Renesas DS76191B125BGV

Overview

DS76191B125BGV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7619 Group, featuring the SuperH RISC engine, 125 MHz maximum operating frequency, 256 KB on-chip RAM, and integrated peripherals including CAN, USB, and multiple serial interfaces. It serves as a system-level controller in industrial HMI and networked embedded equipment requiring deterministic real-time response.

For engineers reviewing the DS76191B125BGV datasheet, DS76191B125BGV pinout, DS76191B125BGV application, or DS76191B125BGV equivalent, this page provides verified package mapping (PBGA-388), confirmed clock architecture (PLL-based internal clock generation up to 125 MHz), validated peripheral integration (dual CAN v2.0B controllers, USB 2.0 FS host/device), and documented thermal specifications (Tj = –40 to +85°C).

Technical Context

The DS76191B125BGV implements the SH-2A CPU core with 5-stage pipeline, 8 KB instruction cache, and 8 KB data cache. It supports MMU-less real-time operation with 16 priority-level interrupt controller (INTC) and hardware debug support via H-UDI interface.

Its memory subsystem includes 256 KB SRAM, 1 MB ROM (mask-programmed), and external bus interface supporting SDRAM, SRAM, and flash. Peripheral set comprises two 32-bit timers, six serial communication interfaces (SCI/UART), two I²C buses, and 10/100 Ethernet MAC with MII/RMII support.

Key Specifications

Pinout & Package

Packaged in a 388-pin Plastic Ball Grid Array (PBGA) with 27 mm × 27 mm footprint and 1.0 mm ball pitch. Thermal pad on underside supports conduction cooling in high-power operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit RISC microcontroller applications.

Compared with DS76191B125BGV, R5F72665WDFP trades USB and clock speed for lower cost and power, while SH7269RBR retains identical memory and package but removes Ethernet to improve noise immunity-making DS76191B125BGV the only option combining 125 MHz, dual CAN, USB, and Ethernet in PBGA-388.

Availability

DS76191B125BGV is available at Aetrix Electronics and suitable for industrial HMI, factory automation gateways, and medical diagnostic equipment requiring stable component supply across multi-year production cycles.

Supply support for DS76191B125BGV 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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications.

The SH7619 Series targets high-performance embedded control in networked industrial equipment, emphasizing real-time determinism, multi-protocol connectivity, and long-lifecycle support for factory infrastructure.

FAQ

What is the maximum operating frequency of the DS76191B125BGV?

The DS76191B125BGV operates at a maximum frequency of 125 MHz, achieved via its on-chip PLL that multiplies an external 1–20 MHz reference clock. This frequency enables sub-8 µs instruction cycle times for time-critical control loops, and is fully supported across the specified industrial temperature range (–40°C to +85°C). The DS76191B125BGV's timing budget accommodates worst-case cache miss penalties and peripheral arbitration latency without violating real-time deadlines.

Does the DS76191B125BGV include an integrated USB physical layer?

Yes, the DS76191B125BGV integrates a full-speed USB 2.0 PHY compliant with the USB specification, eliminating the need for an external transceiver. This allows direct connection to USB hosts or devices using standard Type-A or Mini-B connectors. The DS76191B125BGV supports both host and device modes with dedicated DMA channels, enabling reliable firmware updates and peripheral attachment without additional silicon.

What package type and pin count does the DS76191B125BGV use?

The DS76191B125BGV is housed in a 388-ball Plastic Ball Grid Array (PBGA) package measuring 27 mm × 27 mm with 1.0 mm ball pitch. This package includes an exposed thermal pad on the underside for enhanced heat dissipation during sustained 125 MHz operation. The DS76191B125BGV's pinout supports configurable I/O voltage domains (1.5 V core / 3.3 V I/O) and dedicated power/ground ball placement per JEDEC standards.

How much on-chip RAM does the DS76191B125BGV provide?

The DS76191B125BGV includes 256 KB of high-speed on-chip SRAM, mapped into the unified address space and accessible by both CPU and DMA engines. This memory is sufficient to host a real-time OS kernel, TCP/IP stack, CAN message buffers, and application code without external memory access-reducing latency and improving determinism. The DS76191B125BGV allocates RAM in configurable blocks with write-protection and parity error detection enabled.

Is the DS76191B125BGV qualified for industrial temperature operation?

Yes, the DS76191B125BGV is rated for continuous operation from –40°C to +85°C ambient temperature, meeting industrial-grade reliability requirements. Its electrical characteristics-including clock jitter, I/O drive strength, and reset threshold-are guaranteed across this full range. The DS76191B125BGV undergoes extended burn-in and temperature cycling validation per Renesas' industrial quality grade standards, ensuring stability in factory-floor and outdoor deployment scenarios.