NXP Semiconductors RK043FN02H-CT

Overview

RK043FN02H-CT from Rocktech Displays Limited is a 4.3-inch capacitive touch TFT LCD module with 480×272 RGB resolution, integrated OTA5180A display controller and FT5336GQQ touch IC, 350 cd/m² luminance, and 400:1 contrast ratio - deployed in industrial HMIs, medical handheld displays, and embedded control panels requiring compact, ready-to-integrate visual interfaces.

For engineers reviewing the RK043FN02H-CT datasheet, RK043FN02H-CT pinout, RK043FN02H-CT application, or RK043FN02H-CT equivalent, this page delivers verified interface timing, RGB parallel signal mapping, CTP I²C pin assignment, backlight voltage/current specs, and real-world optical performance under defined ambient conditions.

Technical Context

The RK043FN02H-CT integrates a transmissive TFT LCD panel driven via 24-bit parallel RGB interface (R0–R7, G0–G7, B0–B7) synchronized by DCLK, HSYNC, VSYNC, and DE signals, with logic powered at 3.3 V (±0.3 V) and backlight supplied at 16 V (15–17 V) @ 40 mA. The OTA5180A controller handles pixel addressing and timing generation.

Capacitive touch functionality is implemented independently via the FT5336GQQ IC operating on 2.8–3.3 V DC, communicating over I²C (SCL/SDA), with 12.5 mA typical operating current, <16 ms response time, and interrupt-driven event reporting through the INT pin.

Key Specifications

Availability

RK043FN02H-CT is available at Aetrix Electronics and suitable for industrial HMIs, medical diagnostic devices, and automotive infotainment test fixtures requiring stable component supply, long-term production continuity, and pre-validated mechanical/optical integration.

Supply support for RK043FN02H-CT 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

Rocktech Displays Limited is a Hong Kong-based manufacturer specializing in custom and standard TFT LCD modules with integrated touch, backlight, and driver solutions for industrial and embedded markets.

The RK043FN02H-CT belongs to Rocktech's RK043FN series of compact, all-in-one display modules designed for rapid integration into space-constrained, cost-sensitive embedded systems where reliability and out-of-box functionality are critical.

FAQ

What interface does the RK043FN02H-CT use for display data transmission?

The RK043FN02H-CT uses a 24-bit parallel RGB interface with discrete control signals: DCLK, HSYNC, VSYNC, DE, and DISP. Data is latched on the rising edge of DCLK. This interface requires direct connection to an MCU or FPGA GPIO bank capable of driving 40 pins at TTL logic levels and meeting setup/hold timing per the OTA5180A specification referenced in the RK043FN02H-CT datasheet.

Does the RK043FN02H-CT include both display and touch functionality?

Yes, the RK043FN02H-CT integrates a 4.3-inch TFT LCD panel with LED backlight and a separate capacitive touch panel (CTP) controlled by the FT5336GQQ IC. The display and touch subsystems operate on independent power domains (3.3 V logic / 16 V backlight / 2.8–3.3 V CTP) and use distinct physical interfaces - parallel RGB for display and I²C for touch - enabling simultaneous, decoupled operation in the RK043FN02H-CT.

What are the absolute maximum ratings for the RK043FN02H-CT's operating temperature?

The RK043FN02H-CT has an operating ambient temperature range of −20 °C to +70 °C and a storage temperature range of −30 °C to +80 °C. Exceeding these limits may cause irreversible damage or temporary malfunction, including liquid crystal phase shift, polarizer delamination, or CTP sensitivity drift. Operation at extremes requires validation per Rocktech's reliability test report (Section 9 of RK043FN02H-CT spec).

Is the RK043FN02H-CT compatible with common microcontrollers like STM32 or NXP i.MX RT?

Yes, the RK043FN02H-CT is compatible with MCUs featuring parallel RGB video output peripherals, such as STM32F7/F469 or NXP i.MX RT1050/RT1170. These platforms provide dedicated LTDC or LCDIF controllers that match the RK043FN02H-CT's timing requirements (DCLK up to ~9 MHz, DE/HSYNC/VSYNC polarity and pulse width per Section 7.3.2). Driver adaptation is required but no hardware modification to the RK043FN02H-CT itself.

What is the backlight lifetime specification for the RK043FN02H-CT?

The RK043FN02H-CT backlight has a rated lifetime of 20,000 hours to 50% initial luminance under nominal conditions (IF = 40 mA, Ta = 25 °C, RH < 60%). Lifetime decreases under elevated temperature/humidity or overcurrent operation. This value is measured per Rocktech's internal aging test (Note 3, Section 3.2) and applies only to the LED backlight subsystem - not the LCD panel or CTP.