STM32L152ZCT6 - 32MHz Cortex-M3 256KB MCU | STMicroelectronics
Référence : STM32L152ZCT6 ✓ ActifSTM32L152ZCT6 Présentation
A microcontroller is a programmable system-on-chip containing a processor core, memory, and peripherals such as communications interfaces, timers, and analog converters. The STM32L152 belongs to the STM32L1 low-power MCU family, with the Cortex-M3 core providing a 32-bit RISC processing architecture. Its 256 KB program memory is organized as 256K by 8 bits, while the 144-pin package provides access to a broad selection of GPIO and peripheral functions.
The verified product data identifies a maximum core frequency of 32 MHz, an operating supply value of 3 V, USB and LCD support, and a fast 8 microsecond wake-up time. These features distinguish the part for portable instruments, connected embedded controls, industrial data-acquisition equipment, and human-machine-interface designs. The USB interface can support direct host or device connectivity, while LCD connectivity reduces the component count required for display-based products.
The Cortex-M3 core executes 32-bit instructions and operates at 32 MHz. The STM32L152 is positioned as an ultra-low-power platform, making power-conscious operation a central design consideration alongside processing performance. The manufacturer datasheet should be consulted for detailed clock-tree limits, peripheral electrical characteristics, GPIO alternate-function assignments, current consumption, and operating-temperature limits that are not included in the supplied distributor summaries.
Typical uses include USB-connected portable measurement devices, industrial control panels with LCD feedback, data loggers, low-power sensor nodes, and embedded human-machine interfaces. The 144-pin LQFP package offers extensive I/O capacity compared with smaller MCU packages, although its 20 mm by 20 mm footprint requires more PCB area than QFN alternatives. The package also provides exposed leads that simplify visual inspection and rework compared with fine-pitch no-lead packages.
Designers should verify every assigned pin against the STM32L152ZCT6 pinout and alternate-function tables before PCB release. Pay particular attention to USB signal routing, analog inputs, oscillator connections, supply pins, and debugging functions. Because only summarized source data is available here, voltage tolerances, RAM capacity, GPIO count, ADC channels, and package-specific thermal limits must be confirmed from the manufacturer datasheet rather than inferred from the product family.
This product page consolidates verified distributor specifications, pricing, package information, practical design guidance, and same-footprint family alternatives. It also distinguishes confirmed values from parameters that still require datasheet verification, helping engineers make procurement and design decisions without relying on unsupported assumptions.
Alternatives de remplacement direct pour STM32L152ZCT6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32L152ZCT6 (même facteur de forme et même empreinte) — différant par Flash Memory, Package, Product Type, Wake-Up Time.
STM32L152ZET6
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
STM32L151ZCT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L161ZCT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L162ZCT6
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
STM32L152ZDT6
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →STM32L152ZCT6 Valeurs maximales et caractéristiques électriques
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | STM32L1 ultra-low-power series |
| Device Family | STM32L152 |
| Processor Core | ARM Cortex-M3 |
| Architecture | 32-bit RISC |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 256 KB (256K x 8 bits) |
| Tension d'alimentation de fonctionnement | 3 V |
| Boîtier | 144-LQFP, 20 mm x 20 mm |
| Type de montage | Surface mount |
| Connectivity | USB |
| Display Support | LCD |
| ADC Resolution | 12-bit |
| Wake-Up Time | 8 microseconds |
Guide de configuration des broches du STM32L152ZCT6 144-lqfp, 20 mm x 20 mm
Configuration des broches du STM32L152ZCT6 (boîtier 144-lqfp, 20 mm x 20 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour STM32L152ZCT6.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM32L152ZCT6 convient pour 6 applications: USB Portable Measurement Instrument, Industrial Control Panel, Low-Power Sensor Node, USB Data Logger, Industrial Communication Gateway, LCD Human-Machine Interface.
USB Portable Measurement Instrument
The STM32L152ZCT6 fits portable measurement instruments that combine USB connectivity with low-power operation and a relatively high I/O count. Its verified 32 MHz ARM Cortex-M3 core supports responsive control and data processing, while 256 KB of flash accommodates embedded firmware, drivers, and instrument-control logic. The integrated USB capability can replace a separate USB interface controller, reducing board area and component count. Its 144-pin LQFP package also allows external sensors, switches, displays, and status indicators to be connected. For battery-powered products, engineers should compare active and sleep current in the manufacturer datasheet, provide local decoupling at the 3 V supply, and route the USB differential pair according to the device layout guidance.
Recommandé
Industrial Control Panel
An industrial control panel can use the STM32L152ZCT6 when it needs LCD connectivity, USB service access, and numerous discrete I/O connections. The 144-pin LQFP provides more routing options than a compact 32-pin or 64-pin MCU, allowing the controller to connect buttons, indicators, relays, sensors, and communications peripherals. Its 32 MHz Cortex-M3 core is suitable for deterministic supervisory loops, and the 256 KB flash capacity provides space for an embedded control interface. The LCD interface still requires the correct panel timing and suitable glass mapping, while USB can simplify configuration downloads. Verify available LCD and GPIO assignments in the manufacturer pin table and maintain separate analog and digital grounding practices to reduce control-panel noise coupling.
