STMicroelectronics

STM32L4R5ZIT6P - Cortex-M4 MCU 120MHz 2MB Flash | STMicroelectronics

Артикул: STM32L4R5ZIT6P ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
1.71 V to 3.6 V Vdss 144-LQFP (20 x 20 mm) Package 120 MHz Speed 2 MB (2M x 8) Memory
От $9.3 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-10
Оптовые цены
Кол-во Цена за ед. Итого
1 $14.5 $14,50
10 $13.2 $132,00
100 $11.85 $1.185,00
500 $10.45 $5.225,00
1.000 $9.3 $9.300,00
ℹ️ Все цены указаны в USD

STM32L4R5ZIT6P Обзор

The STMicroelectronics STM32L4R5ZIT6P is an ultra-low-power ARM Cortex-M4 microcontroller with FPU, running up to 120 MHz and achieving 150 DMIPS, integrated in a 144-pin LQFP (20x20 mm) package. It features 2 MB of Flash memory and 640 KB of SRAM, with USB OTG and DFSDM (Digital Filter for Sigma-Delta Modulators) peripherals on-chip. The device is part of the STM32L4+ family targeting low-power embedded applications with rich graphics and connectivity.

An ultra-low-power MCU is a microcontroller specifically architected to minimize energy use across active, sleep, deep-sleep, and shutdown modes, enabling battery-powered and energy-harvesting designs. Within the system hierarchy, the STM32L4+ sits at the high end of ST's ultra-low-power line, above the STM32L0 and STM32L1 families, and below the Cortex-M7 based STM32F7/H7 high-performance lines. The Cortex-M4 core adds DSP extensions and a single-precision FPU, making it suitable for signal-processing tasks that the Cortex-M0+ cannot handle efficiently.

Key features include a 120 MHz Cortex-M4 core with FPU and MPU, 2 MB dual-bank Flash supporting read-while-write, 640 KB SRAM including 16 KB SRAM2 with parity, a 1.8V core supply with internal SMPS step-down converter for ultra-low-power Run mode, and an extensive peripheral set including USB OTG full-speed, three SPIs, three I2C, six USART/UARTs, two SAIs, one CAN, one SDMMC, and a 12-bit ADC with 5 Msps throughput. The Chrom-ART 2D graphics accelerator and OctoSPI Flash interface support modern display and memory expansion requirements.

Typical applications include low-power IoT sensor nodes, wearable health monitors, industrial HMI with TFT displays, smart meters, asset tracking with BLE or LoRa, and battery-powered data loggers. The 144-LQFP package provides generous GPIO (over 100 pins) for complex designs with multiple peripherals.

When designing with this part, evaluate the package size relative to your PCB - the 144-LQFP (20x20 mm) footprint is among the largest in the STM32 family; the smaller 64-LQFP or 48-LQFP variants of the same silicon may suffice if your GPIO budget is smaller. The internal SMPS requires careful PCB layout to minimize EMI.

Аналоги без доработки для STM32L4R5ZIT6P — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с STM32L4R5ZIT6P (тот же форм-фактор и посадочное место) — отличается по Package, ADC, Core, DAC, Maximum Clock Frequency.

STMicroelectronics
Package: 100-pin LQFP (14x14 mm)
ADC: 2x 12-bit, 5 Msps
DAC: 2x 12-bit
Сравнить с STM32L4R5ZIT6P →
STMicroelectronics
ADC: 3 x 12-bit (up to 16-bit with hardware oversampling)
Core: ARM Cortex-M4 with FPU
DAC: 2 x 12-bit
Сравнить с STM32L4R5ZIT6P →
STMicroelectronics
Package: 144-LQFP (20x20 mm)
Core: Arm 32-bit Cortex-M4 with FPU
Сравнить с STM32L4R5ZIT6P →
STMicroelectronics
Package: 144-LQFP (20x20 mm)
Core: Arm Cortex-M33 32-bit with TrustZone and FPU
Сравнить с STM32L4R5ZIT6P →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

STM32L4R5ZIT6

✅ Прямая замена ⚠️ Характеристики не проверены
STMicroelectronics
📦 144-LQFP
ARM Cortex-M4 with FPU · 120 MHz · 150 DMIPS / 273 CoreMark · 2 MB (2 M x 8) Flash · 640 KB · 1.71 V to 3.6 V · -40 °C to +85 °C (grade 6), -40 °C to +125 °C (grade 7) · 144-LQFP (20 x 20 mm)

✓ В наличии

$11.4 / шт.

