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STMicroelectronics STM32H7A3LIH6Q — Microcontrollers & Processors (MCU / MPU / DSP)

STM32H7A3LIH6Q STM32H7 MCU, 280MHz Cortex-M7, 2MB Flash

MPNSTM32H7A3LIH6Q
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STMicroelectronics STM32H7A3LIH6Q, STM32H7 series, 32-bit ARM Cortex-M7 MCU, 280MHz, 2MB Flash, 1.4MB RAM, 168 I/O, 225-TFBGA (13x13), -40 to 85°C, 1.62 to 3.6V.

$21.0700Ref. price · indicative, final on quote
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MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

STM32H7A3LIH6Q Technical Specifications
ParameterValue
SeriesSTM32H7
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.62V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed280MHz
PackageTray
RAM size1.4M x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, HDMI-CEC, I²C, IrDA, LINbus, MDIO, MMC/SD/SDIO, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG
Number of i (O)168
Core processorARM® Cortex®-M7
Case225-TFBGA
Data convertersA/D 24x16b; D/A 3x12b
Program memory size2MB (2M x 8)

Product details

The 280 MHz core speed, combined with the Cortex-M7's single-cycle multiply-accumulate and double-precision FPU, makes this part a fit for real-time control loops in motor drives, audio processing pipelines, and graphical HMI systems that would otherwise need a separate DSP or FPGA. The 1.4 MB RAM is unusually large for a single-core MCU in this package class — enough to hold a full frame buffer for a 480x272 TFT display with a touch overlay, or to run a dual-bank OTA firmware update scheme without external SDRAM. The 168 general-purpose I/O lines, spread across a 225-ball TFBGA (13x13 mm), give enough pins to interface a parallel RGB LCD, a camera sensor, and multiple UART/SPI peripherals simultaneously. The supply range spans 1.62 V to 3.6 V, which lets the core run at 1.8 V for lower dynamic power while the I/O banks operate at 3.3 V to interface with legacy peripherals.

Connectivity and peripheral set — one chip for the fieldbus and HMI

This peripheral density lets a single MCU handle the fieldbus gateway, the local HMI display, and the sensor acquisition chain without external bridge chips. The EBI/EMI memory controller can map external SRAM, NOR Flash, or a parallel LCD controller directly into the 32-bit address space. Data converters include 24 analog inputs multiplexed into a 16-bit ADC and three 12-bit DAC outputs — enough for simultaneous current sensing on a three-phase motor drive plus a reference voltage output.

Package and assembly — 225-TFBGA (13x13)

The 225-ball TFBGA measures 13x13 mm with a 0.8 mm ball pitch. This is a four-layer-PCB-friendly pitch — escape routing on two signal layers is feasible without microvias. The 168 I/O lines are distributed across the ball grid, so the PCB layout needs careful fan-out planning if all peripherals are used simultaneously. MSL 3 out of the bag; bake before reflow if the moisture barrier bag has been open past the floor-life window. Surface-mount only. The thermal pad at the center of the BGA carries the bulk of the junction-to-board heat path; a via stitch under the pad is recommended for continuous operation above 400 mA core current.

Lifecycle and supply posture

There is no NRND notice or last-time-buy schedule attached to this base number.

Frequently asked questions

What is the closest pin-compatible alternative to STM32H7A3LIH6Q in the STM32H7 family?

Within the STM32H7A3 line, the density variants share the same 225-TFBGA footprint and peripheral map, differing only in Flash and RAM size. For a higher-performance sibling, the STM32H743 series offers a dual-core Cortex-M7 + M4 option but uses a different pinout in the same package. Verify compatibility against the STM32H7 reference manual before swapping.