STM32L072CBT6TR is an STMicroelectronics Arm Cortex-M0+ microcontroller with 128 KB Flash, 32 MHz, in LQFP-48 tape and reel — for ultra-low-power sensing: battery-powered meters, LoRa nodes and environmental monitors. The sub-microamp sleep modes are the selection point: multi-year battery life that standard MCUs cannot touch. Selection advice: the L072 pairs the Cortex-M0+ with an integrated sub-GHz radio interface heritage (Murata CMWX1ZZABZ modules use this family) — for a discrete LoRa radio, pair with Semtech SX1262. The T6TR denotes LQFP-48 in tape and reel for production. ST lists this order code as active; we verify availability per lot. Parameters verified against the ST official product page.
Ordering-code highlights reviewed against official manufacturer documentation.
STM32L072CB is available in the following manufacturer order codes. They share the same STM32L072CB design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.
| Order code | Package | Packing | Key difference |
|---|---|---|---|
| STM32L072CBT6 | LQFP-48 | — | — |
| STM32L072CBT6TR | LQFP 48 7x7x1.4 mm | — | Compared with STM32L072CBT6, 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. |
| STM32L072CBU6 | UFQFPN 48 7x7x0.55 mm | — | Compared with STM32L072CBT6, package changes from LQFP 48 7x7x1.4 mm to UFQFPN 48 7x7x0.55 mm. Verify the factory packing and PCB footprint before treating order codes as interchangeable. |
| STM32L072CBY6TR | WLCSP 49 3.3x3.3x0.6 P 0.4 mm | — | Compared with STM32L072CBT6, package changes from LQFP 48 7x7x1.4 mm to WLCSP 49 3.3x3.3x0.6 P 0.4 mm. Verify the factory packing and PCB footprint before treating order codes as interchangeable. |
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Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
These are order-code variants of the same STMicroelectronics series. They share the core design; the ordering code selects the exact configuration — STM32L072CBT6 (LQFP-48); STM32L072CBU6: Compared with STM32L072CBT6, package changes from LQFP 48 7x7x1.4 mm to UFQFPN 48 7x7x0.55 mm. Verify the factory packing and PCB footprint before treating order codes as interchangeable.; STM32L072CBY6TR: Compared with STM32L072CBT6, package changes from LQFP 48 7x7x1.4 mm to WLCSP 49 3.3x3.3x0.6 P 0.4 mm. Verify the factory packing and PCB footprint before treating order codes as interchangeable.. STM32L072CBT6TR itself is the LQFP 48 7x7x1.4 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.
From the verified technical profile: Core: Arm Cortex-M0+; Flash memory: 128 KB; CPU frequency: 32 MHz. These are the catalog-recorded values for STM32L072CBT6TR — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.