Открыть даташит →

STM32L4R5ZIY6TR

✅ Прямая замена
📦 144-LQFP
same silicon, industrial-grade screening, tape-and-reel packaging

📋 Справочный аналог (нет в каталоге)

STM32L4R9ZIT6

✅ Прямая замена ⚠️ Характеристики не проверены
STMicroelectronics
📦 144-LQFP
Arm 32-bit Cortex-M4 with FPU · 120 MHz · 2 MB (2M x 8) · 640 KB · 1.71 V to 3.6 V · -40 C to +85/+125 C · 305 nA (RTC and 32x32-bit backup registers supplied) · 33 nA

✓ В наличии

$7.2 / шт.

Открыть даташит →

STM32L4S5ZIT6

✅ Прямая замена ⚠️ Характеристики не проверены
📦 144-LQFP
adds AES-256 crypto, otherwise same Cortex-M4 120 MHz / 2 MB Flash

📋 Справочный аналог (нет в каталоге)

STM32L4R5VIT6

✅ Прямая замена ⚠️ Характеристики не проверены
STMicroelectronics
📦 100-LQFP
ARM Cortex-M4 32-bit RISC with FPU · 120 MHz (150 DMIPS) · 2 MB (dual-bank, read-while-write) · 640 KB · 1.71 V to 3.6 V · 1.08 V to 3.6 V (independent VDDIO) · 100-pin LQFP (14x14 mm) · 83 (typical)

✓ В наличии

$10.45 / шт.

Открыть даташит →

STM32U575ZIT6

✅ Прямая замена ⚠️ Характеристики не проверены
STMicroelectronics
📦 144-LQFP
Arm Cortex-M33 32-bit with TrustZone and FPU · 160 MHz · 240 DMIPS · 2 MB (2M x 8) · 786 KB · 32 bit · STM32U5 · Arm TrustZone

✓ В наличии

$8.9 / шт.

Открыть даташит →

STM32L4R5ZIT6P Максимальные параметры и электрические характеристики

Core Processor ARM Cortex-M4 with FPU and MPU
Core Size 32-Bit Single-Core
Максимальная тактовая частота 120 MHz
Performance 150 DMIPS / 273 CoreMark
Flash Memory Size 2 MB (2M x 8)
SRAM Size 640 KB
Supply Voltage Range 1.71 V to 3.6 V
Диапазон рабочих температур -40C to +85C
Корпус 144-LQFP (20 x 20 mm)
Тип монтажа Surface Mount
USB USB OTG Full-Speed
ADC 12-bit, 5 Msps
DAC 12-bit
Graphics Accelerator Chrom-ART 2D accelerator
External Memory Interface OctoSPI / FSMC / SDMMC
Уровень MSL 3 (168 hours)
Статус RoHS Compliant
Lead-Free Yes

