Renesas R7S721000VCBG#AC0

Overview

R7S721000VCBG#AC0 from Renesas Electronics is a high-performance 32-bit ARM Cortex-A9 microprocessor unit (MPU) in the RZ/A1H Group, featuring 512 MB DDR3L SDRAM interface, dual-channel 24-bit RGB LCD controller, and integrated 2D graphics accelerator. It operates at up to 400 MHz, supports TrustZone security, and targets embedded human-machine interface (HMI) applications requiring rich GUI and real-time responsiveness.

For engineers reviewing the R7S721000VCBG#AC0 datasheet, R7S721000VCBG#AC0 pinout, R7S721000VCBG#AC0 application, or R7S721000VCBG#AC0 equivalent, key selection criteria include DDR3L timing compliance, LCD panel interface voltage levels (1.8 V/3.3 V), TrustZone-enabled secure boot configuration, and peripheral pin multiplexing flexibility for industrial HMI designs.

Technical Context

The R7S721000VCBG#AC0 implements a dual-core ARM Cortex-A9 MPCore with NEON and VFPv4 extensions, coupled with 256 KB L2 cache and on-chip SRAM (128 KB). Its memory subsystem includes AXI bus interconnect supporting concurrent DDR3L, QSPI, and NAND Flash access with hardware ECC.

Peripherals include three CAN FD controllers (ISO 11898-1:2015 compliant), five USB 2.0 ports (two host, two device, one OTG), and a 12-bit ADC with 16 channels - all managed via a multi-layer AHB/APB bridge architecture with configurable interrupt priority and vector table relocation.

Key Specifications

Pinout & Package

Package: 516-pin Fine-Pitch Ball Grid Array (FBGA), 15 mm × 15 mm, 0.65 mm ball pitch, RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MPU-based HMI applications.

Compared with R7S721000VCBG#AC0, R7S721020VCBG#AC0 trades CPU speed and external memory flexibility for integration density, while i.MX6ULL offers higher single-core throughput but demands external graphics support and lacks TrustZone-based secure boot enforcement.

Availability

R7S721000VCBG#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, medical display terminals, smart building gateways, and automotive infotainment prototypes requiring stable component supply across multi-year production cycles.

Supply support for R7S721000VCBG#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, MPUs, analog, and power devices for industrial, automotive, and enterprise applications.

The RZ/A series, including R7S721000VCBG#AC0, was designed specifically for high-resolution, secure, real-time human-machine interface applications requiring rich graphics, connectivity, and functional safety-aware boot integrity.

FAQ

What is the maximum DDR3L memory capacity supported by the R7S721000VCBG#AC0?

The R7S721000VCBG#AC0 supports up to 512 MB of external DDR3L SDRAM via its 16-bit bus interface. This capacity is validated per Renesas Hardware Manual Rev.7.00 §5.4 address map and timing specification tables. The R7S721000VCBG#AC0 does not integrate on-die DRAM; all memory must be externally populated with JEDEC-compliant DDR3L components meeting tRC, tRCD, and tRP timing requirements specified in the R7S721000VCBG#AC0 datasheet.

Does the R7S721000VCBG#AC0 include hardware support for secure boot?

Yes, the R7S721000VCBG#AC0 implements a ROM-based secure boot flow leveraging ARM TrustZone technology. During power-on reset, the on-chip ROM verifies the cryptographic signature of the first-stage bootloader using SHA-256 and RSA-2048 before execution. This mechanism is mandatory and cannot be disabled, ensuring that only authenticated firmware runs on the R7S721000VCBG#AC0. Configuration details appear in Section 3.2 and Section 12.4 of the R7S721000VCBG#AC0 Hardware Manual.

Can the R7S721000VCBG#AC0 drive two independent LCD panels simultaneously?

Yes, the R7S721000VCBG#AC0 integrates two independent 24-bit RGB LCD controllers capable of driving separate displays with distinct timing parameters, pixel clocks, and color depths. Each controller supports resolutions up to 1280×800@60 Hz. The dual-LCD capability is implemented in hardware without CPU intervention, and pin assignments for both interfaces are fixed per the R7S721000VCBG#AC0 pin diagram in Section 1.4 of the Hardware Manual.

What peripheral interfaces does the R7S721000VCBG#AC0 provide for industrial fieldbus connectivity?

The R7S721000VCBG#AC0 includes three CAN FD controllers compliant with ISO 11898-1:2015, supporting data rates up to 5 Mbps in the data phase. It also provides five UARTs (with IrDA and LIN support), two I²C buses, and four SPI interfaces - all accessible via multiplexed pins defined in Section 1.5 of the R7S721000VCBG#AC0 Hardware Manual. These interfaces enable direct connection to Modbus RTU gateways, BACnet MSTP transceivers, and PROFIBUS DP slaves via appropriate physical layer ICs.

Is the R7S721000VCBG#AC0 qualified for automotive applications?

No, the R7S721000VCBG#AC0 is designated as a "Standard" quality grade product per Renesas documentation and is intended for industrial, medical, and consumer HMI applications - not automotive safety-critical systems. It lacks AEC-Q100 qualification, extended temperature range (-40°C to +105°C), or ASIL-certified functional safety features. For automotive use, Renesas recommends the R-Car family; the R7S721000VCBG#AC0 should not be deployed in vehicles, traffic control, or any system where failure could endanger life or cause catastrophic property damage.