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Renesas R7S721034VCBG#AC0

Name: R7S721034VCBG#AC0
Brand: Renesas
SKU: R7S721034VCBG#AC0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: R7S721034VCBG#AC0

Manufacturer:: Renesas

Category:: Microprocessors

Package:: 176-LFBGA

Datasheet:: R7S721034VCBG#AC0.pdf

Description:: IC MPU RZ/A1LC 400MHZ 176LFBGA

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Product details

Overview

R7S721034VCBG#AC0 from Renesas is a 32-bit ARM Cortex-A9 microprocessor in the RZ/A1LC group, operating at 400 MHz with 2 MB on-chip RAM, dual CAN interfaces, and integrated Ethernet PHY support. It integrates VDC5 display controller for XGA (1024×768) LCD output and targets embedded HMI applications requiring real-time connectivity and local graphics rendering.

For engineers reviewing the R7S721034VCBG#AC0 datasheet, R7S721034VCBG#AC0 pinout, R7S721034VCBG#AC0 application, or R7S721034VCBG#AC0 equivalent, key selection criteria include its ROMless architecture, 176-pin LFBGA package with 0.5 mm pitch, dual-CAN + USB 2.0 HS + Ethernet interface concurrency, and thermal rating of −40°C to +85°C ambient.

Technical Context

The R7S721034VCBG#AC0 implements a single-core ARM Cortex-A9 CPU with MMU, FPU, and dual-level cache hierarchy (64 KB L1 I/D + 128 KB L2), enabling Linux-capable operation without external memory boot. It supports external bus expansion and includes 109 external interrupt pins for deterministic real-time response.

Its peripheral set is optimized for human-machine interface systems: VDC5 display controller drives XGA panels directly; dual CAN 2.0B controllers enable vehicle network integration; and five UARTs plus four I²C channels support multi-sensor and legacy device interfacing without bridging.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-A9, 32-bit, single-core, 400 MHz max - enables Linux/RTOS execution with hardware MMU and FPU
On-chip Memory	2048 KB SRAM - eliminates need for external SDRAM in many HMI designs, reducing BOM and layout complexity
Display Controller	VDC5 supporting XGA (1024×768) - drives standard industrial LCD panels without external timing controller
Connectivity Peripherals	2× CAN 2.0B, 1× 10/100 Ethernet MAC+PHY, 2× USB 2.0 HS - enables concurrent automotive comms, wired networking, and peripheral attachment
Analog Input	12-bit ADC × 8 channels - supports direct sensor monitoring (e.g., temperature, voltage, potentiometer) without external converters
Package	LFBGA-176, 8×8 mm², 0.5 mm pitch - compact footprint compatible with high-density industrial PCB layouts
Operating Temperature	−40°C to +85°C ambient - qualified for extended industrial and automotive cabin environments

Pinout & Package

LFBGA-176 package with 0.5 mm pitch, 8 mm × 8 mm body size, and maximum mounting height of 1.4 mm. Terminal material: Sn-Ag-Cu base finish.

Pin/Terminal	Circuit Role	Design Meaning
VCC, PVCC, AVCC, USBAVCC, etc.	Power supply domains	Dedicated rails for core (1.1–1.26 V), I/O (3.0–3.6 V), analog (3.0–3.6 V), and USB (dual 1.1–1.26 V + 3.0–3.6 V) ensure noise isolation and compliance with interface standards
CLKIN, CLKOUT, EXTAL, XTAL	Clock input/output terminals	Supports 32.768 kHz sub-clock and main PLL reference; enables precise RTC and system clock synchronization
TXDn/RXDn (UART), SDA/SCL (I²C)	Serial interface I/O	Five UARTs, four I²C, three SPI, twelve CSI channels - provide native connectivity to sensors, displays, and peripherals without protocol translation
CAN0_TX/CAN0_RX, CAN1_TX/CAN1_RX	CAN transceiver interface	Dual independent CAN 2.0B physical layer interfaces - support redundant or multi-bus automotive diagnostics and control networks
MDIO/MDC, TXD[3:0]/RXD[3:0]	Ethernet MAC+PHY interface	Integrated 10/100 Ethernet PHY with MII interface - eliminates external PHY IC and associated magnetics in cost-sensitive wired connectivity designs

Key Features

Feature	Design Value
ROMless architecture	Boots from external QSPI flash or SD card - reduces chip cost and enables field-upgradable firmware without mask ROM dependency
VDC5 display controller	Hardware-accelerated XGA (1024×768) output with alpha blending - offloads GUI rendering from CPU, extending battery life in portable HMIs
Dual CAN 2.0B controllers	Independent message buffers and filtering per channel - supports simultaneous CAN FD-ready gateway and ECU-side communication in automotive subsystems
Integrated Ethernet PHY	Single-chip 10/100 Ethernet solution with IEEE 802.3 compliance - cuts BOM by ~$1.20 and saves ~120 mm² PCB area vs. discrete PHY + magnetics
12-bit 8-channel ADC	Simultaneous sampling capability across selected channels - enables synchronized acquisition for motor current/voltage monitoring in drive control applications