Конфигурация выводов STM32L4R5ZIT6P

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Контакт 1 PE2 — General-purpose I/O PE2, TRACECLK on some packages
Контакт 2 PE3 — General-purpose I/O PE3, TRACED0
Контакт 3 PE4 — General-purpose I/O PE4, TRACED1
Контакт 4 PE5 — General-purpose I/O PE5, TRACED2
Контакт 5 PE6 — General-purpose I/O PE6, TRACED3
Контакт 6 VBAT — RTC battery supply input
Контакт 7 PC13 — General-purpose I/O PC13, RTC tamper
Контакт 8 PC14 — General-purpose I/O PC14, OSC32_IN
Контакт 9 PC15 — General-purpose I/O PC15, OSC32_OUT
Контакт 10 VSS — Ground
Контакт 11 VDD — Digital supply voltage
Контакт 12 PH0 — General-purpose I/O PH0, OSC_IN
Контакт 13 PH1 — General-purpose I/O PH1, OSC_OUT
Контакт 14 NRST — Reset input (active low)
Контакт 15 PC0 — General-purpose I/O PC0, ADC1_IN1
Контакт 16 PC1 — General-purpose I/O PC1, ADC1_IN2
Контакт 17 PC2 — General-purpose I/O PC2, ADC1_IN3
Контакт 18 PC3 — General-purpose I/O PC3, ADC1_IN4
Контакт 19 VSSA — Analog ground
Контакт 20 VDDA — Analog supply voltage
Контакт 21 PA0 — General-purpose I/O PA0, ADC1_IN5, WKUP1
Контакт 22 PA1 — General-purpose I/O PA1, ADC1_IN6
Контакт 23 PA2 — General-purpose I/O PA2, ADC1_IN7, USART2_TX
Контакт 24 PA3 — General-purpose I/O PA3, ADC1_IN8, USART2_RX
Контакт 25 VSS — Ground
Контакт 26 VDD — Digital supply voltage
Контакт 27 PA4 — General-purpose I/O PA4, ADC1_IN9, SPI1_NSS
Контакт 28 PA5 — General-purpose I/O PA5, ADC1_IN10, SPI1_SCK
Контакт 29 PA6 — General-purpose I/O PA6, ADC1_IN11, SPI1_MISO
Контакт 30 PA7 — General-purpose I/O PA7, ADC1_IN12, SPI1_MOSI
Контакт 31 PC4 — General-purpose I/O PC4, ADC1_IN13
Контакт 32 PC5 — General-purpose I/O PC5, ADC1_IN14
Контакт 33 PB0 — General-purpose I/O PB0, ADC1_IN15
Контакт 34 PB1 — General-purpose I/O PB1, ADC1_IN16
Контакт 35 PB2 — General-purpose I/O PB2, BOOT1
Контакт 36 PE7 — General-purpose I/O PE7
Контакт 37 PE8 — General-purpose I/O PE8
Контакт 38 PE9 — General-purpose I/O PE9
Контакт 39 PE10 — General-purpose I/O PE10
Контакт 40 PE11 — General-purpose I/O PE11
Контакт 41 PE12 — General-purpose I/O PE12
Контакт 42 PE13 — General-purpose I/O PE13
Контакт 43 PE14 — General-purpose I/O PE14
Контакт 44 PE15 — General-purpose I/O PE15
Контакт 45 PB10 — General-purpose I/O PB10, I2C2_SCL
Контакт 46 PB11 — General-purpose I/O PB11, I2C2_SDA
Контакт 47 VSS — Ground
Контакт 48 VDD — Digital supply voltage
Контакт 49 PB12 — General-purpose I/O PB12, SPI2_NSS
Контакт 50 PB13 — General-purpose I/O PB13, SPI2_SCK
Контакт 51 PB14 — General-purpose I/O PB14, SPI2_MISO
Контакт 52 PB15 — General-purpose I/O PB15, SPI2_MOSI
Контакт 53 PD8 — General-purpose I/O PD8, USART3_TX
Контакт 54 PD9 — General-purpose I/O PD9, USART3_RX
Контакт 55 PD10 — General-purpose I/O PD10
Контакт 56 PD11 — General-purpose I/O PD11
Контакт 57 PD12 — General-purpose I/O PD12
Контакт 58 PD13 — General-purpose I/O PD13
Контакт 59 PD14 — General-purpose I/O PD14
Контакт 60 PD15 — General-purpose I/O PD15
Контакт 61 PC6 — General-purpose I/O PC6, USART6_TX, TIM3
Контакт 62 PC7 — General-purpose I/O PC7, USART6_RX, TIM3
Контакт 63 PC8 — General-purpose I/O PC8, SDMMC_D0
Контакт 64 PC9 — General-purpose I/O PC9, SDMMC_D1
Контакт 65 PA8 — General-purpose I/O PA8, RCC_MCO, TIM1_CH1
Контакт 66 PA9 — General-purpose I/O PA9, USART1_TX
Контакт 67 PA10 — General-purpose I/O PA10, USART1_RX
Контакт 68 PA11 — General-purpose I/O PA11, USB_DM
Контакт 69 PA12 — General-purpose I/O PA12, USB_DP
