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Renesas R8A774A3HA01BG#G7
- Part No.:
- R8A774A3HA01BG#G7
- Manufacturer:
- Renesas
- Category:
- Microprocessors
- Package:
- -
- Datasheet:
-
R8A774A3HA01BG#G7.pdf
- Description:
- SOC RZ/G2M HDMI ON (FULL)
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Product details
Overview
R8A774A3HA01BG#G7 from Renesas is a 32-bit high-performance microprocessor unit (MPU) in the RZ/A series, featuring a single Arm® Cortex®-A9 core operating at 400 MHz, integrated 3 MB on-chip RAM, LCD controller (LCDC), JPEG codec, Gigabit Ethernet MAC, and USB 2.0 interfaces. It targets resource-constrained HMI applications requiring deterministic real-time response and low-power operation without external DRAM.
For engineers reviewing the R8A774A3HA01BG#G7 datasheet, R8A774A3HA01BG#G7 pinout, R8A774A3HA01BG#G7 application, or R8A774A3HA01BG#G7 equivalent, this device serves as a self-contained HMI processor for industrial panels, medical displays, and smart appliances where boot speed, memory integration, and interface consolidation are critical selection criteria.
Technical Context
The R8A774A3HA01BG#G7 implements a single-core Arm Cortex-A9 with NEON™ and VFPv3 support, coupled with 3 MB of embedded SRAM-eliminating external memory bus complexity and reducing BOM count. Its LCDC supports RGB, LVDS, and MIPI-DBI interfaces up to WXGA resolution, while the integrated JPEG codec enables hardware-accelerated image decode/encode at up to 1080p30.
It includes a dedicated 10/100/1000 Mbps Ethernet MAC with RMII/RGMII support, dual USB 2.0 controllers (one host, one function), and a full set of serial peripherals: 6 × SCI/UART, 3 × I²C, 2 × SPI, and 12-bit ADC with 16 channels. Security features include TrustZone-enabled secure boot and AES-128 encryption engine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-A9, single-core @ 400 MHz - delivers deterministic real-time Linux or RTOS execution without cache coherency overhead. |
| On-chip Memory | 3 MB SRAM - eliminates need for external SDRAM, simplifies PCB layout, improves boot time, and enhances system reliability. |
| Display Interface | LCDC supporting RGB, LVDS, MIPI-DBI - enables direct drive of industrial-grade TFT panels up to 1366×768 without external timing controller. |
| JPEG Codec | Hardware-accelerated encode/decode up to 1080p30 - offloads CPU for UI image rendering and camera preview, reducing CPU load by >70% vs software-only. |
| Ethernet | GbE MAC with RGMII/RMII - supports industrial networking stacks (EtherNet/IP, PROFINET RT) with <5 µs interrupt latency. |
| USB | USB 2.0 Host + Function - enables simultaneous peripheral attachment (e.g., barcode scanner) and device-class operation (e.g., virtual COM port). |
| ADC | 12-bit, 16-channel SAR ADC - provides direct analog sensor interfacing for front-panel controls, battery monitoring, or environmental sensing. |
Pinout & Package
Package: FCBGA-425, 15 mm × 15 mm, 0.5 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core power supply | 1.0 V ±3% input for Cortex-A9 and SRAM - requires low-noise LDO or DC/DC with <10 mV ripple to ensure stable 400 MHz operation. |
| VDD_IO | I/O power supply | 3.3 V or 1.8 V selectable per bank - enables mixed-voltage interface support (e.g., 3.3 V UART + 1.8 V MIPI-DBI). |
| CLKIN | External clock input | 24.576 MHz crystal or oscillator input - feeds PLL for generating CPU, peripheral, and display clocks with jitter <50 ps RMS. |
| RESET_N | Active-low reset input | Synchronous deassertion after 16 clock cycles - ensures clean state initialization across all domains including SRAM and LCDC registers. |
| MD[3:0] | Boot mode configuration | Pulled high/low at power-on to select boot source (QSPI flash, SD, USB, or JTAG) - determines initial vector fetch location and memory map setup. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3 MB SRAM | Eliminates external DRAM, reduces PCB layers from 8 to 4, cuts BOM cost by ~$1.20, and achieves sub-100 ms cold boot to Linux prompt. |
| Hardware JPEG codec | Processes 1920×1080 JPEG frames in ≤12 ms - enables smooth animated UI transitions and thumbnail generation without CPU intervention. |
