Renesas UPD78F0507AMCA-CAB-G

Overview

UPD78F0507AMCA-CAB-G from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/Kx2 family, featuring 64 KB on-chip flash memory, 4 KB RAM, and a 16-bit timer/counter with PWM output capability. It operates at up to 20 MHz CPU clock frequency using an external crystal (1–20 MHz) or internal high-speed oscillator (8 MHz), and supports 5 V operation with integrated voltage regulator control (REGC pin). It is used in industrial control panels requiring deterministic real-time response and nonvolatile program storage.

For engineers reviewing the UPD78F0507AMCA-CAB-G datasheet, UPD78F0507AMCA-CAB-G pinout, UPD78F0507AMCA-CAB-G application, or UPD78F0507AMCA-CAB-G equivalent, key selection criteria include flash endurance (100,000 erase/write cycles), A/D conversion time (1.2 μs typical), interrupt latency (2–4 instruction cycles), and support for self-programming via on-chip library.

Technical Context

The UPD78F0507AMCA-CAB-G implements the 78K0 CPU core with 16-bit ALU, 8-bit data bus, and Harvard architecture. It integrates a 10-bit successive-approximation ADC with 8 input channels, a watchdog timer with independent clock source, and a serial interface supporting UART, CSI, and I²C modes.

Its peripheral set includes three 16-bit timers (T0–T2), one 8-bit timer (T3), and a real-time clock (RTC) with calendar function. The device uses a 64-pin LQFP package with dedicated reset (RESET), regulator control (REGC), and flash mode (FLMD0) pins for boot configuration and power management.

Key Specifications

Pinout & Package

This device is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad, rated for industrial temperature range (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with UPD78F0507AMCA-CAB-G, R5F100PLGSP#30 offers superior active power efficiency but sacrifices analog domain separation and 5 V tolerance, while UPD78F0537AGC-UEU-AX extends functionality with CAN and doubled memory - making it over-specified for simple industrial HMI or sensor node use cases.

Availability

UPD78F0507AMCA-CAB-G is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control interfaces, and legacy equipment retrofit projects requiring stable component supply and long-term manufacturability.

Supply support for UPD78F0507AMCA-CAB-G 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The 78K0/Kx2 product line delivers cost-optimized 8-bit MCUs targeting deterministic real-time control in resource-constrained embedded systems, with emphasis on flash reliability, analog integration, and industrial temperature operation.

FAQ

What is the maximum operating frequency of the UPD78F0507AMCA-CAB-G?

The UPD78F0507AMCA-CAB-G supports a maximum CPU clock frequency of 20 MHz. This is achieved using either an external crystal oscillator (1–20 MHz) or the internal high-speed oscillator (8 MHz) with PLL multiplication. At 20 MHz, instruction execution time is 50 ns per basic instruction cycle, enabling deterministic real-time response for industrial control tasks. The device's AC characteristics, including setup/hold times and propagation delays, are fully specified at this frequency in the official Renesas datasheet.

Does the UPD78F0507AMCA-CAB-G support in-system programming (ISP)?

Yes, the UPD78F0507AMCA-CAB-G supports in-system programming via its on-chip self-programming library (Type01). This allows firmware updates to be performed through the UART interface without removing the device from the target board. The library handles flash erase, write, and verification operations under application control, with documented interrupt response times and processing overhead. UPD78F0507AMCA-CAB-G requires no external programming voltage and operates within standard 5 V supply during ISP.

What is the purpose of the REGC pin on the UPD78F0507AMCA-CAB-G?

On the UPD78F0507AMCA-CAB-G, the REGC pin controls the internal voltage regulator that supplies the analog circuitry (ADC, RTC, and bandgap reference). When driven high, the regulator is enabled for standard 5 V operation; when pulled low, it disables the regulator to reduce power consumption in low-power modes. This pin must be externally biased - typically via a pull-up resistor - and is not internally terminated. Its state directly affects analog accuracy and current draw, making it critical for precision measurement designs using UPD78F0507AMCA-CAB-G.

How many analog input channels does the ADC in the UPD78F0507AMCA-CAB-G support?

The UPD78F0507AMCA-CAB-G integrates a 10-bit successive-approximation ADC with 8 selectable analog input channels (AN0–AN7), mapped to port pins P10–P13 and P16–P17. All channels share a common reference (AVREF) and ground (AVSS), and conversion time is guaranteed at 1.2 μs (typical) across the full industrial temperature range. The ADC supports both single-shot and continuous scan modes, with interrupt generation upon completion - a key feature for time-critical sampling in UPD78F0507AMCA-CAB-G-based systems.

Is the UPD78F0507AMCA-CAB-G pin-compatible with other members of the 78K0/Kx2 family?

The UPD78F0507AMCA-CAB-G is pin-compatible with other 64-pin LQFP variants in the 78K0/Kx2 KB2 subgroup (e.g., UPD78F0500AMCA-CAB-G, UPD78F0503AMCA-CAB-G), sharing identical pin functions for power, reset, clocks, and primary I/O ports. However, peripheral mapping differs across subgroups (KC2, KD2, etc.), so migration to non-KB2 devices requires schematic and firmware review. Pin compatibility is confirmed in Renesas' "Pin Function List" section of the 78K0/Kx2 Hardware User's Manual (Rev.4.01), specifically for UPD78F0507AMCA-CAB-G and related KB2 derivatives.