Renesas UPD78F1177AGF(R)-GAT-AX

Overview

UPD78F1177AGF(R)-GAT-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KH3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 12-bit ADC (8 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial sensors and motor drive interfaces.

For engineers reviewing the UPD78F1177AGF(R)-GAT-AX datasheet, UPD78F1177AGF(R)-GAT-AX pinout, UPD78F1177AGF(R)-GAT-AX application, or UPD78F1177AGF(R)-GAT-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface (SWD) compatible with QB-MINI2 emulator.

Technical Context

The UPD78F1177AGF(R)-GAT-AX implements the 78K0R CPU core with 16-bit ALU, 32-bit accumulator extension, and Harvard architecture memory mapping. It integrates a programmable low-voltage detection (LVD) circuit with 4 selectable thresholds (2.7 V, 3.0 V, 3.5 V, 4.2 V) and supports two power-saving modes: HALT and STOP.

Peripheral integration includes a 12-bit successive-approximation ADC with sample-and-hold, 8-channel input multiplexer, and conversion time of 1.2 μs per channel. The device uses SuperFlash® technology licensed from Silicon Storage Technology for Flash memory, enabling fast erase (10 ms per block) and page programming (100 μs per 128-byte page).

Key Specifications

Pinout & Package

The UPD78F1177AGF(R)-GAT-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across 16 I/O ports (P0–P16), analog reference inputs (AVREF0/AVREF1), power domains (EVDD0/EVSS0, EVDD1/EVSS1), and dedicated control pins including RESET, FLMD0, and REGC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1177AGF(R)-GAT-AX, R5F104LEAFB#30 offers modern peripheral IP but reduced analog precision and Flash endurance, while MB95F512KPMC-G-SNE1 delivers greater memory headroom at the cost of higher BOM count and less integrated power management.

Availability

UPD78F1177AGF(R)-GAT-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor control, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for UPD78F1177AGF(R)-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.

The 78K0R/KH3 product line was designed for cost-effective, high-reliability embedded control in industrial automation and appliance applications, emphasizing Flash endurance, mixed-signal integration, and debug accessibility.

FAQ

What is the maximum operating frequency of the UPD78F1177AGF(R)-GAT-AX?

The UPD78F1177AGF(R)-GAT-AX supports a maximum system clock frequency of 20 MHz using an external crystal or ceramic resonator. Internal PLL operation is not supported; clock generation relies on external timing sources or the on-chip sub-clock oscillator (32.768 kHz) for low-power modes. This frequency enables deterministic real-time response for motor control loops and sensor sampling at ≤100 kSPS.

Does the UPD78F1177AGF(R)-GAT-AX include hardware support for PWM generation?

Yes, the UPD78F1177AGF(R)-GAT-AX integrates multiple 16-bit timer arrays capable of generating complementary PWM outputs with programmable dead-time insertion and fault input synchronization. These timers directly drive gate drivers in motor control applications and support center-aligned and edge-aligned modes. The UPD78F1177AGF(R)-GAT-AX does not require external PWM ICs for basic three-phase inverter control.

What debug tools are compatible with the UPD78F1177AGF(R)-GAT-AX?

The UPD78F1177AGF(R)-GAT-AX supports single-wire debug (SWD) via its dedicated debug interface, fully compatible with the QB-MINI2 on-chip debug emulator. It also works with the RA78K0R assembler and CC78K0R C compiler toolchain. No JTAG adapter is required - the UPD78F1177AGF(R)-GAT-AX uses a 5-pin SWD connector (VDD, GND, SWCLK, SWDIO, RESET) for full register and memory access.

Is the UPD78F1177AGF(R)-GAT-AX qualified for automotive applications?

No, the UPD78F1177AGF(R)-GAT-AX is rated under Renesas' "Standard" quality grade, intended for industrial, office, and consumer equipment - not automotive or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature range beyond +85°C, and automotive-specific failure-in-time (FIT) data. For automotive use, consider Renesas' RL78/F1x or RH850 families instead of the UPD78F1177AGF(R)-GAT-AX.

How is Flash memory programmed on the UPD78F1177AGF(R)-GAT-AX?

Flash programming on the UPD78F1177AGF(R)-GAT-AX is performed via on-chip serial programming using the SWD interface and PG-FP5 Flash memory programmer. It supports block erase (10 ms), page programming (100 μs per 128-byte page), and verification. The UPD78F1177AGF(R)-GAT-AX does not support in-application programming (IAP) - all updates require debugger connection and halt-mode execution.