Renesas UPD70F3033AYGC-8EU-A

Overview

UPD70F3033AYGC-8EU-A from Renesas Electronics is a 32-bit V850/SB1 single-chip microcontroller with 256 KB flash memory, 16 KB RAM, 83 I/O lines, 12-channel 10-bit A/D converter, and integrated UART/CSI/I²C interfaces - designed for AV equipment including car audio and digital TV systems.

For engineers reviewing the UPD70F3033AYGC-8EU-A datasheet, UPD70F3033AYGC-8EU-A pinout, UPD70F3033AYGC-8EU-A application, or UPD70F3033AYGC-8EU-A equivalent, key selection considerations include flash-based in-system programmability, 100-pin LQFP (14 × 14 mm) package compatibility, real-time output port support, and I²C interface availability in the -AY variant.

Technical Context

The UPD70F3033AYGC-8EU-A implements the V850/SB1 32-bit RISC CPU core with 74 instructions, 32 × 32-bit general-purpose registers, and hardware multiplier (16 × 16 → 32). It supports external memory expansion via 16-bit multiplexed AD bus (AD0–AD15), 21-bit address bus (A1–A21), and dedicated bus control signals (LBEN/UBEN/ASTB/DSTB).

Its peripheral set includes six 8-bit timers (TM2–TM7), two 16-bit timers (TM0/TM1), watchdog and watch timers, six-channel DMA controller, and four serial interfaces: two UARTs (UART0/UART1), four clocked serial interfaces (CSI0–CSI3), one variable-length 3-wire CSI4, and dual I²C buses (I²C0/I²C1) - all accessible through function-multiplexed pins on the 100-pin LQFP.

Key Specifications

Pinout & Package

Package: 100-pin plastic LQFP (fine pitch), 14 mm × 14 mm, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit microcontroller applications.

Compared with UPD70F3033AGC-8EU and UPD70F3033AYGF-3BA, the UPD70F3033AYGC-8EU-A uniquely combines I²C support with the compact 14 × 14 mm LQFP package - enabling space-constrained AV designs requiring multi-peripheral connectivity without PCB redesign.

Availability

UPD70F3033AYGC-8EU-A is available at Aetrix Electronics and suitable for car audio systems, digital television receivers, home theater amplifiers, and set-top box controllers requiring stable component supply across design, qualification, and production phases.

Supply support for UPD70F3033AYGC-8EU-A 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 V850/SB1 product line, including UPD70F3033AYGC-8EU-A, was engineered specifically for cost-sensitive, high-reliability AV equipment requiring flash-based flexibility and rich peripheral integration.

FAQ

What is the maximum operating frequency of the UPD70F3033AYGC-8EU-A?

The UPD70F3033AYGC-8EU-A operates at an internal 20 MHz clock frequency, delivering a minimum instruction execution time of 50 ns. It uses an external crystal (X1/X2) for main clock generation and supports subsystem clocking via XT1/XT2. The CPU does not support frequency multiplication beyond its rated 20 MHz operation.

Does the UPD70F3033AYGC-8EU-A support in-system programming of its flash memory?

Yes, the UPD70F3033AYGC-8EU-A supports full in-system programming and erasure of its 256 KB flash memory while mounted on the target board. Programming requires applying VPP (pin 76) to VSS during write/verify cycles and using Renesas' standard flash programming protocol via the on-chip serial interface or parallel bus mode.

Which I²C interfaces are available on the UPD70F3033AYGC-8EU-A?

The UPD70F3033AYGC-8EU-A provides two independent I²C interfaces: I²C0 (using pins P10/SI0/SDA0 and P12/SCK0/SCL0) and I²C1 (using pins P20/SI2/SDA1 and P22/SCK2/SCL1). These are exclusive to the -AY variant and are not present on the base -A version (e.g., UPD70F3033AGC-8EU).

What is the function of the RTPTRG pin on the UPD70F3033AYGC-8EU-A?

The RTPTRG pin (P06) serves as the external trigger input for the real-time output port (RTP). When asserted, it synchronizes the 8-bit RTP0–RTP7 output latch update, enabling precise waveform generation aligned to external events such as video sync pulses or IR carrier edges in AV applications.

How many analog input channels does the UPD70F3033AYGC-8EU-A support?

The UPD70F3033AYGC-8EU-A integrates a 10-bit successive-approximation A/D converter with 12 analog input channels (ANI0–ANI11), accessible via dedicated pins P70–P77 and P80–P83. It supports external triggering via ADTRG (P05) and uses AVREF as the reference voltage source.