Renesas DF71464AN80FPV#GZ

Overview

DF71464AN80FPV#GZ from Renesas Electronics is a 32-bit SuperH™ RISC microcontroller in the SH7146 Group, featuring a 40 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including CPG, INTC, UBC, and multiple serial interfaces. It operates from a 3.0–3.6 V supply and targets industrial control and embedded instrumentation systems requiring deterministic real-time response.

For engineers reviewing the DF71464AN80FPV#GZ datasheet, DF71464AN80FPV#GZ pinout, DF71464AN80FPV#GZ application, or DF71464AN80FPV#GZ equivalent, key selection criteria include its 128-pin LQFP package, 40 MHz operation with internal PLL, Flash write/erase endurance of 10,000 cycles, and support for single-chip and MCU extension operating modes.

Technical Context

The DF71464AN80FPV#GZ implements the SuperH RISC engine core with 32-bit data path and 32-bit address space, supporting both big-endian and little-endian data access. Its Clock Pulse Generator (CPG) enables flexible clock sourcing via crystal resonator or external clock input, with programmable frequency division and oscillator stop detection.

Interrupt handling is managed by a dedicated Interrupt Controller (INTC) supporting up to 128 interrupt sources with priority encoding and vector table mapping. The User Break Controller (UBC) provides hardware-assisted debugging with two independent break points, each configurable for address range, bus cycle type, and data value matching (F-ZTAT version only).

Key Specifications

Pinout & Package

DF71464AN80FPV#GZ is housed in a 128-pin LQFP package with exposed thermal pad. Pin functions are defined per SH7146 Group specification, including dedicated power/ground pairs, multiplexed I/O ports (P0–P15), and dedicated peripheral pins for CPG, INTC, and UBC subsystems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F71464AN80FPV#GZ and SH7146R50FPV, DF71464AN80FPV#GZ offers optimal balance of deterministic 40 MHz execution, industrial temperature support, and proven Flash reliability-making it preferred for cost-sensitive, volume-manufactured control modules where marginal speed gain is unnecessary.

Availability

DF71464AN80FPV#GZ is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation HMIs, and energy meter data loggers requiring stable component supply and long-term lifecycle assurance.

Supply support for DF71464AN80FPV#GZ 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 infrastructure markets.

The SH7146 Group, including DF71464AN80FPV#GZ, was designed for deterministic real-time control in industrial automation, test equipment, and embedded instrumentation where reliability, Flash endurance, and interrupt latency predictability are critical.

FAQ

What is the maximum operating frequency of the DF71464AN80FPV#GZ?

The DF71464AN80FPV#GZ has a maximum CPU clock frequency of 40 MHz, achieved using the on-chip Clock Pulse Generator with internal PLL. This frequency is validated across the full −40°C to +85°C operating temperature range and 3.0–3.6 V supply voltage, ensuring consistent real-time performance in industrial environments. The DF71464AN80FPV#GZ does not support overclocking beyond this rated limit.

Does the DF71464AN80FPV#GZ include on-chip Flash memory, and what is its endurance?

Yes, the DF71464AN80FPV#GZ integrates 512 KB of on-chip Flash memory with guaranteed endurance of 10,000 write/erase cycles per sector. This Flash supports in-application programming (IAP) and EEPROM emulation functions, enabling robust parameter storage and firmware updates without external nonvolatile memory. The DF71464AN80FPV#GZ Flash architecture includes error detection and sector protection features.

What package type and pin count does the DF71464AN80FPV#GZ use?

The DF71464AN80FPV#GZ is supplied in a 128-pin LQFP package measuring 20 mm × 20 mm with 0.5 mm lead pitch and an exposed thermal pad. This package is RoHS-compliant and qualified for reflow soldering per J-STD-020. Pin assignments follow the SH7146 Group standard layout, and the DF71464AN80FPV#GZ shares mechanical and thermal characteristics with other members of the family.

How does the DF71464AN80FPV#GZ handle reset conditions?

The DF71464AN80FPV#GZ supports three primary reset sources: power-on reset (POR), manual reset via the active-low RES# pin, and oscillator stop detection. All resets initialize the CPU, clear registers to known states, and force entry into the boot vector. The DF71464AN80FPV#GZ includes internal POR circuitry with hysteresis and external reset synchronization logic to prevent metastability.

Is the DF71464AN80FPV#GZ pin-compatible with other SH7146 Group microcontrollers?

Yes, the DF71464AN80FPV#GZ is pin-compatible with other 128-pin LQFP variants in the SH7146 Group, including R5F71464AN80FPV#GZ and SH7146R50FPV. Identical pin functions, power sequencing, and I/O electrical characteristics allow direct substitution in existing layouts-provided clock frequency, Flash size, and software configuration requirements align with the target application's needs.