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Renesas UPD70F3035BYGC-8EU-A
- Part No.:
- UPD70F3035BYGC-8EU-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
UPD70F3035BYGC-8EU-A.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,122
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Product details
Overview
UPD70F3035BYGC-8EU-A from Renesas Electronics is a 32-bit V850/SB1 single-chip microcontroller with 256 KB flash memory, 16 KB RAM, 10-bit 12-channel A/D converter, six DMA channels, and dual UART/CSI/I²C interfaces. It operates at up to 20 MHz (50 ns min instruction time) and targets AV equipment requiring real-time I/O control, serial communication, and analog signal acquisition.
For engineers reviewing the UPD70F3035BYGC-8EU-A datasheet, UPD70F3035BYGC-8EU-A pinout, UPD70F3035BYGC-8EU-A application, or UPD70F3035BYGC-8EU-A equivalent, this page delivers verified technical context, package mapping, functional pin roles, and validated alternative options for AV system design and migration paths from mask-ROM variants.
Technical Context
The UPD70F3035BYGC-8EU-A implements the V850/SB1 32-bit RISC CPU core with 32 general-purpose registers, signed multiplication, saturation arithmetic, and 32-bit barrel shifter. Its memory architecture supports 16 MB linear address space with external bus interface (A1–A21, AD0–AD15) and on-chip flash programmable in-system.
Peripheral integration includes two 16-bit timers (TM0/TM1), six 8-bit timers (TM2–TM7), watchdog and watch timers, real-time output port (RTP0–RTP7), key return inputs (KR0–KR7), and dual I²C interfaces (I²C0/I²C1) - all confirmed active in the -AY suffix variant per datasheet section 1 and internal block diagram.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850/SB1 32-bit RISC with 32 × 32-bit registers and 74-instruction set |
| Max Clock Speed | 20 MHz internal operation → 50 ns minimum instruction execution time |
| Flash Memory | 256 KB on-chip flash (supports in-circuit programming/erasing) |
| RAM | 16 KB on-chip SRAM for data and stack operations |
| A/D Converter | 10-bit resolution, 12 input channels (ANI0–ANI11), external trigger (ADTRG) |
| Serial Interfaces | 2× UART, 4× CSI, 1× variable-length CSI, 2× I²C (I²C0/I²C1) |
| Timers | 2× 16-bit (TM0/TM1), 6× 8-bit (TM2–TM7), 1× watch timer, 1× watchdog timer |
| I/O Pins | 83 total I/O lines including 8-bit RTP, 4-bit KR, and multiplexed address/data bus |
Pinout & Package
UPD70F3035BYGC-8EU-A uses a 100-pin plastic LQFP (fine pitch, 14 mm × 14 mm) package with 0.5 mm lead pitch. Pin functions are fully defined in Renesas datasheet U14734EJ3V0DS, sections 2.1–2.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 with INTP0–INTP6/NMI | 8-bit programmable I/O; dedicated interrupt inputs with noise filtering |
| P10–P15 | Port 1 with SI0/SO0/SCK0/SDA0/SCL0 | 6-bit I/O supporting UART0, I²C0, and CSI0 functions |
| P20–P27 | Port 2 with SI2/SO2/SCK2/SDA1/SCL1 | 8-bit I/O supporting UART1, I²C1, and CSI1–CSI3 functions |
| P30–P37 | Port 3 with TI00–TI11/TO0–TO5/SCK4 | 8-bit I/O for timer capture/compare, external clock inputs, and CSI4 |
| P40–P57 | Port 4/5 as AD0–AD15 | 16-bit multiplexed address/data bus for external memory expansion |
| P90–P96 | Port 9 with LBEN/UBEN/R/W/DSTB/ASTB | 7-bit bus control interface for external memory read/write strobes and handshaking |
| P100–P107 | Port 10 with RTP0–RTP7/KR0–KR7/A5–A12 | 8-bit real-time output port + key return inputs + lower address bits |
| P110–P113 | Port 11 with WAIT/A1–A4 | 4-bit I/O supporting wait-state insertion and address extension |
| VPP | Programming power supply | Connected to VSS in normal operation; required at 12.5 V for flash write/verify |
| AVDD/AVSS/AVREF | Analog power and reference | Independent 3.3 V analog supply domain for A/D converter accuracy and noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| In-system flash programmability | Enables firmware updates and rapid prototyping without ROM mask changes or device replacement |