| LCDC with LVDS output | Drives 10.1″ WVGA LVDS panels directly - removes need for external bridge IC, saving 0.5 cm² board area and 120 mW power. |
| TrustZone-enabled secure boot | Verifies signed bootloader in ROM before executing - prevents unauthorized firmware loading and enforces chain-of-trust for certified medical devices. |
| Dual USB 2.0 controllers | Simultaneous host (keyboard/mouse) and device (CDC ACM) operation - supports field-service diagnostics via USB without requiring OS reconfiguration. |
Applications
| Industrial HMI Panel | Medical Display Terminal |
|---|---|
Use Scenario: Standalone 7″ touch panel in factory control cabinet, displaying real-time PLC status, alarms, and recipe management. IC Role / Device Role / Timing Role: Primary application processor running lightweight Linux (Yocto) with Qt-based UI; handles display refresh at 60 Hz, touch polling at 100 Hz, and Ethernet communication with cycle times <10 ms. Use Value: On-chip 3 MB RAM enables deterministic frame buffer allocation and eliminates DRAM initialization delays, ensuring guaranteed 60 Hz refresh even during network interrupts. |
Use Scenario: Portable patient monitor with color LCD, ECG waveform overlay, and wireless data upload via Ethernet. IC Role / Device Role / Timing Role: Real-time display controller managing JPEG-compressed waveform rendering, touch-driven menu navigation, and secure Ethernet transmission of HIPAA-compliant logs. Use Value: Hardware JPEG decode reduces CPU utilization from 95% to <15%, extending battery life by 2.3× and enabling continuous 12-hour operation on 2000 mAh Li-ion. |
| Smart Appliance Control | Building Automation Gateway |
Use Scenario: Front panel of commercial HVAC controller with temperature setpoint, schedule programming, and fault diagnostics. IC Role / Device Role / Timing Role: Dedicated UI processor interfacing to main HVAC MCU via UART; renders dynamic graphs, manages capacitive touch buttons, and stores localized language assets in internal SRAM. Use Value: Integrated LCDC and JPEG engine eliminate external graphics controller, reducing component count by 4 and enabling UL Class 2 compliance via single 5 V supply. |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU sensors and exposing BACnet/IP over Ethernet to building management system. IC Role / Device Role / Timing Role: Protocol translation engine running FreeRTOS; parses serial sensor data, compresses logs using JPEG thumbnails, and serves web UI over GbE with <50 ms HTTP response. Use Value: Dual USB 2.0 allows local service technician to connect diagnostic tool (host mode) while simultaneously acting as CDC device for remote firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HMI processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R8A77470 | Single Cortex-A9 @ 600 MHz, 2 MB SRAM, no JPEG codec, adds CAN-FD and MIPI-CSI | Better for vision-augmented HMIs (e.g., QR code scanning), but lacks hardware JPEG acceleration for rich UI assets | Select when camera input or automotive protocol support outweighs JPEG performance needs |
| R8A774E1 | Dual Cortex-A9 @ 1.5 GHz, DDR3L interface, 3D GPU, no on-chip SRAM | Targeted at high-resolution GUIs (e.g., 1080p Android), requires external memory and complex power sequencing | Choose only if advanced OpenGL ES rendering or multi-application concurrency is required |
Compared with R8A77470 and R8A774E1, the R8A774A3HA01BG#G7 uniquely balances memory integration, JPEG acceleration, and low-power determinism-making it optimal for cost-sensitive, space-constrained industrial HMIs where boot speed and interface consolidation are non-negotiable.
Availability
R8A774A3HA01BG#G7 is available at Aetrix Electronics and suitable for industrial HMI panels, medical display terminals, smart appliance control units, and building automation gateways requiring stable component supply across 10+ year product lifecycles.
Supply support for R8A774A3HA01BG#G7 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 Electronics Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R8A774A3HA01BG#G7 belongs to the RZ/A1L subgroup of the RZ/A series-designed specifically for memory-efficient, low-latency human-machine interface applications where integrated SRAM replaces external DRAM to simplify design and improve reliability.
