ECV3-10-IDC-STDC14 · 10-pin Edge-Connect to STDC14

Short description

Edge-Connect™ cable with ten 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. Carries JTAG and SWD.

Connections

Pin assignment: TC2050 1–10 to STDC14 3–12; pins 1, 2, 13 and 14 not connected — 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: ECV3-10-IDC-050
• 10-pin, 2 × 5, 2.54 mm (0.1″) — e.g. PEmicro Multilink, USB-Blaster: ECV3-10-IDC
• 20-pin, 2 × 10, 1.27 mm (0.05″) — e.g. Keil ULINK2: ECV3-10-IDC-050-20

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

Technical data

• Protocols: JTAG and 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.

Ten contacts instead of six mean JTAG is available, not only SWD. If you drive a chain of several devices, or depend on trace signals, this is the version you need.

How the pins map

The STDC14 has fourteen pins, the board side ten contacts. The mapping is straightforward but offset:

• STDC14 pins 3 to 12 map to ECV3-10 pins 1 to 10
• STDC14 pins 1, 2, 13 and 14 are not connected
• As a formula: ECV3-10 pin n sits on STDC14 pin n + 2

Worth knowing before you put a scope on it or trace a signal by hand — otherwise you count from the wrong end.

In use with these devices

STLINK-V3SET · STLINK-V3 · STLINK-V3MINI — each for ST STM32 via JTAG and 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-STDC14 — six contacts at the board edge, also on STDC14, SWD only. ECV3-10-IDC — 10-pin 2.54 mm (0.1″) header. ECV3-10-IDC-050 — ten pins on a 1.27 mm (0.05″) pitch.

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