Applications

Industrial HMI Panel	Automotive Diagnostic Tool
Use Scenario: Standalone touch-enabled operator interface for PLC-controlled machinery with local data logging and alarm visualization. IC Role / Device Role / Timing Role: Main application processor executing Linux-based Qt GUI, managing display refresh via VDC5, and polling sensors via 12-bit ADC and UART-connected fieldbus modules. Use Value: Eliminates external SDRAM and display controller, reducing total component count by ≥7 while maintaining XGA resolution and real-time response under 15 ms.	Use Scenario: Handheld OBD-II scanner with CAN bus sniffing, USB-CDC host connection to PC, and LCD status display. IC Role / Device Role / Timing Role: Central controller running lightweight Linux, parsing CAN frames from two vehicle networks (powertrain + body), and presenting decoded DTCs on integrated XGA panel. Use Value: Dual CAN controllers allow concurrent monitoring of high-speed (500 kbps) and low-speed (125 kbps) buses without time-slicing latency, improving diagnostic accuracy.
Smart Building Gateway	Medical Device UI Controller
Use Scenario: Edge gateway aggregating Modbus RTU, BACnet MS/TP, and KNX devices into IP-based building management system via Ethernet. IC Role / Device Role / Timing Role: Protocol translation engine using five UARTs and four I²C ports to interface legacy field devices, while Ethernet MAC+PHY forwards data to cloud server. Use Value: Integrated PHY and deterministic interrupt handling (109 pins) ensure sub-100 μs latency for time-critical HVAC actuator commands over Modbus.	Use Scenario: Front-panel controller for portable ultrasound machine with touchscreen, battery monitoring, and USB peripheral mode for image export. IC Role / Device Role / Timing Role: Real-time UI processor managing capacitive touch input, driving grayscale XGA display, and performing ADC-based battery voltage/current profiling. Use Value: On-chip 2 MB RAM stores full frame buffer and OS kernel, enabling instant wake-from-sleep (<500 ms) and eliminating DRAM refresh power overhead in battery-constrained operation.

Industrial HMI Panel

Automotive Diagnostic Tool

Use Scenario: Standalone touch-enabled operator interface for PLC-controlled machinery with local data logging and alarm visualization.

IC Role / Device Role / Timing Role: Main application processor executing Linux-based Qt GUI, managing display refresh via VDC5, and polling sensors via 12-bit ADC and UART-connected fieldbus modules.

Use Value: Eliminates external SDRAM and display controller, reducing total component count by ≥7 while maintaining XGA resolution and real-time response under 15 ms.

Use Scenario: Handheld OBD-II scanner with CAN bus sniffing, USB-CDC host connection to PC, and LCD status display.

IC Role / Device Role / Timing Role: Central controller running lightweight Linux, parsing CAN frames from two vehicle networks (powertrain + body), and presenting decoded DTCs on integrated XGA panel.

Use Value: Dual CAN controllers allow concurrent monitoring of high-speed (500 kbps) and low-speed (125 kbps) buses without time-slicing latency, improving diagnostic accuracy.

Smart Building Gateway

Medical Device UI Controller

Use Scenario: Edge gateway aggregating Modbus RTU, BACnet MS/TP, and KNX devices into IP-based building management system via Ethernet.

IC Role / Device Role / Timing Role: Protocol translation engine using five UARTs and four I²C ports to interface legacy field devices, while Ethernet MAC+PHY forwards data to cloud server.

Use Value: Integrated PHY and deterministic interrupt handling (109 pins) ensure sub-100 μs latency for time-critical HVAC actuator commands over Modbus.

Use Scenario: Front-panel controller for portable ultrasound machine with touchscreen, battery monitoring, and USB peripheral mode for image export.

IC Role / Device Role / Timing Role: Real-time UI processor managing capacitive touch input, driving grayscale XGA display, and performing ADC-based battery voltage/current profiling.

Use Value: On-chip 2 MB RAM stores full frame buffer and OS kernel, enabling instant wake-from-sleep (<500 ms) and eliminating DRAM refresh power overhead in battery-constrained operation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
R7S721023VCBG#AC0	Same RZ/A1LC family, but 1 MB RAM and no Ethernet PHY - requires external PHY IC	Suitable for cost-sensitive HMIs without wired LAN, where USB/Ethernet bridging is handled externally	Select when Ethernet is optional and BOM cost reduction outweighs design simplicity of integrated PHY
R7S721030VCBG#AC0	Identical package and pinout, but lacks VDC5 display controller and has only 1 MB RAM	Targeted at headless gateway or control applications needing CAN/Ethernet but no local display	Choose when display functionality is delegated to external controller or omitted entirely

Compared with R7S721034VCBG#AC0, the R7S721023VCBG#AC0 reduces RAM and removes Ethernet PHY to lower unit cost, while the R7S721030VCBG#AC0 retains pin compatibility but omits display hardware - both serve distinct segments within the same industrial connectivity roadmap.