| Dual I²C interfaces (I²C0/I²C1) | Supports concurrent communication with multiple sensors, EEPROMs, or audio codecs in AV systems |
| Real-time output port (RTP) | 8-bit synchronized output (RTP0–RTP7) for precise timing-critical signals like IR carrier generation |
| Key return (KR) inputs | 8 dedicated debounced inputs (KR0–KR7) for remote control keypad scanning without CPU polling |
| External bus interface | Full 21-bit address (A1–A21) and 16-bit data (AD0–AD15) support for external Flash, SDRAM, or ASIC co-processing |
| Power-saving modes | HALT/IDLE/STOP modes reduce current consumption during display blanking or standby states |
Applications
| Car Audio Head Unit | Home Theater Receiver |
|---|---|
Use Scenario: Real-time decoding of digital audio streams, IR remote command processing, and analog sensor monitoring for thermal management. IC Role / Device Role / Timing Role: Main system controller managing audio DSP interface, front-panel I/O, and power sequencing. Use Value: Integrated 12-channel A/D monitors heatsink temperature and supply rails; KR inputs decode NEC protocol IR signals with hardware assist. | Use Scenario: HDMI CEC control, multi-zone audio routing, and display driver coordination in multi-input AV receivers. IC Role / Device Role / Timing Role: System coordinator handling I²C-based CEC messaging, UART-linked display updates, and RTP-synchronized video sync pulses. Use Value: Dual I²C interfaces manage CEC and display EEPROM independently; RTP outputs generate precise 38 kHz IR carrier for zone control. |
| Digital Set-Top Box | Professional Audio Mixer |
Use Scenario: Conditional access module (CAM) interface, tuner control, and on-screen display (OSD) generation. IC Role / Device Role / Timing Role: Embedded controller interfacing with smart card readers, RF tuners, and graphic overlay engines. Use Value: External bus interface connects to CAM's parallel interface; 16-bit timer channels drive OSD raster timing and IR blaster modulation. | Use Scenario: Channel fader automation, rotary encoder tracking, and LED metering in analog/digital hybrid mixers. IC Role / Device Role / Timing Role: Peripheral manager acquiring potentiometer/encoder data, driving LED bar graphs, and communicating with DSP cores. Use Value: 12-channel A/D reads analog fader positions; KR inputs scan mechanical encoder switches; UART0 links to host PC for DAW control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UPD70F3033AYGC-8EU | Same V850/SB1 core, identical 256 KB flash, 16 KB RAM, and peripheral set; differs only in ROM code suffix and minor revision | No functional difference; used interchangeably in AV designs where ROM content matches | Select when legacy firmware binary compatibility with -33AY is required |
| UPD70F3032AYGC-8EU | 512 KB mask ROM (not flash), 24 KB RAM, same peripherals; lacks in-system programmability and VPP pin functionality | Suitable for mass production only; requires ROM mask change for firmware updates | Choose for cost-sensitive high-volume AV products with fixed firmware |
Compared with UPD70F3035BYGC-8EU-A, the -33AY offers identical flash-based flexibility and pinout, while the -32AY trades programmability for larger mask-ROM capacity and higher RAM-making it viable only where firmware immutability and cost outweigh field-upgrade needs.
Availability
UPD70F3035BYGC-8EU-A is available at Aetrix Electronics and suitable for car audio head units, home theater receivers, digital set-top boxes, and professional audio mixers requiring stable component supply across extended product lifecycles.
Supply support for UPD70F3035BYGC-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 was designed specifically for real-time embedded control in consumer AV equipment, emphasizing low-latency I/O, integrated analog interfaces, and flexible memory options for rapid development cycles.
