STMicroelectronics STEVAL-CBP005V1

Overview

STEVAL-CBP005V1 from STMicroelectronics is a front-panel demonstration board designed for the HR21 set-top box, implementing the STLED316S LED controller/driver IC to drive 16 × 3 mm blue LEDs, 2 × 5 mm BiColor LEDs, and 12 function keys via an 11-pin host interface connector.

For engineers reviewing the STEVAL-CBP005V1 datasheet, STEVAL-CBP005V1 pinout, STEVAL-CBP005V1 application, or STEVAL-CBP005V1 equivalent, this board supports rapid validation of LED-driven front-panel UIs in STB systems with integrated IR sensor biasing, reset signaling, and dual-voltage (3.3 V / 5 V) power routing.

Technical Context

The board operates as a slave device to the HR21 main board (host), communicating via a synchronous serial interface using CLK, STB, DIN/DOUT, and IRQ_N signals. All control, power, and status lines-including SEG/KS outputs, DIG drivers, KEY matrix scan lines, and IR_OUT-are routed through the 11-pin connector.

It integrates discrete LED driver section (U1: STLED316S in SO-24 package), key matrix scanning circuitry, IR sensor bias network, and dedicated reset conditioning. The board requires external host connection and does not operate autonomously.

Key Specifications

Availability

STEVAL-CBP005V1 is available at Aetrix Electronics and suitable for set-top box front-panel development, LED-driven UI prototyping, and STLED316S driver evaluation requiring stable component supply and traceable reference hardware.

Supply support for STEVAL-CBP005V1 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, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog/mixed-signal products for industrial, automotive, and consumer markets.

The STEVAL-CBP005V1 belongs to ST's STEVAL evaluation board family, developed specifically to accelerate front-panel interface design for digital TV and set-top box platforms using ST's LED driver and key-scan ICs.

FAQ

Does STEVAL-CBP005V1 operate independently without a host board?

No. The board functions exclusively as a slave device and requires connection to the HR21 main board (or compatible host emulating its timing and protocol) to receive clock, strobe, data, and reset signals. It lacks onboard MCU or autonomous control logic.

What is the role of the 11-pin connector on STEVAL-CBP005V1?

The 11-pin connector provides full electrical interface to the host: CLK, STB, DIN/DOUT, IRQ_N, 3.3 V, 5 V, GND, RESET, and IR_OUT. It carries all control, power, and bidirectional data necessary for STLED316S operation and key/LED synchronization.

Can the IR sensor be installed directly on this board?

Yes - the board includes footprint and biasing components (R3, R7, C1, D5) for mounting a standard IR receiver diode. The IR_OUT signal is routed to the 11-pin connector, enabling host-side demodulation and protocol decoding.

Is the STLED316S IC socketed or soldered on STEVAL-CBP005V1?

The STLED316S (U1) is permanently soldered in SO-24 package on the board. It is not socketed; replacement requires rework. The schematic and layout match ST's recommended design for this driver, including decoupling (C1, C2, C3) and current-setting resistors.