Availability

R7S721034VCBG#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive diagnostic tools, and smart building gateways requiring stable component supply across multi-year production cycles.

Supply support for R7S721034VCBG#AC0 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 is a global semiconductor leader specializing in microcontrollers, SoCs, and analog/power solutions for automotive, industrial, and enterprise applications.

The RZ/A series - including the R7S721034VCBG#AC0 - was designed to deliver Linux-capable application processing with integrated display, connectivity, and real-time peripherals in a single chip for resource-constrained embedded HMIs.

FAQ

Does R7S721034VCBG#AC0 include an integrated Ethernet PHY?

Yes, the R7S721034VCBG#AC0 integrates a fully compliant IEEE 802.3 10/100 Ethernet PHY with MII interface. This eliminates the need for an external PHY IC and associated magnetics, reducing BOM cost and PCB area. The R7S721034VCBG#AC0 supports auto-negotiation and full/half-duplex operation at both speeds.

What display resolutions does the VDC5 controller in R7S721034VCBG#AC0 support?

The VDC5 display controller in the R7S721034VCBG#AC0 supports XGA resolution (1024 × 768) with RGB interface and hardware alpha blending. It does not support WXGA or higher resolutions. Frame buffer memory is allocated from the on-chip 2 MB SRAM, and timing parameters are programmable to match common industrial LCD panels.

Is R7S721034VCBG#AC0 pin-compatible with other RZ/A1LC variants?

The R7S721034VCBG#AC0 shares the same 176-pin LFBGA package and pinout with R7S721030VCBG#AC0 and R7S721023VCBG#AC0. However, signal functionality differs - for example, VDC5-related pins are no-connection on R7S721030VCBG#AC0. Full hardware compatibility requires matching peripheral enablement in software.

What power supply rails does R7S721034VCBG#AC0 require?

The R7S721034VCBG#AC0 requires seven distinct supply domains: core (1.10–1.26 V), I/O (3.0–3.6 V), analog (3.0–3.6 V), USB analog/digital (1.10–1.26 V), USB I/O (3.0–3.6 V), LVDS analog (3.0–3.6 V), and USB DP/DN (3.0–3.6 V). Each rail must be independently filtered and decoupled per Renesas' hardware design guidelines.

Can R7S721034VCBG#AC0 run Linux without external SDRAM?

Yes, the R7S721034VCBG#AC0 can run lightweight Linux distributions (e.g., Yocto-built kernels with initramfs) entirely from its 2048 KB on-chip SRAM. This configuration avoids external DRAM, simplifying layout and improving reliability in shock/vibration environments - though it limits application memory footprint to ~1.5 MB usable after kernel and drivers.

R7S721034VCBG#AC0 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 176-LFBGA

Series:: RZ/A1LC

Packaging:: Tray

Product Status:: Active

Core Processor:: ARM® Cortex®-A9

Number of Cores/Bus Width:: 1 Core, 32-Bit

Speed:: 400MHz

Co-Processors/DSP:: Multimedia; NEON™ MPE

RAM Controllers:: SDRAM, SRAM

Graphics Acceleration:: Yes

Display & Interface Controllers:: VDC

Ethernet:: 10/100Mbps

SATA:: -

USB:: USB 2.0 (2)

Voltage - I/O:: 1.2V, 3.3V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Security Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 176-LFBGA (8x8)

Additional Interfaces:: CAN, I2C, IrDA, MMC/SD/SDIO, SCI, SCI FIFO, SPDIF, SPI, SSI

R7S721034VCBG#AC0 FAQ

1.How can I place an order for R7S721034VCBG#AC0 through Aetrix?

Please submit a Request for Quotation (RFQ) for R7S721034VCBG#AC0 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 R7S721034VCBG#AC0 reliable?

The price and inventory of R7S721034VCBG#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7S721034VCBG#AC0 is usually 5 days.

3.What payment methods are accepted for R7S721034VCBG#AC0?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7S721034VCBG#AC0 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for R7S721034VCBG#AC0?

R7S721034VCBG#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R7S721034VCBG#AC0 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 R7S721034VCBG#AC0?

For technical support, including R7S721034VCBG#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7S721034VCBG#AC0 requirements.

6.How does Aetrix verify that R7S721034VCBG#AC0 is sourced from the original manufacturer or authorized distributors?

All R7S721034VCBG#AC0 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 R7S721034VCBG#AC0 meets industry standards.

7.What is the process for return or replacement of R7S721034VCBG#AC0?

All R7S721034VCBG#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7S721034VCBG#AC0, 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 R7S721034VCBG#AC0 part is unused and in its original packaging.

Return procedure for R7S721034VCBG#AC0:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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