Renesas DF61582N48FPV

Overview

DF61582N48FPV from Renesas Electronics is a 32-bit CISC microcontroller based on the H8SX CPU core, featuring 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including 16-bit timers, UART, I²C, and CAN 2.0B controller. It operates at up to 40 MHz and supports multiple low-power modes for industrial control and embedded automation applications.

For engineers reviewing the DF61582N48FPV datasheet, DF61582N48FPV pinout, DF61582N48FPV application, or DF61582N48FPV equivalent, key selection considerations include its H8SX/1582 family compatibility, 48-pin LQFP package, CAN interface capability, Flash endurance (10,000 write/erase cycles), and industrial temperature range (−40°C to +85°C).

Technical Context

The DF61582N48FPV implements the H8SX/1582 R5F61582 silicon variant with upward compatibility to H8/300H and H8S architectures. It integrates a 32-bit CPU core, on-chip debug support, and system control modules including clock generation, reset control, and power management circuits.

Peripheral integration includes a 3-channel 16-bit timer pulse unit (TPU), 2-channel serial communication interface (SCI) supporting UART and clocked synchronous modes, and a single CAN 2.0B-compliant controller with 32 message buffers and programmable bit timing.

Key Specifications

Pinout & Package

DF61582N48FPV is housed in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per operating mode (Mode 1–3) and include dedicated CAN TX/RX pins, multiple I/O ports with pull-up/pull-down control, and dual reset inputs (RES# and RESW#).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F61584N48FPV and R5F61580N48FPV, DF61582N48FPV provides balanced Flash capacity (512 KB) for mid-complexity industrial firmware while maintaining full pin and peripheral compatibility across the H8SX/1582 N48FPV variants - enabling scalable design reuse without PCB revision.

Availability

DF61582N48FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, and factory automation sensor hubs requiring stable component supply and long-term lifecycle support.

Supply support for DF61582N48FPV 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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8SX/1500 Series, including DF61582N48FPV, was designed for deterministic real-time control in resource-constrained embedded systems where code density, interrupt latency, and peripheral integration are critical.

FAQ

What is the maximum operating frequency of the DF61582N48FPV?

The DF61582N48FPV operates at a maximum CPU clock frequency of 40 MHz. This speed is achievable using the on-chip PLL with external crystal input (typically 4–8 MHz). The 40 MHz performance enables sub-microsecond interrupt response and supports real-time tasks such as motor commutation and closed-loop control. DF61582N48FPV maintains timing compliance across its full industrial temperature range (−40°C to +85°C) when operated within specified voltage and decoupling conditions.

Does DF61582N48FPV support CAN communication?

Yes, DF61582N48FPV integrates a single CAN 2.0B-compliant controller supporting both standard and extended frame formats, with 32 configurable message buffers and programmable bit timing. It does not include a physical CAN transceiver; an external transceiver (e.g., SN65HVD230) must be used on the CANTX/CANRX pins. DF61582N48FPV's CAN module supports automatic retransmission, error confinement, and bus-off recovery - essential for robust industrial network operation.

What debug interface does DF61582N48FPV provide?

DF61582N48FPV features the H-UDI (Hitachi User Debug Interface), a 5-pin on-chip debug interface supporting non-intrusive breakpoints, watchpoints, register access, and program flow tracing without requiring external JTAG emulator hardware. The interface uses dedicated pins (HDI0–HDI4) and operates independently of the main CPU clock, allowing full visibility into system behavior during development and field diagnostics. DF61582N48FPV retains debug functionality even when flash security is disabled.

Is DF61582N48FPV pin-compatible with other H8SX/1582 variants?

Yes, DF61582N48FPV shares identical pinout and package (48-pin LQFP) with other H8SX/1582 devices in the N48FPV suffix group, including R5F61580N48FPV and R5F61584N48FPV. All share the same peripheral mapping, reset configuration, and power pin arrangement. This allows direct substitution in existing designs when memory or feature requirements change - no PCB layout modification is required for these variants.

What is the Flash endurance specification for DF61582N48FPV?

DF61582N48FPV specifies Flash endurance of 10,000 write/erase cycles per sector, with data retention guaranteed for 20 years at +85°C ambient. Sector erase granularity is 1 KB, enabling efficient firmware updates without full chip erasure. The device includes built-in ECC for Flash read operations and supports secure boot verification using stored signature checks. DF61582N48FPV's Flash controller also provides write-protection bits per sector to prevent accidental overwrites during runtime.