Контакт 70 PA13 — General-purpose I/O PA13, JTMS-SWDIO
Контакт 71 VSS — Ground
Контакт 72 VDD — Digital supply voltage
Контакт 73 PA14 — General-purpose I/O PA14, JTCK-SWCLK
Контакт 74 PA15 — General-purpose I/O PA15, JTDI
Контакт 75 PC10 — General-purpose I/O PC10, SDMMC_D2
Контакт 76 PC11 — General-purpose I/O PC11, SDMMC_D3
Контакт 77 PC12 — General-purpose I/O PC12, SDMMC_CK
Контакт 78 PD0 — General-purpose I/O PD0, FSMC_D2
Контакт 79 PD1 — General-purpose I/O PD1, FSMC_D3
Контакт 80 PD2 — General-purpose I/O PD2, SDMMC_CMD
Контакт 81 PD3 — General-purpose I/O PD3, FSMC_CLK
Контакт 82 PD4 — General-purpose I/O PD4, FSMC_NOE
Контакт 83 PD5 — General-purpose I/O PD5, FSMC_NWE
Контакт 84 PD6 — General-purpose I/O PD6, FSMC_NWAIT
Контакт 85 PD7 — General-purpose I/O PD7, FSMC_NE1
Контакт 86 PB3 — General-purpose I/O PB3, JTDO-SWO, TIM2_CH2
Контакт 87 PB4 — General-purpose I/O PB4, NJTRST, TIM3_CH1
Контакт 88 PB5 — General-purpose I/O PB5, TIM3_CH2
Контакт 89 PB6 — General-purpose I/O PB6, I2C1_SCL, USART1_TX
Контакт 90 PB7 — General-purpose I/O PB7, I2C1_SDA, USART1_RX
Контакт 91 BOOT0 — Boot mode selection
Контакт 92 PB8 — General-purpose I/O PB8, I2C1_SCL, TIM4
Контакт 93 PB9 — General-purpose I/O PB9, I2C1_SDA, TIM4
Контакт 94 PE0 — General-purpose I/O PE0, TIM4
Контакт 95 PE1 — General-purpose I/O PE1, TIM4
Контакт 96 VSS — Ground
Контакт 97 VDD — Digital supply voltage
Контакт 98 PF0 — General-purpose I/O PF0, FSMC_A0, I2C1_SDA
Контакт 99 PF1 — General-purpose I/O PF1, FSMC_A1, I2C1_SCL
Контакт 100 PF2 — General-purpose I/O PF2, FSMC_A2
Контакт 101 PF3 — General-purpose I/O PF3, FSMC_A3
Контакт 102 PF4 — General-purpose I/O PF4, FSMC_A4
Контакт 103 PF5 — General-purpose I/O PF5, FSMC_A5
Контакт 104 VSS — Ground
Контакт 105 VDD — Digital supply voltage
Контакт 106 PF6 — General-purpose I/O PF6, FSMC_NIORD
Контакт 107 PF7 — General-purpose I/O PF7, FSMC_NREG
Контакт 108 PF8 — General-purpose I/O PF8, FSMC_NIOWR
Контакт 109 PF9 — General-purpose I/O PF9, FSMC_CD
Контакт 110 PF10 — General-purpose I/O PF10, FSMC_INTR
Контакт 111 PH2 — General-purpose I/O PH2
Контакт 112 PH3 — General-purpose I/O PH3
Контакт 113 PH4 — General-purpose I/O PH4, I2C2_SCL
Контакт 114 PH5 — General-purpose I/O PH5, I2C2_SDA
Контакт 115 PA0_REMAP — Reserved / VREF+ on some masks
Контакт 116 PA1_REMAP — Reserved
Контакт 117 VSS — Ground
Контакт 118 VDD — Digital supply voltage
Контакт 119 PG0 — General-purpose I/O PG0, FSMC_A10
Контакт 120 PG1 — General-purpose I/O PG1, FSMC_A11
Контакт 121 PG2 — General-purpose I/O PG2, FSMC_A12
Контакт 122 PG3 — General-purpose I/O PG3, FSMC_A13
Контакт 123 PG4 — General-purpose I/O PG4, FSMC_A14
Контакт 124 PG5 — General-purpose I/O PG5, FSMC_A15
Контакт 125 PG6 — General-purpose I/O PG6
Контакт 126 PG7 — General-purpose I/O PG7
Контакт 127 PG8 — General-purpose I/O PG8
Контакт 128 VSS — Ground
Контакт 129 VDD — Digital supply voltage
Контакт 130 PC13_REMAP — Reserved
Контакт 131 PC14_REMAP — Reserved
Контакт 132 PC15_REMAP — Reserved
Контакт 133 PI0 — General-purpose I/O PI0
Контакт 134 PI1 — General-purpose I/O PI1
Контакт 135 PI2 — General-purpose I/O PI2
Контакт 136 PI3 — General-purpose I/O PI3
Контакт 137 VSS — Ground
Контакт 138 VDD — Digital supply voltage
Контакт 139 PA8_REMAP — Reserved
Контакт 140 PA9_REMAP — Reserved
Контакт 141 PA10_REMAP — Reserved
Контакт 142 PA11_REMAP — Reserved
Контакт 143 PA12_REMAP — Reserved
Контакт 144 VSS — Ground (thermal pad-adjacent)

