Renesas Electronics America Inc R7F701278EAFP#AC6

Mfr. Part

R7F701278EAFP#AC6

Manufacturer

Renesas Electronics Corporation

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Detailed Description

32-bit automotive microcontroller from the RH850/C1M-Ax series. Single RH850G3MH core up to 240 MHz. 2 MB Flash, 128 KB RAM, 64 KB EEPROM. 176-pin LFQFP (24 x 24 mm) package. 5 V supply (4.5–5.5 V). Junction temperature -40 to +150°C. Integrated 30-channel 12-bit SAR ADC. Interfaces: CAN, LIN, SCI (UART), CSI. Peripherals: DMA, PWM, watchdog (WDT). 81 I/O pins. Internal oscillator. RoHS3 compliant. Surface-mount. Shipped in tray.

Key Features

32-bit RH850G3MH CPU, single core, up to 240 MHz

2 MB on-chip Flash program memory

128 KB RAM and 64 KB EEPROM

30-channel 12-bit SAR ADC for accurate sensing

Peripherals: DMA, PWM timers, watchdog

Interfaces: CAN bus, LIN bus, SCI (UART), CSI (SPI-like)

81 user-configurable I/O pins

Internal oscillator; supports external clocking (see datasheet)

5 V operation (4.5–5.5 V)

Wide junction temperature range: -40 to +150°C

RH850/C1M-Ax ecosystem and toolchain support

Key Advantages

Strong real-time performance at 240 MHz

Robust 5 V operation suited to noisy automotive environments

Handles high temperatures for under-hood and industrial use

Rich analog and timers reduce external components and BOM cost

Large Flash/EEPROM enable complex applications and data logging

Built-in CAN and LIN simplify vehicle network integration

Mature RH850 platform with broad development support

Packaging

Type: 176-LFQFP (low-profile fine-pitch quad flat package)

Material: Molded plastic epoxy body; lead-free matte-tin finish (RoHS3)

Size: 24 mm x 24 mm package body; low profile height

Pins: 176 leads; typical pitch 0.5 mm; 81 I/O available to the user

Mounting: Surface mount; shipment in tray

Pin configuration: Dedicated pins for power, ground, clocks, debug, ADC, and serial buses (see datasheet for full pin map)

Thermal characteristics: Junction temperature -40 to +150°C; use good copper areas and thermal vias for heat spreading; consult datasheet for θJA/θJC and power dissipation guidelines

Electrical properties: 4.5–5.5 V supply; internal oscillator; 30 x 12-bit ADC channels; CAN/LIN/SCI/CSI interfaces

Lifecycle

Status: Active based on latest publicly available information

Nearing discontinuation: No current indication

Direct drop-in equivalents: Not publicly confirmed beyond option codes within the same base product number (R7F701278)

Alternatives: Other RH850 family variants may fit different memory sizes, peripherals, or packages (e.g., additional RH850 C1M or F1 series members). Suitability depends on pinout, voltage, and feature needs

Recommendation: For verified drop-in or second-source options, please contact our sales team via the Y-IC website. We will match alternatives to your exact requirements

Key Application Areas

Automotive body control modules and gateway ECUs

Chassis and actuator control (pumps, valves, motors)

Instrument clusters and driver information systems

HVAC, seating, window, and lighting controllers

Industrial motor and actuator controllers requiring 5 V and high temperature capability

General embedded control on CAN/LIN networks

Datasheet

Y-IC provides the most authoritative datasheet for this model on our product page. Download it now to get full pinouts, electrical specs, timing, and design guidelines.

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