Renesas HD64413ASFV

Overview

HD64413ASFV from Renesas Technology Corp. is a SuperH RISC-based peripheral LSI functioning as a dedicated 2D graphics renderer with integrated synchronous DRAM interface, supporting real-time polygon rendering, video capture (YCbCr/RGB), display composition, and CRT/video encoder output. It operates at 50 MHz system clock, supports 16-bit CPU bus interface, and integrates Unified Graphics Memory (UGM) architecture for double-buffered screen updates in multimedia terminals.

For engineers reviewing the HD64413ASFV datasheet, HD64413ASFV pinout, HD64413ASFV application, or HD64413ASFV equivalent, key selection criteria include its Q2SD-series UGM memory mapping, SDRAM timing compatibility (CAS latency 2–3), video input interface support (ITU-R BT.656 compliant), and register-level command execution model for display list processing.

Technical Context

The HD64413ASFV implements a hardware-accelerated Unified Graphics Memory (UGM) architecture that decouples rendering commands from display refresh via dual-port memory access arbitration between CPU, DMAC, and internal Q2SD engine. It supports three concurrent memory domains: display buffer, work buffer, and video capture buffer - each independently addressable within a 32-bit UGM space.

Its rendering pipeline executes fixed-function 2D primitives (POLYGON4A/B/C, LINE, FTRAP) fetched from display lists stored in SDRAM, with real-time clipping, color expansion (256-color palette), and coordinate transformation. Video capture operates in parallel with rendering, supporting programmable window size (up to 720×480), YCbCr-to-RGB conversion, and subsampling control.

Key Specifications

Pinout & Package

HD64413ASFV is housed in a 208-pin PQFP (Plastic Quad Flat Package) with 0.5 mm pitch, thermally enhanced for graphics-intensive operation. Pin functions are grouped into system control, CPU interface (16-bit data, 24-bit address), UGM/SDRAM interface, display output (RGB, sync), video input (Y/Cb/Cr, CLK, VLD), and power/ground domains.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2D graphics acceleration applications.

Compared with HD64414ASFV and SH7720, the HD64413ASFV offers the most direct balance of dedicated graphics throughput, SDRAM interface configurability, and proven integration path with discrete SH microcontrollers - making it ideal for cost-sensitive, high-volume multimedia terminals where video input is single-source and resolution capped at D1.

Availability

HD64413ASFV is available at Aetrix Electronics and suitable for set-top box GUI rendering, industrial HMI display control, and medical imaging preview terminals requiring stable component supply and long-term lifecycle support.

Supply support for HD64413ASFV 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

Renesas Technology Corp. is a Japanese semiconductor manufacturer formed in 2003 through the merger of Hitachi and Mitsubishi Electric's semiconductor operations, specializing in microcontrollers, analog, and application-specific LSIs.

The HD64413ASFV belongs to the Q2SD (Quick 2D Graphics Renderer) product line, designed specifically for real-time, low-CPU-overhead 2D graphics acceleration in consumer and industrial multimedia terminals with integrated video capture and display output.

FAQ

What is the primary function of the HD64413ASFV in a system architecture?

The HD64413ASFV serves as a dedicated 2D graphics accelerator with integrated video capture and display output capabilities. It offloads rendering tasks - including polygon drawing, line generation, and display list execution - from the host CPU. The HD64413ASFV does not contain an embedded processor core and relies on an external SuperH microcontroller to configure registers and issue commands, making it a peripheral LSI optimized for deterministic multimedia display subsystems.

Does the HD64413ASFV include an on-chip CPU or microcontroller?

No, the HD64413ASFV is a peripheral LSI without an integrated CPU core. It implements the Q2SD graphics engine and associated interfaces (SDRAM, video input, display output) but requires an external SuperH-based microcontroller - such as SH7709A or SH7727 - to manage register configuration, display list loading, and interrupt handling. The HD64413ASFV executes rendering commands autonomously once initiated, but all system-level control resides externally.

What types of video input does the HD64413ASFV support?

The HD64413ASFV supports parallel ITU-R BT.656-compliant video input with separate Y, Cb, and Cr data buses (8-bit each), a 27 MHz pixel clock (CLK27), and a vertical line valid signal (VLD). It handles both NTSC and PAL standards, allows programmable capture window positioning and size (down to 16×16 pixels), and provides hardware subsampling (½× or ¼×) for preview scaling. The HD64413ASFV does not support HDMI, MIPI, or digital video interfaces.

Can the HD64413ASFV drive a display directly without external components?

No, the HD64413ASFV cannot drive a display directly. Its RGB[7:0] outputs are digital signals intended for connection to external RGB DACs or video encoders (e.g., for composite or S-video output). Similarly, its video input interface requires external analog front-end circuitry to condition BT.656 signals. The HD64413ASFV provides timing and data paths but relies on companion analog components for final display signal generation and video acquisition conditioning.

What is the role of the Unified Graphics Memory (UGM) architecture in the HD64413ASFV?

The Unified Graphics Memory (UGM) architecture in the HD64413ASFV defines a single, coherent SDRAM address space partitioned into display buffer, work buffer, and video capture buffer regions - all accessible by CPU, DMAC, and the internal Q2SD engine under hardware arbitration. This eliminates memory copying overhead and enables true double-buffered screen updates, synchronized video capture, and real-time overlay composition. The HD64413ASFV's UGM is managed entirely in hardware via dedicated registers (e.g., DSR, DSAR, VSAR), with no software-managed memory mapping required.