ECV3-06-CTX-STDC14 · 6-pin Edge-Connect to STDC14

Short description

Edge-Connect™ cable with six contacts at the board edge, terminating in the STDC14 header — the 14-pin 1.27 mm (0.05″) connector on ST's STLINK-V3 and STLINK-V3MINI debuggers.

Connections

Pin assignment: TC2030 1–6 to STDC14 3, 4, 6, 8, 12, with GND on 5 and 7 — the full table is in the "Technical data" tab.

Compatible: ST-LINK V3, V3MINI and V3SET, and other debuggers with a 14-pin 1.27 mm connector (STDC14, FTSH-107 style).

Not, or not directly, compatible

• 20-pin, 2 × 10, 2.54 mm (0.1″) — ARM connector, e.g. SEGGER J-Link, Keil ULINK, ST-LINK/V2: through the adapter board COLL-ARM20-14P-050
• 10-pin, 2 × 5, 1.27 mm (0.05″) — Cortex connector, e.g. Keil ULINK2: ECV3-06-CTX
• 6-pin, 2 × 3, 2.54 mm (0.1″): ECV3-06-IDC

Easily confused: The ST-LINK/V2 and the older ST-LINKs carry a 20-pin 2.54 mm connector, not this one.

Technical data

• Protocol: SWD
• Required on the target board: one non-plated locating hole

What you need it for

Edge-Connect places the contacts on the edge of the board rather than on its surface. The target board needs no mating connector at all — just the plated half-holes along the edge and one hole for location.

The fourteen pins on the STLINK-V3 carry more than SWD requires. This cable picks up the signals SWD needs and brings six of them to the edge of your board.

If you work with the STLINK-V3

With the STLINK-V3, ST moved to the STDC14 — a 14-pin header on a 1.27 mm (0.05″) pitch. The older ST-LINK/V2 carries the 20-pin 2.54 mm (0.1″) connector instead. Both attach to the same STM32, but they need different cables.

So check the debugger, not the processor: a narrow 14-pin header with 1.27 mm pin spacing means this cable.

In use with these devices

STLINK-V3SET · STLINK-V3 · STLINK-V3MINI — each for ST STM32 via SWD on the ST-14 connector

What counts is the connector, not the device name: compare the connector on your device with the table above. If it carries a different one, the route goes through an adapter board.

Included

Cable with Edge-Connect™ connector and IDC header. The demo PCB shown in the manufacturer's photos is not included and is ordered separately.

Variants

ECV3-06-CTX — same board side, but a 10-pin Cortex header. ECV3-10-IDC-STDC14 — ten contacts at the board edge, also on STDC14.

If all fourteen pins are needed on the target board, the ECV3-14-IDC is the cable for it. We do not hold it in stock — ask us and we will source it.

On connector numbering: Why the six-pin Tag-Connect counts differently