Renesas UPD78F1188AGJ-GAE-AX

Overview

UPD78F1188AGJ-GAE-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KE3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 12-bit ADC, UART, I²C, and timer modules. It operates at up to 20 MHz, supports 5 V operation, and targets embedded control in industrial equipment and consumer appliances.

For engineers reviewing the UPD78F1188AGJ-GAE-AX datasheet, UPD78F1188AGJ-GAE-AX pinout, UPD78F1188AGJ-GAE-AX application, or UPD78F1188AGJ-GAE-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade quality standards per Renesas documentation.

Technical Context

The UPD78F1188AGJ-GAE-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory organization, and instruction set compatible with earlier 78K0 series devices. It integrates a 12-bit successive-approximation ADC with 16 input channels and programmable sampling time.

Peripheral integration includes three 16-bit timer/counters (with PWM output capability), two UART channels supporting asynchronous communication, one I²C interface for multi-master bus operation, and a watchdog timer with independent clock source. The device uses SuperFlash® technology licensed from Silicon Storage Technology for its on-chip Flash memory.

Key Specifications

Pinout & Package

The UPD78F1188AGJ-GAE-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 15 I/O ports (P0–P7, P12–P14), power/ground terminals (VDD, EVDD, VSS, EVSS), analog reference (AVREF), reset (RESET), mode control (FLMD0), and regulator capacitor connection (REGC).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1188AGJ-GAE-AX, R5F100LEAFB#30 offers superior energy efficiency but less Flash and RAM, while UPD78F1154AGC-GAE-AX provides identical architecture and pin compatibility at lower memory density-enabling drop-in replacement where full 128 KB is not required.

Availability

UPD78F1188AGJ-GAE-AX is available at Aetrix Electronics and suitable for industrial motor control, smart appliance interface, and factory automation I/O modules requiring stable component supply and long-term production continuity.

Supply support for UPD78F1188AGJ-GAE-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 manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.

The 78K0R/KE3 product line delivers cost-optimized 16-bit MCUs for industrial and consumer applications requiring robust analog integration, deterministic real-time performance, and long-lifecycle support.

FAQ

What is the maximum operating frequency of the UPD78F1188AGJ-GAE-AX?

The UPD78F1188AGJ-GAE-AX operates at a maximum CPU clock frequency of 20 MHz under standard conditions. This frequency is supported across the full −40°C to +85°C operating temperature range and 4.5 V to 5.5 V supply voltage, as specified in the Renesas 78K0R/KE3 user's manual U17854EJ9V0UD. The device achieves this using an internal high-speed oscillator or external crystal input routed through its system clock generator.

Does the UPD78F1188AGJ-GAE-AX support in-system programming (ISP)?

Yes, the UPD78F1188AGJ-GAE-AX supports in-system programming via its on-chip bootloader and dedicated FLMD0 pin configuration. Firmware updates can be performed through UART using Renesas' standard Flash programming protocol without removing the device from the target board. This capability is documented in the UPD78F1188AGJ-GAE-AX section of the 78K0R/KE3 user's manual and validated with PG-FP4 and PG-FP5 programmers.

What is the Flash memory endurance rating for UPD78F1188AGJ-GAE-AX?

The UPD78F1188AGJ-GAE-AX features 128 KB of on-chip Flash memory rated for 100,000 write/erase cycles per block, as confirmed in Renesas documentation for the 78K0R/KE3 family. This endurance level supports field firmware updates and data logging applications typical in industrial control systems where long-term reliability is required.

Is the UPD78F1188AGJ-GAE-AX pin-compatible with other 78K0R/KE3 devices?

The UPD78F1188AGJ-GAE-AX shares the same 100-pin LQFP package and pin assignment with other members of the 78K0R/KE3 family, including UPD78F1154AGC-GAE-AX and UPD78F1146AGC-GAE-AX. Pin compatibility is maintained across functionally equivalent ports and peripherals, enabling layout reuse where memory size and peripheral enablement align with design requirements.

What quality grade applies to the UPD78F1188AGJ-GAE-AX according to Renesas specifications?

The UPD78F1188AGJ-GAE-AX is classified under Renesas' "Standard" quality grade, as stated in document U17854EJ9V0UD and consistent with Renesas' published quality grading policy. This grade authorizes use in computers, office equipment, communications gear, industrial robots, and home appliances-but excludes life-support, aerospace, or nuclear applications without explicit written consent.