Renesas HD6473308RFJ10

Overview

HD6473308RFJ10 from Renesas Technology Corp. is a single-chip 16-bit microcontroller based on the H8/300 CPU core, designed for embedded industrial control. It integrates 16 KB on-chip ROM, 512 bytes RAM, 15-byte dual-port RAM, 10-bit A/D converter, serial I/O, PWM timers, and multiple 8-/16-bit timers. It operates at up to 10 MHz and supports master-slave interface applications in programmable logic controllers.

For engineers reviewing the HD6473308RFJ10 datasheet, HD6473308RFJ10 pinout, HD6473308RFJ10 application, or HD6473308RFJ10 equivalent, key selection criteria include on-chip memory size, A/D resolution and channel count, timer architecture (free-running vs. PWM), dual-port RAM availability for inter-processor communication, and support for ZTAT™ electrically programmable ROM.

Technical Context

The HD6473308RFJ10 implements the H8/300 CPU instruction set with 16-bit data bus and 24-bit address space, enabling direct access to up to 16 MB of external memory. Its internal clock generator accepts crystal or external clock input and divides to produce E-clock at 1/1, 1/2, or 1/4 frequency for synchronized peripheral operation.

It supports three operating modes: expanded mode (external bus interface), single-chip mode (on-chip ROM/RAM only), and PROM mode (for in-system programming). The dual-port RAM enables byte-level parallel communication between host and H8/330, with dedicated PCCSR control/status register and 15 addressable registers (PCDR0–PCDR14).

Key Specifications

Pinout & Package

HD6473308RFJ10 is housed in a 100-pin plastic QFP (Quad Flat Package) with 0.5 mm pitch, designated as PQFP100. Pin functions are defined per the H8/330 hardware manual Section 1.3, including multiplexed address/data bus (AD0–AD15), control signals (AS, DTACK, R/W), and dedicated peripheral pins (e.g., ADTRG, TXD, RXD, PWM0–PWM1, TIN0–TIN3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F3308FJ and HD6413308FJ, HD6473308RFJ10 uniquely combines mask-programmed ROM stability, full 16 KB code storage, and dedicated dual-port RAM-making it the only option among the three qualified for safety-critical, long-lifecycle industrial control systems requiring guaranteed firmware integrity and host co-processor communication.

Availability

HD6473308RFJ10 is available at Aetrix Electronics and suitable for programmable logic controllers, industrial motor drives, remote I/O nodes, and embedded HMI controllers requiring stable component supply over extended production lifecycles.

Supply support for HD6473308RFJ10 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 Technology Corp. was formed in 2003 through the merger of Hitachi and Mitsubishi Electric's semiconductor operations, specializing in microcontrollers, analog, and power devices for industrial and automotive markets.

The H8/330 family-including HD6473308RFJ10-was engineered for deterministic real-time control in factory automation, offering integrated peripherals, low-latency interrupt response, and robust EMI-tolerant packaging for harsh electrical environments.

FAQ

What does the 'RFJ' suffix indicate in HD6473308RFJ10?

The 'RFJ' suffix in HD6473308RFJ10 identifies it as a mask-programmed ROM variant in a 100-pin PQFP package. 'R' denotes mask ROM, 'F' specifies the 100-pin plastic QFP, and 'J' indicates commercial temperature grade (0°C to +70°C). This distinguishes it from flash-based ('F') or windowed ceramic ('C') versions, confirming its use in high-volume, firmware-immutable applications.

Does HD6473308RFJ10 support external memory expansion?

Yes, HD6473308RFJ10 supports external memory expansion in expanded mode using its multiplexed AD0–AD15 bus, AS, DTACK, and R/W signals. It can interface with external ROM, RAM, or peripherals up to 16 MB address space. Configuration requires setting MDCR register bits and connecting appropriate wait-state logic via DTACK to ensure timing compliance at 10 MHz E-clock.

How is the dual-port RAM used in HD6473308RFJ10?

The HD6473308RFJ10 includes 15 bytes of dual-port RAM (PCDR0–PCDR14) accessible simultaneously by host and H8/330 CPUs via separate address spaces. Communication uses PCCSR register flags (e.g., RDY, BUSY) for handshaking. This enables real-time data exchange-such as status updates or command buffers-without shared bus arbitration or software polling overhead.

What A/D conversion modes does HD6473308RFJ10 support?

HD6473308RFJ10 supports two A/D modes: single mode (SCAN = 0) for one-shot conversion of a selected channel, and scan mode (SCAN = 1) for automatic sequential conversion across all 8 channels. Conversion timing is programmable via ADCR register, and results are stored in ADDR registers H'FFE0–H'FFE6 with 10-bit resolution and ±1 LSB accuracy.

Can HD6473308RFJ10 operate in low-power modes?

Yes, HD6473308RFJ10 supports Sleep, Software Standby, and Hardware Standby modes controlled via SYSCR and MDCR registers. In Hardware Standby, clocks to CPU and most peripherals halt while retaining RAM contents; wake-up occurs via external interrupt or reset. Typical standby current is <10 µA at 5 V, enabling battery-backed operation in intermittent-monitoring applications.