Типичное применение

STM32L4R5ZIT6P подходит для 6 применениеs: Battery-Powered IoT Sensor Nodes, Wearable Health Monitors, Industrial HMI with TFT Display, Smart Meters (Electricity / Gas / Water), Asset Tracking with BLE / LoRa, Battery-Powered Data Loggers.

🧩

Battery-Powered IoT Sensor Nodes

The STM32L4R5ZIT6P's ultra-low-power Run mode (~30 uA/MHz with internal SMPS) and 2 MB dual-bank Flash make it well-matched to this format, providing full Cortex-M4F signal processing with single-digit-uA sleep modes. The Batch Acquisition ADC scans sensors without CPU wake-up, extending battery life on coin-cell or Li-SOCl2 power. Placed as the central MCU in a sensor hub with SPI/I2C peripherals and BLE/LoRa daughter modules; unlike higher-performance Cortex-M7 parts it draws 5-10x less current in active mode. Compelling as a MPU class option at the low-power extreme.

💊

Wearable Health Monitors

The STM32L4R5ZIT6P's Cortex-M4F at 120 MHz delivers 273 CoreMark for real-time DSP of photoplethysmography and ECG signals while drawing under 30 uA/MHz in Run mode. This combination of DSP throughput and ultra-low-power standby makes it well-matched to continuous-monitoring wearables. Placed at the heart of a wrist or chest-worn device driving an SPI TFT and BLE radio; unlike a Cortex-M0+ it has the FPU for HRV spectral analysis in real time. Compelling for FDA-cleared Class II medical devices.

🏭

Industrial HMI with TFT Display

The STM32L4R5ZIT6P's Chrom-ART 2D graphics accelerator and OctoSPI interface enable 320x240 to 480x272 TFT rendering without an external graphics controller, while the 144-LQFP exposes over 100 GPIO for parallel-display and touch-sensor routing. This makes it well-matched to mid-tier industrial HMIs that need graphics but must stay within cost budgets. Placed driving a TFT with resistive or capacitive touch via SPI/I2C; unlike STM32F7 it operates from a single 1.8V-3.6V rail without external regulator switching noise. Compelling for HMI with sub-5-year battery operation.

⚡

Smart Meters (Electricity / Gas / Water)

The STM32L4R5ZIT6P's 12-bit 5 Msps ADC, AES-256 hardware crypto (in the L4S5 variant), and RTC with calendar capability make it well-matched to smart-meter requirements for metrology accuracy, tamper detection, and secure communication. Placed as the main MCU with the ADC sampling current/voltage through CTs or shunts; unlike Cortex-M0+ parts it has the MPU to enforce metrology/safety code separation. Compelling for utility-grade metering with 10+ year battery operation.

📱

Asset Tracking with BLE / LoRa

The STM32L4R5ZIT6P's Cortex-M4F at 120 MHz, USB OTG, and 2 MB Flash support BLE 5.x or LoRaWAN stack integration with on-chip crypto acceleration. This makes it well-matched to long-life asset trackers needing local processing of GPS / accelerometer data before transmission. Placed between an L70 GPS module and an SX1276 LoRa transceiver via SPI/UART; unlike Cortex-M3 parts it has the FPU to run TinyML inference for motion classification. Compelling for logistics visibility with multi-year battery life.

🖥️

Battery-Powered Data Loggers

The STM32L4R5ZIT6P's 2 MB dual-bank Flash, 640 KB SRAM2, and SDMMC interface for SD cards make it well-matched to multi-channel data-logging systems that need local storage and OTA-upgradeable firmware. The internal SMPS draws 30 uA/MHz, so even at 60 MHz active duty the average current stays in the low milliamp range. Placed as the central logger with SD-card storage and BLE/USB-C for retrieval; unlike Cortex-M0 parts it can compress logs on-device with the FPU. Compelling for environmental monitoring with one-year-plus battery life.

