Renesas UPD78F0513AGB-GAF-AX

Overview

UPD78F0513AGB-GAF-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KC2 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 (16 MHz), and supports 5 V operation with 61 I/O pins in a 80-pin LQFP package. It is used in industrial control panels requiring deterministic real-time response and nonvolatile program storage.

For engineers reviewing the UPD78F0513AGB-GAF-AX datasheet, UPD78F0513AGB-GAF-AX pinout, UPD78F0513AGB-GAF-AX application, or UPD78F0513AGB-GAF-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (1.6 µs typical), interrupt latency (3–5 cycles), and support for self-programming via on-chip library - all confirmed for this exact variant.

Technical Context

The UPD78F0513AGB-GAF-AX implements the 78K0 CPU core with 16-bit ALU, 16-level hardware stack, and instruction set compatible with earlier 78K/0 devices. It integrates a 10-bit successive-approximation ADC with 16 input channels, a watchdog timer with independent clock source, and serial interfaces including CSI (synchronous), UART (asynchronous), and I²C-compatible interface.

Its memory subsystem includes 64 KB Flash (organized as 128 × 512-byte blocks), 4 KB RAM, and 256 bytes of data flash for EEPROM emulation. The device uses a dual-power domain architecture: EVDD/EVSS for analog peripherals (ADC, voltage reference) and VDD/VSS for digital logic, enabling precise analog measurement under mixed-signal conditions.

Key Specifications

Pinout & Package

UPD78F0513AGB-GAF-AX is housed in an 80-pin LQFP package with exposed thermal pad (GB suffix). Pin functions are defined per Renesas User's Manual Rev.4.01, Section 2.1.2 (78K0/KC2), and include dedicated ports P0–P7, P12–P14, analog inputs (AN0–AN15), power supply pins (VDD, EVDD, VSS, EVSS), reset (RESET), oscillator (X1/X2), and debug interface (FLMD0, REGC).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0513AGB-GAF-AX, the R5F100PLGFB#30 offers lower active power but lacks data flash for EEPROM emulation, while the UPD78F0512AGB-GAF-AX shares identical peripherals and timing but reduces Flash margin - both require validation of firmware footprint and data retention requirements.

Availability

UPD78F0513AGB-GAF-AX is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, and factory floor sensor nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for UPD78F0513AGB-GAF-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The 78K0/KC2 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 toolchain maturity.

FAQ

What is the maximum operating frequency of the UPD78F0513AGB-GAF-AX?

The UPD78F0513AGB-GAF-AX supports a maximum CPU clock frequency of 20 MHz when driven by an external crystal oscillator (1–20 MHz range) or the internal high-speed oscillator (16 MHz). This frequency enables instruction execution at 50 ns per cycle and supports real-time tasks such as PWM generation and ADC sampling at up to 625 kSPS. The device's AC characteristics, including setup/hold times and propagation delays, are fully specified at this maximum rate in the official Renesas datasheet.

Does the UPD78F0513AGB-GAF-AX include an integrated voltage reference for the ADC?

Yes, the UPD78F0513AGB-GAF-AX includes an internal 2.5 V voltage reference that can be selected as the ADC reference source via the ADPC register. Alternatively, it supports external reference input on the AVREF pin. This dual-reference capability allows flexible analog measurement configurations - for example, using the internal reference for stable ratiometric measurements or AVREF for higher-precision external references. The internal reference is calibrated and specified across temperature and supply voltage ranges in the Renesas 78K0/KC2 hardware manual.

How many Flash write/erase cycles does the UPD78F0513AGB-GAF-AX support?

The UPD78F0513AGB-GAF-AX guarantees 100,000 write/erase cycles for its 64 KB on-chip Flash memory, as documented in Renesas' 78K0/KC2 User's Manual Rev.4.01. This endurance rating applies to standard erase operations (512-byte block erase) under recommended operating conditions (T_A = −20 to +75°C, V_DD = 4.5 to 5.5 V). The device also supports data flash functionality via software emulation, enabling EEPROM-like wear leveling across designated Flash sectors - a feature confirmed for the UPD78F0513AGB-GAF-AX variant.

What debug interface does the UPD78F0513AGB-GAF-AX support?

The UPD78F0513AGB-GAF-AX supports on-chip debugging via the FLMD0 pin and REGC pin, which together implement Renesas' single-wire debug interface compatible with the QB-MINI2 emulator. This interface enables full breakpoint control, register visibility, and Flash programming without requiring dedicated JTAG pins. Debug access is enabled during reset sequence via FLMD0 state sampling, and the same pins retain their primary I/O functions after initialization - eliminating the need for dedicated debug-only pins and preserving board layout flexibility.

Is the UPD78F0513AGB-GAF-AX qualified for automotive applications?

No, the UPD78F0513AGB-GAF-AX is rated as a Standard quality grade device per Renesas' classification system, intended for industrial, office, and consumer equipment - not automotive or safety-critical systems. Its datasheet specifies operating ambient temperature range of −20 to +75°C and does not include AEC-Q100 qualification, extended temperature screening, or automotive-specific failure-in-time (FIT) data. For automotive use, Renesas recommends the RL78/F1x or RH850 families, which undergo rigorous automotive qualification and support −40 to +125°C operation.