Renesas UPD70F3769GF-GAT-AX

Overview

UPD70F3769GF-GAT-AX from Renesas Electronics is a 32-bit V850ES/JG3-U microcontroller featuring 512 KB on-chip Flash memory, 48 KB RAM, and operating at up to 40 MHz. It integrates a 16-bit timer/event counter (TAA), UART, I²C, and 12-bit ADC with 16 channels - deployed in industrial motor control and factory automation systems requiring deterministic real-time response.

For engineers reviewing the UPD70F3769GF-GAT-AX datasheet, UPD70F3769GF-GAT-AX pinout, UPD70F3769GF-GAT-AX application, or UPD70F3769GF-GAT-AX equivalent, key selection criteria include Flash endurance (100K write/erase cycles), VDD range (2.7–5.5 V), and support for single-cycle instruction execution in critical control loops.

Technical Context

The UPD70F3769GF-GAT-AX implements the V850ES CPU core with 3-stage pipeline, supporting both little-endian and big-endian data access modes. It includes dedicated hardware for interrupt handling with 128 vector entries and priority-based nesting, enabling sub-1 µs interrupt latency under worst-case conditions.

Its on-chip peripheral set includes two independent UART modules with FIFO buffers, an I²C interface compliant with SMBus v2.0, and a 12-bit ADC with programmable sampling time and scan mode - all synchronized via a shared clock domain derived from the PLL-controlled system clock.

Key Specifications

Pinout & Package

UPD70F3769GF-GAT-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows Renesas' standard V850ES/JG3-U layout, supporting full peripheral mapping including dual UART, I²C, and ADC analog inputs across dedicated pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3769GF-GAT-AX, R5F57016ADFP offers higher compute throughput and security features but requires PCB redesign and toolchain migration, while UPD70F3768GF-GAT-AX provides true pin-compatible substitution with 25% less Flash and RAM - ideal for legacy design optimization.

Availability

UPD70F3769GF-GAT-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building HVAC controllers requiring stable component supply across extended product lifecycles.

Supply support for UPD70F3769GF-GAT-AX 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD70F3769GF-GAT-AX belongs to the V850ES/JG3-U microcontroller family, designed specifically for deterministic real-time control in harsh industrial environments with emphasis on reliability, low-latency interrupt handling, and long-term supply stability.

FAQ

What is the maximum operating frequency of the UPD70F3769GF-GAT-AX?

The UPD70F3769GF-GAT-AX operates at a maximum system clock frequency of 40 MHz, achieved via its on-chip PLL that multiplies an external crystal or clock input. This frequency enables a 25 ns instruction cycle time for time-critical control loops, and the device maintains full functionality-including Flash programming and ADC conversion-across the entire 2.7–5.5 V supply range at this speed.

Does the UPD70F3769GF-GAT-AX support in-circuit debugging without external hardware?

Yes, the UPD70F3769GF-GAT-AX includes a dedicated on-chip debug interface compatible with Renesas E1/E20 emulators and QB-V850MINI tools. It uses five dedicated pins (BKPT, TRST, TCK, TDO, TDI) for JTAG-based non-intrusive debugging, allowing full breakpoint, watchpoint, and trace capabilities without requiring additional debug firmware or sacrificing I/O pins during development.

What ADC performance specifications does the UPD70F3769GF-GAT-AX provide?

The UPD70F3769GF-GAT-AX integrates a 12-bit successive approximation ADC with ±1 LSB integral nonlinearity (INL), 16 input channels, and programmable sampling time down to 1.5 µs. It supports hardware-triggered conversions synchronized to PWM events and includes built-in averaging over up to 16 samples - delivering effective resolution up to 13.5 bits for low-noise industrial sensing applications.

Is the UPD70F3769GF-GAT-AX pin-compatible with other V850ES/JG3-U devices?

Yes, the UPD70F3769GF-GAT-AX shares identical pinout and package (100-pin LQFP) with other members of the V850ES/JG3-U family, including UPD70F3768GF-GAT-AX and UPD70F3764GF-GAT-AX. This allows direct PCB reuse across variants differing only in Flash/RAM size or peripheral enablement - provided the target application fits within the memory and feature constraints of the selected variant.

What power management features does the UPD70F3769GF-GAT-AX offer for battery-operated systems?

The UPD70F3769GF-GAT-AX provides four low-power modes: HALT (CPU stopped, peripherals active), STOP (CPU and most peripherals halted, RAM retained), SLEEP (PLL off, low-frequency oscillator active), and DEEP-SLEEP (all clocks stopped, RAM retention optional). Wake-up latency is < 10 µs from HALT and < 100 µs from STOP, making it suitable for intermittent-sensing applications such as wireless sensor nodes where average current can be reduced to < 50 µA.