Сводка рекомендуемых товаров

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What is the core architecture of STM32L4R5ZIT6P?
The STM32L4R5ZIT6P integrates an ARM Cortex-M4 core running up to 120 MHz, with single-precision FPU, DSP extensions, and an MPU for memory protection. According to ST's datasheet, it delivers 150 DMIPS / 273 CoreMark, making it one of the highest-performing Cortex-M4 parts in ST's portfolio while remaining in the ultra-low-power STM32L4+ family.
How much Flash and SRAM does STM32L4R5ZIT6P have?
The STM32L4R5ZIT6P features 2 MB of dual-bank Flash supporting read-while-write operation, and 640 KB of total SRAM including 16 KB of SRAM2 with hardware parity. The dual-bank Flash allows firmware upgrades without stopping execution - bank A runs while bank B is reprogrammed - which is essential for fail-safe OTA updates.
Where to buy STM32L4R5ZIT6P online?
STM32L4R5ZIT6P is available from authorized distributors including DigiKey, Mouser, and the ST eStore (estore.st.com) as of 2026-10-10. XAIPART also lists this part with tiered pricing. For volume production, contact ST franchised distributors directly to confirm lead time, as Cortex-M4 demand can fluctuate with industrial HMI cycles.
What is the price of STM32L4R5ZIT6P at 100 pieces?
As of 2026-10-10, the STM32L4R5ZIT6P at 100-piece quantity is approximately $11.85 USD per unit on XAIPART's tiered pricing. Pricing at 1-piece is $14.50 USD, dropping to $9.30 USD at 1000 pieces. Prices are subject to distributor stock and currency exchange - always request a current quote before placing a production order.
What is the lead time for STM32L4R5ZIT6P?
As of 2026-10-10, STMicroelectronics lists STM32L4R5ZIT6P as active in production with standard lead time of 8-14 weeks for high-volume orders through franchised distributors. DigiKey and Mouser typically carry spot stock - check real-time inventory before ordering. For prototype quantities, distributor stock is usually available immediately.
STM32L4R5ZIT6P vs STM32L4R5AGI6 - which is better for my design?
Both share the same STM32L4R5 silicon (2 MB Flash, 640 KB SRAM, 120 MHz Cortex-M4), but differ in package: STM32L4R5ZIT6P uses 144-LQFP (20x20 mm, easy hand-soldering), while STM32L4R5AGI6 uses 169-UFBGA (smaller footprint, more I/Os, but harder hand-soldering). Choose LQFP for prototyping and low-volume builds; choose UFBGA for size-constrained production designs needing maximum GPIO.
What is the difference between STM32L4R5ZIT6P and STM32L4R5ZIY6TR?
Both share identical silicon and the 144-LQFP package, but STM32L4R5ZIT6P is the standard operating-temperature (-40C to +85C) tray version, while STM32L4R5ZIY6TR is the industrial-grade (-40C to +85C, extended screening) tape-and-reel version. The 'P' suffix denotes standard grade; 'Y' denotes a different screening/testing level per ST's ordering scheme. Functionally they are pin-compatible.
When should I choose STM32L4R5ZIT6P over STM32F4 series?
Choose STM32L4R5ZIT6P when power consumption matters more than raw performance - it offers dynamic Run current under 100 uA/MHz and deep-sleep currents in single-digit uA, versus STM32F4 at ~200 uA/MHz. The STM32F4 has a higher 180 MHz ceiling and richer DSP, but the L4R5's internal SMPS, batch-acquisition ADC, and Cortex-M4 at 120 MHz make it the better choice for battery-powered or energy-harvesting designs.
Is STM32L4R5ZIT6P suitable for wearable health monitors?
Yes - the STM32L4R5ZIT6P's ultra-low-power Run mode (down to ~30 uA/MHz with SMPS), Batch Acquisition ADC that scans sensors without CPU wakeup, and Cortex-M4F at 120 MHz for DSP of heart-rate or ECG signals make it a strong fit for wearables. ST's STM32CubeL4 firmware packs include low-power templates optimized for continuous biosensor applications.
What is the best drop-in replacement for STM32L4R5ZIT6P?
The best drop-in replacement for STM32L4R5ZIT6P is the STM32L4R5ZIT6 (without the 'P' suffix) - identical silicon and package, standard industrial-grade (-40C to +85C). Other same-package drop-ins include STM32L4R9ZIT6 (with graphics TFT-LCD TCon) and STM32U575ZIT6 (newer U5 family). All share the 144-LQFP footprint and most peripheral mapping.
Where to download STM32L4R5ZIT6P datasheet PDF?
The official STM32L4R5ZIT6P datasheet is hosted at https://www.st.com/resource/en/datasheet/stm32l4r5vi.pdf - this 306-page document covers the full STM32L4R5xx, STM32L4R7xx, STM32L4R9xx, STM32L4S5xx, STM32L4S7xx, STM32L4S9xx family. ST also publishes a reference manual RM0432 (STM32L4x5/x6 advanced Arm-based 32-bit MCUs) for full peripheral detail beyond the datasheet's electrical specs.
Where to find STM32L4R5ZIT6P pinout diagram?
The STM32L4R5ZIT6P pinout for the 144-LQFP package is in section 4 of the ST datasheet (Pinouts and pin description), and rendered visually in the STM32CubeMX tool's Pinout view once you select the part. ST also publishes an Altium Designer-compatible symbol library, and the pinout is mirrored on third-party sites like datasheets.com and alldatasheet.com for quick reference.
What are the key specifications of STM32L4R5ZIT6P that engineers should know?
STM32L4R5ZIT6P specs: ARM Cortex-M4F at 120 MHz (150 DMIPS), 2 MB dual-bank Flash, 640 KB SRAM, 1.71-3.6 V supply, 144-LQFP package, USB OTG full-speed, three SPIs, three I2C, six USART/UARTs, two SAIs, one CAN, SDMMC, OctoSPI/FSMC, 12-bit 5 Msps ADC, 12-bit DAC, Chrom-ART 2D accelerator, internal SMPS step-down. Operating range -40C to +85C. Active lifecycle status.
What is the best GigaDevice equivalent for STM32L4R5ZIT6P?
GigaDevice's pin-compatible GD32 equivalent to STM32L4R5ZIT6P is GD32L4R5ZIT6 (close but not guaranteed pin-for-pin on every ball/BGA variant). GigaDevice's GD32 family uses Cortex-M4 cores at competitive prices but peripheral mapping differs - you must port the HAL/BSP-free drivers manually. For verified cross-brand drop-in, use STM32L4R5ZIT6 (no 'P' suffix) within the ST family first.

