Renesas UPD78F1152AGK-GAK-AX

Overview

UPD78F1152AGK-GAK-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 10-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range of 2.7 V to 5.5 V and targets embedded control in industrial HMI and sensor interface modules.

For engineers reviewing the UPD78F1152AGK-GAK-AX datasheet, UPD78F1152AGK-GAK-AX pinout, UPD78F1152AGK-GAK-AX application, or UPD78F1152AGK-GAK-AX equivalent, key selection criteria include Flash endurance (100,000 erase/write cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface - all critical for cost-sensitive, long-lifecycle industrial firmware deployments.

Technical Context

The UPD78F1152AGK-GAK-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture separating program and data memory. It integrates a programmable low-voltage detection circuit (LVD) with 3 selectable thresholds (2.7 V, 3.3 V, 4.2 V) and supports multiple clock sources: internal high-speed oscillator (20 MHz), internal low-speed oscillator (15 kHz), and external crystal (up to 20 MHz).

Peripheral configuration includes 80 I/O pins across 11 ports (P0–P7, P12–P14), with port functions configurable per pin (e.g., P00–P06 as general I/O or UART/ADC inputs). The device uses SuperFlash® technology licensed from SST for its Flash memory, enabling fast erase (≤100 ms per block) and single-cycle read access at maximum frequency.

Key Specifications

Pinout & Package

UPD78F1152AGK-GAK-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 78K0R/KE3 layout, optimized for noise immunity and mixed-signal routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LGSP and MB95560P, the UPD78F1152AGK-GAK-AX delivers optimal balance of Flash density, analog integration, and deterministic real-time response for industrial control - avoiding both resource constraints of smaller 78K0R variants and unnecessary complexity of 32-bit alternatives.

Availability

UPD78F1152AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial HMI panels, sensor signal conditioning units, smart power meters, and factory automation I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1152AGK-GAK-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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The UPD78F1152AGK-GAK-AX belongs to the 78K0R/KE3 product line, designed specifically for cost-sensitive, high-reliability industrial control applications demanding robust analog integration and long-term supply stability without sacrificing real-time determinism.

FAQ

What is the maximum operating frequency of the UPD78F1152AGK-GAK-AX?

The UPD78F1152AGK-GAK-AX operates at a maximum CPU frequency of 20 MHz using its internal high-speed oscillator or an external crystal. This frequency is fully supported across the entire specified voltage range (2.7 V to 5.5 V) and temperature range (−40°C to +85°C), with zero-wait-state execution enabled by its on-chip RAM and optimized bus architecture. The UPD78F1152AGK-GAK-AX maintains timing compliance without derating under worst-case conditions.

Does the UPD78F1152AGK-GAK-AX support in-system programming (ISP)?

Yes, the UPD78F1152AGK-GAK-AX supports in-system programming via its on-chip bootloader activated by pulling FLMD0 low at reset. Programming is performed through UART using Renesas' Flash Development Toolkit (FDT) or third-party tools compliant with the 78K0R serial programming protocol. The UPD78F1152AGK-GAK-AX requires no external programming hardware beyond a standard UART interface and supports field firmware updates without removing the device from the PCB.

What ADC resolution and channel count does the UPD78F1152AGK-GAK-AX provide?

The UPD78F1152AGK-GAK-AX integrates a 10-bit successive approximation ADC with 16 input channels, including dedicated pins on Port 12 (AN120–AN124) for simultaneous sampling. It achieves ±1 LSB integral nonlinearity and supports programmable sampling times (1.5 to 256 PCLK cycles) to optimize accuracy versus conversion speed. The UPD78F1152AGK-GAK-AX ADC operates independently of CPU activity, allowing background conversions with interrupt notification upon completion.

Is the UPD78F1152AGK-GAK-AX pin-compatible with other 78K0R/KE3 devices?

No, the UPD78F1152AGK-GAK-AX is not pin-compatible with lower-pin-count members of the 78K0R/KE3 family such as the 64-pin or 80-pin variants. Its 100-pin LQFP package and full 80 GPIO allocation reflect its position as a high-peripheral-count variant. However, it shares identical register mapping, instruction set, and peripheral IP blocks with other 100-pin KE3 devices like UPD78F1146AGK-GAK-AX, enabling firmware reuse across the same package footprint.

What debug capabilities does the UPD78F1152AGK-GAK-AX offer?

The UPD78F1152AGK-GAK-AX features Renesas' single-wire On-Chip Debug Support (OCDS), providing non-intrusive breakpoints, watchpoints, real-time variable monitoring, and trace buffer access using only one dedicated debug pin (BKGD). It supports full-speed debugging without halting peripherals, enabling accurate timing analysis of UART, timer, and ADC behavior. The UPD78F1152AGK-GAK-AX debug interface is compatible with Renesas E2 emulator and third-party JTAG/SWD adapters with OCDS firmware support.