PACKAGE REFERENCELQFP 176 24x24x1.4 mmConfirm case, pinout and ordering suffix before purchase.

MANUFACTURER PART RECORD

STM32H573IIT3Q

STM32H573IIT3Q is an STMicroelectronics Arm Cortex-M33 microcontroller with 2 MB Flash, in LQFP-176 — for secure connected devices needing a hand-inspectable package: industrial gateways and access control. The TrustZone hardware isolation is the selection point: secure and non-secure code run in separated worlds. Selection advice: the T3Q denotes LQFP-176 — the largest, most rework-friendly package of the H573II line; pick it when BGA assembly is unavailable or field rework matters. For denser boards, the UFBGA K6/K3Q variants shrink the footprint. ST lists this order code as active; we verify availability per lot. Parameters verified against the ST official product page.

Integrated CircuitsSTM32H573IILQFP 176 24x24x1.4 mm

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MPN: STM32H573IIT3Q
Manufacturer: STMicroelectronics
Family: STM32H573II
Package: LQFP 176 24x24x1.4 mm
Manufacturer channel coverage: Checked by RFQ
Data last checked: Commercial check required
Required order checks: Suffix, package, date code, lot, source and traceability
Lifecycle: Active

PROCUREMENT DATA

Identity and sourcing requirements.

MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Core: Arm Cortex-M33
Flash memory: 2 MB
CPU frequency: 250 MHz maximum · at voltage scale VOS0 with junction temperature TJ up to 105°C; at VOS1 the maximum is 200 MHz with TJ up to 130°C (junction temperatures, not ambient)
Package: LQFP 176 24x24x1.4 mm
Order code: STM32H573IIT3Q
Operating temperature: -40.0 to 125.0 °C

Source: STMicroelectronics product data · Reviewed 2026-09-29

ORDER-CODE COMPARISON

Same series, different order codes.

STM32H573II is available in the following manufacturer order codes. They share the same STM32H573II design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.

Order code	Package	Packing	Key difference
STM32H573IIK3Q	UFBGA	—	—
STM32H573IIK3QTR	UFBGA 176+25 10x10x0.6 P 0.65 mm	—	Compared with STM32H573IIK3Q, package and listed temperature grade match, but the order-code suffix differs. Verify the factory packing and PCB footprint before treating order codes as interchangeable.
STM32H573IIK6	UFBGA 176+25 10x10x0.6 P 0.65 mm	—	Compared with STM32H573IIK3Q, temperature grade changes from -40.0 to 125.0 °C to -40.0 to 85.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.
STM32H573IIK6TR	UFBGA 176+25 10x10x0.6 P 0.65 mm	—	Compared with STM32H573IIK3Q, temperature grade changes from -40.0 to 125.0 °C to -40.0 to 85.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.
STM32H573IIT3Q	LQFP 176 24x24x1.4 mm	—	Compared with STM32H573IIK3Q, package changes from UFBGA 176+25 10x10x0.6 P 0.65 mm to LQFP 176 24x24x1.4 mm. Verify the factory packing and PCB footprint before treating order codes as interchangeable.
STM32H573IIT6	LQFP 176 24x24x1.4 mm	—	Compared with STM32H573IIK3Q, package changes from UFBGA 176+25 10x10x0.6 P 0.65 mm to LQFP 176 24x24x1.4 mm; temperature grade changes from -40.0 to 125.0 °C to -40.0 to 85.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.

QUOTE WORKFLOW

Four checks before a commercial offer.

Identity

Exact MPN, manufacturer and suffix

Supply

Supplier type, quantity and freshness

Evidence

Lot, labels, photos and documents

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Integrated Circuits records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

STM32H573IIT3Q FAQ

What is the difference between STM32H573IIT3Q and STM32H573IIK3Q, STM32H573IIK3QTR, STM32H573IIK6?

These are order-code variants of the same STMicroelectronics series. They share the core design; the ordering code selects the exact configuration — STM32H573IIK3Q (UFBGA); STM32H573IIK3QTR: Compared with STM32H573IIK3Q, package and listed temperature grade match, but the order-code suffix differs. Verify the factory packing and PCB footprint before treating order codes as interchangeable.; STM32H573IIK6: Compared with STM32H573IIK3Q, temperature grade changes from -40.0 to 125.0 °C to -40.0 to 85.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.. STM32H573IIT3Q itself is the LQFP 176 24x24x1.4 mm configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.

What are the key specifications of STM32H573IIT3Q?

From the verified technical profile: Core: Arm Cortex-M33; Flash memory: 2 MB; CPU frequency: 250 MHz maximum · at voltage scale VOS0 with junction temperature TJ up to 105°C; at VOS1 the maximum is 200 MHz with TJ up to 130°C (junction temperatures, not ambient). These are the catalog-recorded values for STM32H573IIT3Q — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.