serve as the control hub for analog sensor systems because the verified listing identifies 12-bit conversion resources and two integrated operational amplifiers. Those amplifiers may support input conditioning, buffering, or gain stages when their electrical limits and configuration requirements are suitable. The 512 KB Flash and 80 KB SRAM provide room for calibration tables, filtering, diagnostics, and protocol handling, while 115 GPIO supports sensor selection, reference control, and communications. Engineers should treat the ADC and amplifier details as verified feature identifiers only, because input ranges, accuracy, bandwidth, output limits, and multiplexing requirements are not present in the supplied data and require review of the official datasheet.
Recomendado
Communications and Network Interface Equipment
STM32L151ZET6 is appropriate for communications equipment requiring a large pin count and embedded memory while operating at low power. Its 115 GPIO can support status LEDs, control inputs, relay or transceiver enables, and multiple bus signals, while the 32 MHz Cortex-M3 executes protocol handling and the 512 KB Flash stores firmware and configuration data. The MCU can act as a supervisory controller around Ethernet, serial, wireless, or isolated-interface modules rather than implementing every interface internally. For each implementation, verify the required transceiver protocol, timing, interrupt resources, and pin multiplexing in the official pinout and peripheral documentation.
Recomendado
Human Interface and Display Control
STM32L151ZET6 can control display panels, buttons, encoders, indicators, and alarm outputs because the verified 115-GPIO count provides substantially more parallel connections than a small-package MCU. The 32 MHz core and 80 KB SRAM support responsive graphical or parameter-management logic, while USB can simplify connection to a host during configuration, logging, or diagnostic functions. The large LQFP package is advantageous where the PCB is through-hole compatible and numerous signal paths must be exposed. Firmware should still validate display timing, interrupt allocation, and shared peripheral conflicts because those detailed constraints are not included in the supplied distributor snippets.
Recomendado
Motor Drives and Motion Control
STM32L151ZET6 is applicable to compact motor-drive and motion-control systems where real-time control, many I/O points, and low-power operation are required. The 32 MHz Cortex-M3 can execute control loops, the 512 KB Flash accommodates application firmware, and the 115 GPIO can connect encoders, hall sensors, limit switches, gate-driver enables, and status signals. The verified dual operational amplifiers may assist with current or position feedback conditioning, subject to the datasheet limits. The 144-LQFP package offers a practical external interface density, but motor designs must separately verify timer channels, ADC trigger paths, fault handling, and analog grounding in the manufacturer documentation.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32L151ZET6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STM32L152ZET6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | 144-LQFP (20 x 20 mm) | 144-LQFP (20 x 20 mm) |
Principais diferenciais
- Large verified GPIO resource in a 144-LQFP device (vs STM32L152ZET6)
- Confirmed integrated analog resources (vs STM32L152ZET6)
- Verified USB-enabled low-power MCU configuration (vs STM32L152ZET6)
Notas de projeto
Use the confirmed 144-LQFP 20 x 20 mm footprint and follow the manufacturer land pattern exactly. Keep decoupling and power-distribution geometry close to the device pins, separate noisy switching or motor-drive return currents from analog and MCU ground paths, and route USB differential signals as a controlled pair. Because the supplied data does not provide the complete pin map, verify every net against the official package drawing before releasing the PCB.
Plan the power tree around the verified 2.5 V to 3.3 V supply range, but confirm exact minimum and maximum voltage, regulator tolerances, and current limits in the manufacturer datasheet. USB-connected designs must account for the additional system and cable-connection considerations at the USB power entry point. Do not infer regulator capacity or startup behavior from the distributor listing alone.
The 115-GPIO configuration makes external routing and net-tie planning especially important. Group communications and USB routes away from switching supplies, motor-driver outputs, and high-current traces; maintain controlled return paths under high-speed interfaces; and reserve accessible test points for reset, clock, and debug signals. Confirm the supported debug and boot interfaces and their exact pins before finalizing the board.
Do not treat the listed 12-bit conversion resources and two operational amplifiers as a complete analog specification. The ADC input range, accuracy, sample rate, amplifier bandwidth, output swing, and common-mode limits are not supplied and must be checked in the datasheet. Also verify brownout behavior, clock startup options, firmware support, and all peripheral pin multiplexing before a hardware revision is released.
Informações de conformidade
The supplied JLCPCB product result identifies STM32L151ZET6 as RoHS. No explicit REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was included in the provided verified data.