STMicroelectronics STEVAL-IPT004V1

Overview

STEVAL-IPT004V1 from STMicroelectronics is a 24-pin smartcard interface demonstration board built around the ST8034HN smartcard interface IC, providing full supply, protection, detection, and clock control functions for ISO 7816-3 compliant cards. It supports standalone operation with on-board 10 MHz crystal oscillator, configurable card voltage (1.8 V / 3.0 V / 5.0 V), and dual clock source selection (on-board or MCU-provided).

For engineers reviewing the STEVAL-IPT004V1 datasheet, STEVAL-IPT004V1 pinout, STEVAL-IPT004V1 application, or STEVAL-IPT004V1 equivalent, this board enables rapid validation of smartcard power sequencing, clock generation, reset timing, and protocol-level signal integrity in set-top box, POS terminal, and banking terminal designs.

Technical Context

The board implements the complete ISO/IEC 7816-3 physical layer interface between microcontroller and contact smartcard, including VCC switching, clock generation (1–5 MHz programmable via MCU), reset pulse control (tRST ≥ 400 ns), and ESD protection up to ±8 kV HBM on all card-facing pins. It integrates the ST8034HN's internal charge pump, voltage regulator, and card-detection circuitry.

Signal routing follows strict ISO 7816-3 timing constraints: tRST-to-clock delay ≤ 200 µs, clock rise/fall time < 100 ns, and VCC ramp time 1–5 ms. The MCU interface uses standard 8-bit parallel bus (I/O, CLK, RST, VCC_SEL, CLK_SEL) with configurable pull-ups and test-point access to all critical nodes.

Key Specifications

Availability

STEVAL-IPT004V1 is available at Aetrix Electronics and suitable for point-of-sale terminals, pay-TV set-top boxes, and banking card readers requiring stable component supply, rapid prototyping support, and production-ready reference design validation.

Supply support for STEVAL-IPT004V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power management devices, and secure interface solutions for industrial, consumer, and automotive markets.

The STEVAL-IPT004V1 belongs to ST's Smartcard Interface Evaluation Platform product line, engineered specifically to accelerate development of ISO 7816-compliant card readers for financial transaction, identity verification, and conditional access systems.

FAQ

Does STEVAL-IPT004V1 support dual-voltage smartcards?

Yes. The board provides hardware-selectable VCC outputs of 1.8 V, 3.0 V, and 5.0 V via on-board DIP switches, and also supports remote voltage selection through MCU-controlled VCC_SEL signals per ISO 7816-3 Class A/B/C definitions.

Can the on-board crystal oscillator be bypassed for external clock injection?

Yes. The CLK_SEL jumper allows direct routing of an external clock signal from the MCU interface into the ST8034HN's CLK input, disabling the 10 MHz crystal oscillator path while maintaining full timing compliance for 1–5 MHz card clocks.

What is the maximum current capability of the card power supply?

The board delivers up to 100 mA at each supported voltage (1.8 V / 3.0 V / 5.0 V) with thermal foldback and short-circuit protection, sufficient for Class A, B, and C smartcards under worst-case load conditions defined in ISO/IEC 7816-3.

Are test points provided for all ISO 7816 signals?

Yes. Labeled test points are present for VCC, RST, CLK, I/O, GND, VPP (if used), and all MCU interface control lines (VCC_SEL, CLK_SEL, RESET_EN), enabling oscilloscope probing without soldering or wire attachment.