Recommandé
Low-Power Sensor Node
The STM32L152ZCT6 is suitable for a low-power sensor node that gathers measurements and communicates through USB when connected to a host. Its ultra-low-power STM32L1 positioning, 32 MHz processing capability, and 8 microsecond wake-up time support responsive sampling without requiring a continuously active high-performance processor. The 256 KB flash capacity is adequate for local drivers, calibration data, and firmware, while the 144-pin package provides additional peripheral and GPIO options for sensor conditioning. Designers should define active, idle, and shutdown operating modes and avoid keeping unused peripherals or I/O pins in states that increase leakage. USB transceiver layout, supply decoupling, and wake-up source configuration should follow the manufacturer guidance because those details are not present in the supplied distributor summaries.
Recommandé
USB Data Logger
A USB data logger benefits from the STM32L152ZCT6's 32-bit Cortex-M3 processing core, 256 KB flash memory, and USB connectivity. The processor can service acquisition tasks, manage buffered records, and present data through a USB interface without requiring a separate communications chip. Its 144-pin package offers ample connections for analog inputs, digital channels, storage-control signals, and user indicators, while the 8 microsecond wake-up time can support rapid event-driven operation. Storage medium and write-wear behavior remain the dominant system-level constraints, so buffering and wear-leveling should be designed explicitly. Verify ADC channels and pin multiplexing from the datasheet, keep sensitive analog paths away from USB and switching-node routing, and confirm the device's exact RAM size before sizing acquisition buffers.
Recommandé
Industrial Communication Gateway
The STM32L152ZCT6 can serve as the controller in a compact industrial communication gateway that exposes USB to an embedded system. Its 32 MHz Cortex-M3 core provides sufficient performance for protocol handling and supervisory logic, while the 144-pin LQFP allows connection to multiple serial interfaces, status LEDs, reset controls, and network or sensor transceivers. USB support can reduce external interface complexity, and the STM32L1 family's low-power focus suits gateways that spend significant time idle. A production design should define clock tolerance, bus idle states, connector protection, and brownout behavior before layout. The supplied information does not include the complete peripheral inventory or GPIO assignments, so engineers must check the manufacturer datasheet rather than assuming every 144 package position supports the same function.
Recommandé
LCD Human-Machine Interface
The STM32L152ZCT6 is well suited to an LCD human-machine interface because the verified product data identifies LCD connectivity alongside USB and a 144-pin package. Its 32 MHz Cortex-M3 core can animate a display and scan controls, while 256 KB of flash accommodates graphics, menus, diagnostics, and USB firmware. The large pin count offers more display, touch, keypad, and communication options than a low-pin-count MCU. Engineers should choose an LCD timing and panel interface compatible with the MCU's documented display capabilities, reserve suitable pins for touch or button inputs, and account for panel backlight current outside the MCU supply budget. Exact LCD mapping, GPIO multiplexing, RAM requirements, and timing constraints must be confirmed from the manufacturer datasheet before schematic capture.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32L152ZCT6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32L152ZET6 | STM32L151ZCT6 | STM32L161ZCT6 | STM32L162ZCT6 | STM32L152ZDT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same package family | 144-LQFP (20x20) - same package family | 144-LQFP (20x20) - same package family | 144-LQFP (20x20) - same package family | 144-LQFP (20x20) - same package family |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
Principaux différenciateurs
- Provides 256 KB of flash in a 144-pin connectivity-focused package (vs STM32L152ZDT6)
- Uses 512 KB-class family positioning only where the larger memory is justified (vs STM32L162ZCT6)
- Combines a 32 MHz Cortex-M3 core with USB and LCD connectivity (vs STM32L151ZCT6)
- Offers a large 144-pin LQFP interface without a fine-pitch QFN footprint (vs STM32L151ZCT6)
Notes de conception
Place all required input and output bypass capacitors directly adjacent to their corresponding STM32L152ZCT6 supply pins, using the values and layout recommended by the manufacturer datasheet. Keep the high-frequency return path short and connect decoupling ground to the appropriate quiet ground reference rather than routing it through a long peripheral-ground path. The 144-pin LQFP footprint has a 0.5 mm pitch, so verify paste stencil apertures, solder mask dam dimensions, and assembly clearance before release.
Assign USB, display, clock, and analog signals only after checking the exact STM32L152ZCT6 alternate-function tables. Route USB D+ and D- as a short, length-matched differential pair over a continuous reference plane, and keep the external USB connector, protection devices, and required series components in the expected signal path. Confirm package pin numbers in the manufacturer drawing rather than relying on an automatically generated symbol because the supplied snippets do not provide a complete 144-terminal assignment.
Do not treat every 144-pin STM32L1 device as an automatic substitute. The STM32L162ZCT6 has 384 KB of flash, which is 128 KB or 50% more than the target's 256 KB, while ZET6 and ZDT6 ordering options have different capacity configurations. Before replacing the target, verify package drawings, pin multiplexing, USB and LCD functions, clock limits, peripheral availability, voltage classes, firmware support, temperature grade, and lifecycle status.
Build the power budget from the manufacturer's active, sleep, and shutdown current figures rather than from the 32 MHz clock rating. The verified data reports an 8 microsecond wake-up time, which can support event-driven operation, but actual battery life also depends on sensor standby current, display load, USB attachment, and peripheral leakage. Separate analog and digital supplies where the device permits, define unused-pin states, and verify brownout and power-sequencing behavior from the datasheet.
Informations de conformité
The supplied Verified Web Data does not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for STM32L152ZCT6. These fields remain unknown rather than being inferred from the manufacturer or package.