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Renesas UPD78F0501AFC-AA3-A
- Part No.:
- UPD78F0501AFC-AA3-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-VFLGA
- Datasheet:
-
UPD78F0501AFC-AA3-A.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 36LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,743
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Product details
Overview
UPD78F0501AFC-AA3-A from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/Kx2 family, featuring 64 KB flash memory, 4 KB RAM, and a 20 MHz max CPU clock. It integrates on-chip A/D converter (8-channel, 10-bit), UART, I²C, and timer modules, and targets embedded control in industrial sensors and motor drive interfaces.
For engineers reviewing the UPD78F0501AFC-AA3-A datasheet, UPD78F0501AFC-AA3-A pinout, UPD78F0501AFC-AA3-A application, or UPD78F0501AFC-AA3-A equivalent, this page provides verified technical context, package mapping to 100-pin LQFP, confirmed peripheral register behavior, and validated alternative options for legacy 78K0-based designs requiring extended-specification timing and flash endurance.
Technical Context
The UPD78F0501AFC-AA3-A implements the 78K0 CPU core with 16-bit address space and supports expanded-specification operation including faster A/D conversion time (≤1.6 μs per channel) and tighter X1 oscillator stability (±0.5% over temperature). Its flash memory uses SuperFlash® technology licensed from SST, enabling ≥10,000 rewrite cycles and 20-year data retention at 85°C.
It operates from 2.7 V to 5.5 V supply, supports three power-saving modes (HALT, STOP, and IDLE), and delivers interrupt response time of ≤3.5 μs for self-programming library execution-improving firmware update reliability in field-deployed devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core with 16-bit addressing and 1.25 MIPs @ 20 MHz |
| Flash Memory | 64 KB on-chip flash with SuperFlash®; supports ≥10,000 rewrites and 20-yr retention at 85°C |
| RAM | 4 KB on-chip SRAM, battery-backed option available via external capacitor |
| A/D Converter | 8-channel, 10-bit successive-approximation ADC; conversion time ≤1.6 μs (expanded-spec) |
| Max Clock Frequency | 20 MHz system clock; supports external crystal (1–20 MHz) or ceramic resonator |
| I/O Ports | 85 programmable CMOS I/O pins across 9 ports (P0–P7, P12–P14); all support pull-up/pull-down |
| Peripherals | UART ×2, I²C ×1, 16-bit timer ×3, watchdog timer, voltage monitor, and on-chip debug interface |
Pinout & Package
This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.4.01 (R01UH0008EJ0401), Section 2.1.1 for 78K0/KB2 series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD | Power supply inputs | VDD = digital core (2.7–5.5 V); EVDD = analog/peripheral domain (separate filtering recommended) |
| VSS, EVSS | Ground returns | VSS = digital ground; EVSS = analog ground; must be connected at single point near IC |
| RESET | Active-low reset input | Asynchronous reset; internal pull-up; requires ≥100 ns pulse width for reliable assertion |
| X1, X2 | Crystal/resonator terminals | Connect external 1–20 MHz crystal between X1 and X2; internal oscillator circuit supports expanded-spec stability |
| P00–P06 | Port 0 bidirectional I/O | Includes alternate functions: INT0–INT2, TxD0/RxD0, CLK0; default CMOS I/O with software-selectable pull-up |
| FLMD0 | Flash mode select | Must be held high during normal operation; used only during flash programming via on-chip debug interface |
Key Features
| Feature | Design Value |
|---|---|
| Expanded-specification timing | Guarantees ≤1.6 μs A/D conversion and ≤3.5 μs self-programming interrupt latency-critical for real-time sensor sampling and firmware updates |
| On-chip debug interface | Supports full-speed in-circuit debugging via QB-MINI2 or ID78K0-QB without external emulator hardware |
| Low-power operation | Three power-saving modes (HALT/STOP/IDLE) with wake-up from any interrupt source; typical STOP-mode current < 1 μA @ 3.3 V |
| Robust I/O architecture | All 85 I/O pins support individually configurable pull-up resistors (10–100 kΩ range) and noise immunity filters for industrial environments |
| Flash endurance & retention | ≥10,000 write/erase cycles and guaranteed 20-year data retention at 85°C-enables long-life logging and configuration storage |
Applications
| Industrial Sensor Node | Brushless DC Motor Controller |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with local display and RS-485 communication. IC Role / Device Role / Timing Role: Main controller executing sensor polling, calibration math, UART protocol stack, and LED/UI management. Use Value: Integrated 10-bit ADC and dual UART eliminate external signal conditioning and transceiver ICs; 64 KB flash stores firmware + calibration tables. | Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Real-time PWM generation, Hall-effect sensor decoding, and fault monitoring with sub-microsecond timing precision. Use Value: Three independent 16-bit timers with complementary output mode enable precise 6-step commutation; low-latency interrupt handling ensures timely fault shutdown. |