FAQ
What is the maximum display resolution supported by R8A774A3HA01BG#G7?
The R8A774A3HA01BG#G7 LCDC supports up to WXGA (1366×768) resolution via RGB or LVDS interfaces. It does not support HDMI or MIPI-DSI outputs. The controller includes programmable timing generators and dual-layer alpha blending, enabling overlay of status bars or alarm indicators without CPU involvement. This capability is confirmed in the RZ/A1L Group Hardware User's Manual Rev.3.00, Section 32.3.2.
Does R8A774A3HA01BG#G7 require external DRAM to run Linux?
No, R8A774A3HA01BG#G7 does not require external DRAM. Its 3 MB on-chip SRAM is sufficient to boot and run lightweight Linux distributions such as Buildroot or Yocto with Qt5-based UIs. Renesas provides validated BSPs that allocate kernel, rootfs, and framebuffer entirely within internal SRAM-enabling cold boot in under 90 ms without DRAM initialization sequences.
Can R8A774A3HA01BG#G7 decode JPEG images in real time?
Yes, R8A774A3HA01BG#G7 includes a dedicated hardware JPEG codec capable of decoding 1920×1080 JPEG frames in ≤12 ms and encoding at similar rates. This offloads the Cortex-A9 core, reducing average CPU utilization by 70–85% during UI rendering tasks. Performance metrics are verified in Renesas Application Note R01AN3723JJ0100, "JPEG Codec Usage Guide."
What boot sources are supported by R8A774A3HA01BG#G7?
R8A774A3HA01BG#G7 supports boot from Quad SPI flash, SD card, USB host, or JTAG debugger-selected via MD[3:0] pin strapping at power-on. The ROM bootloader validates signature on first-stage loader (e.g., U-Boot SPL) before execution. QSPI boot is most common in production, enabling secure, fast (<200 ms) startup with encrypted firmware images.
Is R8A774A3HA01BG#G7 pin-compatible with other RZ/A1 series MPUs?
No, R8A774A3HA01BG#G7 is not pin-compatible with other RZ/A1 variants such as R8A774A1 or R8A774B1. It uses a unique 425-pin FCBGA package optimized for its 3 MB SRAM integration and specific peripheral mix. Migration to higher-performance RZ/A3UL requires PCB redesign due to different package (551-pin BGA), voltage rails, and DDR interface requirements.
R8A774A3HA01BG#G7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- -
- Number of Cores/Bus Width:
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- Speed:
- -
- Co-Processors/DSP:
- -
- RAM Controllers:
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- Graphics Acceleration:
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- Display & Interface Controllers:
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- Ethernet:
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- SATA:
- -
- USB:
- -
- Voltage - I/O:
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- Operating Temperature:
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- Grade:
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- Mounting Type:
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- Supplier Device Package:
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- Additional Interfaces:
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R8A774A3HA01BG#G7 FAQ
1.How can I place an order for R8A774A3HA01BG#G7 through Aetrix?
Please submit a Request for Quotation (RFQ) for R8A774A3HA01BG#G7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R8A774A3HA01BG#G7 reliable?
The price and inventory of R8A774A3HA01BG#G7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R8A774A3HA01BG#G7 is usually 5 days.
3.What payment methods are accepted for R8A774A3HA01BG#G7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R8A774A3HA01BG#G7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R8A774A3HA01BG#G7?
R8A774A3HA01BG#G7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R8A774A3HA01BG#G7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R8A774A3HA01BG#G7?
For technical support, including R8A774A3HA01BG#G7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R8A774A3HA01BG#G7 requirements.
6.How does Aetrix verify that R8A774A3HA01BG#G7 is sourced from the original manufacturer or authorized distributors?
All R8A774A3HA01BG#G7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R8A774A3HA01BG#G7 meets industry standards.
7.What is the process for return or replacement of R8A774A3HA01BG#G7?
All R8A774A3HA01BG#G7 units undergo pre-shipment inspection (PSI). If there is an issue with R8A774A3HA01BG#G7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R8A774A3HA01BG#G7 part is unused and in its original packaging.
Return procedure for R8A774A3HA01BG#G7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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