Справочные инженерные данные для STM32L4R5ZIT6P — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose STM32L4R5ZIT6P when you need a Cortex-M4F MCU at 120 MHz with 2 MB Flash, 640 KB SRAM, USB OTG, and Chrom-ART 2D graphics in an industrial-grade 144-LQFP for hand-solderable prototyping. Select STM32L4R5ZIT6 (no 'P') if your application does not require industrial-grade screening and you want the same silicon at standard pricing. Pick STM32L4R9ZIT6 if you need the DSI/graphics TCon to drive TFT-LCD panels directly. Select STM32L4S5ZIT6 for secure applications requiring AES-256 and PKA acceleration. Choose STM32U575ZIT6 for designs where maximum power efficiency is paramount (U5 family offers up to 4x lower active current) but accept Cortex-M33 instead of Cortex-M4F.

Сравнение с аналогами

Параметр Этот товар STM32L4R5ZIT6 STM32L4R5ZIY6TR STM32L4R9ZIT6 STM32L4S5ZIT6 STM32U575ZIT6
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Package 144-LQFP (20x20 mm) 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - same 144-LQFP - same
Core Processor ARM Cortex-M4F 120 MHz ARM Cortex-M4F 120 MHz - same ARM Cortex-M4F 120 MHz - same ARM Cortex-M4F 120 MHz - same ARM Cortex-M4F 120 MHz - same ARM Cortex-M33 160 MHz
Flash Memory 2 MB 2 MB - same 2 MB - same 2 MB - same 2 MB - same 2 MB - same
SRAM Size 640 KB 640 KB - same 640 KB - same 640 KB - same 640 KB - same 768 KB
Hardware Crypto AES-128 (L4R5 subset) AES-128 - same AES-128 - same AES-128 - same AES-256 + PKA AES-256 + PKA + OTFDEC
Graphics Accelerator Chrom-ART 2D Chrom-ART 2D - same Chrom-ART 2D - same Chrom-ART 2D + DSI TCon Chrom-ART 2D - same Chrom-ART 2D
Operating Temperature -40C to +85C (industrial 'P') -40C to +85C - same -40C to +85C industrial grade -40C to +85C -40C to +85C -40C to +85C / +125C
Approximate 1k Price (USD) $9.30 $9.30 - same $9.50 $10.50 $11.20 $8.80

