Renesas DF38602RFT10V

Overview

DF38602RFT10V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/300H Super Low Power Series, featuring an H8/300H CPU core with H8/300 instruction set compatibility, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including UART (SCI), I²C, timer modules, and ADC. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets battery-powered industrial control and sensor interface applications.

For engineers reviewing the DF38602RFT10V datasheet, DF38602RFT10V pinout, DF38602RFT10V application, or DF38602RFT10V equivalent, key selection criteria include its 100-pin TQFP package, low-power stop/call modes, 10-bit 8-channel ADC, dual serial interfaces (SCI ×3, I²C), and support for on-chip debugging via E7 emulator - all confirmed in the H8/38602R Group Hardware Manual Rev.3.00 (May 2007).

Technical Context

The DF38602RFT10V implements the H8/300H CPU core with 24-bit address space, supporting both big-endian and little-endian data access modes. Its system architecture integrates clock generators with main oscillator (1–20 MHz), subclock (32.768 kHz), and on-chip oscillators, plus prescalers S and W for flexible peripheral clock derivation.

Peripheral subsystems include three asynchronous serial communication interfaces (SCI0–SCI2), one I²C bus interface, 16-bit timer pulse units (TPU) with input capture/output compare, watchdog timer (WDT), and 10-bit successive-approximation ADC with sample-and-hold and internal reference. All modules are memory-mapped and controlled via dedicated registers accessible in user/supervisor mode.

Key Specifications

Pinout & Package

DF38602RFT10V is housed in a 100-pin Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch, 14 mm × 14 mm body size, and exposed thermal pad (non-electrical). Pin functions are defined per the H8/38602R Group Hardware Manual Rev.3.00 Section 1.3 (Pin Assignment) and Section 1.4 (Pin Functions).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with DF38602RFT10V, R5F38602GFP#30 offers greater I/O scalability but requires PCB redesign, while H8/3694F reduces integration but increases component count and board area - making DF38602RFT10V optimal for new designs balancing integration, power, and footprint.

Availability

DF38602RFT10V is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, and programmable logic controller I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for DF38602RFT10V 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8/38602R Group belongs to Renesas' legacy 16-bit H8 Family, designed specifically for ultra-low-power, cost-sensitive embedded control applications in factory automation, building management, and portable instrumentation.

FAQ

What is the maximum operating frequency of the DF38602RFT10V?

The DF38602RFT10V supports a maximum system clock frequency of 20 MHz, achieved using an external crystal or ceramic resonator connected to the OSC1/OSC2 pins. This frequency enables approximately 12.5 million instructions per second (MIPS) performance, sufficient for real-time control tasks such as motor commutation, sensor polling, and protocol processing. The DF38602RFT10V's clock generator includes prescalers and selectable oscillators to derive peripheral clocks independently.

Does the DF38602RFT10V include an integrated analog-to-digital converter?

Yes, the DF38602RFT10V integrates a 10-bit successive-approximation ADC with eight input channels (AN0–AN7), configurable sample-and-hold, and internal voltage reference. It supports programmable conversion triggers via software, timer match, or external event, with typical conversion time of 10 μs per sample. This ADC eliminates the need for external converters in applications like environmental monitoring and power supply telemetry within the DF38602RFT10V-based design.

What debugging tools are supported for the DF38602RFT10V?

The DF38602RFT10V is fully supported by Renesas' E7 on-chip emulator, which connects via the NMI pin and uses reserved memory regions (H'4000–H'4FFF and H'F780–H'FB7F) for program download and breakpoint control. The DF38602RFT10V hardware manual specifies that OSC1/OSC2 must be externally loaded with a resonator even when using the on-chip oscillator during E7 sessions. No JTAG interface is present - debugging relies exclusively on this proprietary E7 protocol.

What power-saving modes does the DF38602RFT10V support?

The DF38602RFT10V implements four low-power modes: Wait (CPU halted, peripherals active), Stop (main clock stopped, subclock active), Call (subclock-only operation with fast wake-up), and Deep Stop (subclock disabled, <1 μA typical current). These modes are entered via specific instruction sequences and controlled by the System Control Register (SCR). In Deep Stop mode, the DF38602RFT10V retains RAM contents and wakes on external interrupt or subclock alarm - ideal for infrequent-event sensor nodes.

Is the DF38602RFT10V pin-compatible with other H8/38602R variants?

No, the DF38602RFT10V is not pin-compatible with other H8/38602R variants such as the R5F38602GFP#30 (144-pin LQFP) or H8/38600R (different peripheral set and pin mapping). While all share the same H8/300H core and instruction set, the DF38602RFT10V uses a unique 100-pin TQFP footprint with specific I/O allocation defined in Section 1.3 of the H8/38602R Group Hardware Manual. Board-level replacement requires full layout revision.