FAQ
What is the maximum operating frequency of the UPD70F3035BYGC-8EU-A?
The UPD70F3035BYGC-8EU-A operates at a maximum internal clock frequency of 20 MHz, delivering a minimum instruction execution time of 50 ns. This timing is achieved using the internal oscillator or an external crystal (X1/X2) and is confirmed in the "Features" section of Renesas datasheet U14734EJ3V0DS. The CPU core maintains deterministic performance across HALT/IDLE/STOP power modes with appropriate clock gating.
Does the UPD70F3035BYGC-8EU-A support I²C communication?
Yes, the UPD70F3035BYGC-8EU-A supports two independent I²C interfaces (I²C0 and I²C1), accessible via pins SDA0/SCL0 (P10/P12) and SDA1/SCL1 (P20/P22). This capability is explicitly documented for the -AY suffix variants in the "Features" and internal block diagram of datasheet U14734EJ3V0DS. Both interfaces operate in standard and fast-mode configurations.
What is the function of the VPP pin on the UPD70F3035BYGC-8EU-A?
The VPP pin on the UPD70F3035BYGC-8EU-A is the programming voltage input required for flash memory write and verify operations. During normal operation, VPP must be connected to VSS (ground); during programming, it must be supplied with 12.5 V ± 0.5 V. This behavior is specified in datasheet U14734EJ3V0DS section 2.2 and distinguishes flash-based variants like UPD70F3035BYGC-8EU-A from mask-ROM counterparts.
How many analog input channels does the UPD70F3035BYGC-8EU-A have?
The UPD70F3035BYGC-8EU-A integrates a 10-bit A/D converter with 12 analog input channels (ANI0 through ANI11), mapped to pins P70–P77 and P80–P83. These channels support external triggering via ADTRG (P05) and share a common AVDD/AVSS power domain with dedicated AVREF for precision. This configuration is confirmed in the "Features" and "PIN IDENTIFICATION" sections of datasheet U14734EJ3V0DS.
Is the UPD70F3035BYGC-8EU-A pin-compatible with mask-ROM versions like UPD703033AYGC-8EU?
Yes, the UPD70F3035BYGC-8EU-A is pin-compatible with UPD703033AYGC-8EU and other 100-pin LQFP variants in the V850/SB1 family. All share identical pin count, physical layout, and signal assignment per the "PIN CONFIGURATION" diagrams in datasheet U14734EJ3V0DS. Functional differences (e.g., flash vs. mask ROM, VPP presence) do not affect mechanical or electrical pin compatibility.
UPD70F3035BYGC-8EU-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- V850/Sx1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- V850
- Core Size:
- 32-Bit Single-Core
- Speed:
- 20MHz
- Connectivity:
- CSI, EBI/EMI, UART/USART
- Peripherals:
- PWM
- Number of I/O:
- 83
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3035BYGC-8EU-A FAQ
1.How can I place an order for UPD70F3035BYGC-8EU-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3035BYGC-8EU-A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UPD70F3035BYGC-8EU-A reliable?
The price and inventory of UPD70F3035BYGC-8EU-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3035BYGC-8EU-A is usually 5 days.
3.What payment methods are accepted for UPD70F3035BYGC-8EU-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3035BYGC-8EU-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3035BYGC-8EU-A?
UPD70F3035BYGC-8EU-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3035BYGC-8EU-A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UPD70F3035BYGC-8EU-A?
For technical support, including UPD70F3035BYGC-8EU-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3035BYGC-8EU-A requirements.
6.How does Aetrix verify that UPD70F3035BYGC-8EU-A is sourced from the original manufacturer or authorized distributors?
All UPD70F3035BYGC-8EU-A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UPD70F3035BYGC-8EU-A meets industry standards.
7.What is the process for return or replacement of UPD70F3035BYGC-8EU-A?
All UPD70F3035BYGC-8EU-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3035BYGC-8EU-A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UPD70F3035BYGC-8EU-A part is unused and in its original packaging.
Return procedure for UPD70F3035BYGC-8EU-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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