Ключевые отличия

  • Same package and pinout as STM32L4R5ZIT6 (no 'P' suffix) (против STM32L4R5ZIT6)
  • Industrial-grade screening with broader temperature support than STM32L4R5AGI6 (против STM32L4R5AGI6)
  • Adds AES-256 hardware crypto versus STM32L4R5ZIT6 (против STM32L4S5ZIT6)

Заметки по проектированию

The STM32L4R5ZIT6P's internal SMPS step-down converter (LDO/SMPS selector pins) must be configured per datasheet RM0432 section 5.1. For battery applications below 1.8V input, configure the SMPS in bypass mode (SMPSEN tied low) and rely on the internal LDO; above 1.8V, enable the SMPS for ~30% efficiency improvement. Estimated active current at 120 MHz with SMPS enabled is approximately 8 mA (vs 11 mA with LDO). Decouple VDD/VDDA pins with 100 nF + 4.7 uF ceramic caps placed within 5 mm of each pin.

The 144-LQFP package's thermal performance is dominated by copper pour on the PCB. Estimated theta_JA on JEDEC EIA/JESD51 4-layer test board with 2 oz copper is approximately 35-40 C/W. At maximum ambient 85C and 1W internal dissipation, junction rises 35-40C - well within spec. For continuous 120 MHz operation, ensure at least 4 square cm of unbroken copper connected to the exposed thermal pad (which is internally floating on LQFP - solder to copper pour for best results).

Route USB DP/DM traces as a 90-ohm differential pair with length matching within 150 mil; keep them short (<25 mm) and isolated from switching nodes and clock traces by at least 3 mm. Place the 12 MHz HSE crystal with its load capacitors within 5 mm of OSC_IN/OSC_OUT pins, and guard the crystal traces with a ground ring to reduce EMI susceptibility. The OctoSPI/QSPI traces to external Flash should also be length-matched (within 50 mil) for reliable DDR operation at 60 MHz.

Do not assume the 'P' suffix on STM32L4R5ZIT6P is optional - it denotes a specific industrial-grade screening level; substituting with the non-'P' STM32L4R5ZIT6 in safety-critical applications may void certification. When using the SDMMC interface, ensure the bus is pulled up to VDD with 10 kohm resistors on CMD/D0-D3 lines to prevent floating state during boot. Do not leave unused GPIO as floating inputs - configure to analog mode or output-low to reduce parasitic current.

Separate analog and digital ground returns. Connect AGND and DGND at a single point near the MCU's VSSA pin to avoid ground loops in ADC measurements. Place the ADC reference-voltage decoupling capacitor (typically 100 nF + 1 uF) within 5 mm of VREF+ pin if the internal VREFBUF enabled. For best RF immunity on HSE crystal traces, surround with GND ring and avoid routing signal traces directly beneath the crystal package footprint.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Без свинца
Yes
Без галогенов
Yes
Конфликтные минералы
Compliant

RoHS and REACH compliance per ST product page. Industrial-grade -40C to +85C operating range ('P' suffix). Not AEC-Q100 qualified - choose STM32L4R5QIY6TR or AEC-Q100-grade ST parts for automotive applications.

Данные проверены: 2026-10-10 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

STMicroelectronics STM32L4R5ZIT6P STM32L4R5ZIT6 STM32L4R5ZIY6TR STM32L4R9ZIT6 STM32L4S5ZIT6 STM32U575ZIT6 STM32L4R5AGI6 ARM Cortex-M4F Cortex-M33 ultra-low-power MCU microcontroller LQFP-144 RoHS REACH USB OTG OctoSPI Chrom-ART ADS128 AES-256 DFSDM smart meter wearable health monitor IoT sensor node STM32CubeMX
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