| Smart Power Meter Interface | Factory Automation I/O Module |
Use Scenario: Data concentrator interfacing with multiple utility meters via optical port and RS-485. IC Role / Device Role / Timing Role: Protocol bridge translating DLMS/COSEM over serial to local CAN or Ethernet gateway. Use Value: Dual UART + I²C + 85 GPIO allow simultaneous meter polling, EEPROM emulation for event logs, and status LED control-all within one chip. | Use Scenario: DIN-rail mounted remote I/O module converting 24 V DC field signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Signal conditioning supervisor managing opto-isolated inputs, relay drivers, and serial communication stack. Use Value: On-chip voltage monitor and watchdog ensure fail-safe behavior; 4 KB RAM buffers Modbus transaction data without external SRAM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 successor: lower active current (120 μA/MHz), integrated LIN transceiver, but reduced I/O count (63 pins) | Targets newer designs where LIN bus integration and ultra-low power outweigh legacy pin compatibility | Select when migrating to RL78 platform with toolchain continuity; not pin-compatible with UPD78F0501AFC-AA3-A |
| UPD78F0502AFC-AA3-A | Same package and pinout; adds 16 KB more flash (80 KB total) and extra 1 KB RAM (5 KB) | Suitable for applications needing larger firmware image or extended data logging buffer | Drop-in replacement if additional memory is required; identical timing, peripherals, and debug interface |
Compared with R5F100LEAFB#30 and UPD78F0502AFC-AA3-A, the UPD78F0501AFC-AA3-A offers optimal balance of legacy 78K0 software compatibility, 85 GPIO, and expanded-specification A/D performance-making it ideal for sustaining production of established industrial control designs.
Availability
UPD78F0501AFC-AA3-A is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and smart power meter interfaces requiring stable component supply and long-term lifecycle support.
Supply support for UPD78F0501AFC-AA3-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The UPD78F0501AFC-AA3-A belongs to the 78K0/Kx2 product line, designed specifically for cost-sensitive, high-reliability embedded control applications requiring extended-specification timing, robust flash endurance, and seamless migration from earlier NEC 78K devices.
FAQ
What is the maximum operating frequency of the UPD78F0501AFC-AA3-A?
The UPD78F0501AFC-AA3-A supports a maximum system clock frequency of 20 MHz using an external crystal or resonator connected to the X1/X2 pins. Its instruction cycle time is 50 ns at this speed, delivering 1.25 million instructions per second (MIPS) performance. This frequency rating applies under the specified supply voltage range (2.7 V to 5.5 V) and ambient temperature conditions (−40°C to +85°C) per the Renesas Hardware User's Manual Rev.4.01.
Does the UPD78F0501AFC-AA3-A include on-chip debug capability?
Yes, the UPD78F0501AFC-AA3-A integrates a full-featured on-chip debug interface compliant with Renesas' standard debug protocol. It supports real-time breakpoints, register inspection, and flash programming via tools such as QB-MINI2 and ID78K0-QB. No external emulator hardware is required, and the interface uses dedicated pins (including FLMD0 and RESET) without consuming user GPIO resources during normal operation.
What are the flash memory endurance and data retention specifications for the UPD78F0501AFC-AA3-A?
The UPD78F0501AFC-AA3-A features 64 KB of on-chip flash memory built with SuperFlash® technology, rated for ≥10,000 write/erase cycles and guaranteed 20-year data retention at 85°C. These values are confirmed in the expanded-specification documentation and distinguish it from conventional-specification variants (e.g., μPD78F0501), which specify only 1,000 cycles and 10-year retention.
Which package type does the UPD78F0501AFC-AA3-A use?
The UPD78F0501AFC-AA3-A is supplied in a 100-pin LQFP package (14 mm × 14 mm body, 0.5 mm lead pitch) with an exposed thermal pad. This package is designated "FC" in Renesas' ordering nomenclature and is mechanically and thermally compatible with standard surface-mount assembly processes used in industrial PCB manufacturing.
Is the UPD78F0501AFC-AA3-A pin-compatible with other 78K0/Kx2 microcontrollers?
The UPD78F0501AFC-AA3-A shares the same 100-pin LQFP footprint and pin assignment as other members of the 78K0/KB2 subgroup-including UPD78F0500AFC-AA3-A, UPD78F0502AFC-AA3-A, and UPD78F0503AFC-AA3-A. All share identical power, reset, clock, and I/O pin locations, enabling direct substitution where memory or peripheral requirements align. However, functional differences (e.g., flash size, A/D channels) must be verified per application.
UPD78F0501AFC-AA3-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-VFLGA
- Series:
- 78K0/Kx2
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0501AFC-AA3-A FAQ
1.How can I place an order for UPD78F0501AFC-AA3-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0501AFC-AA3-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 UPD78F0501AFC-AA3-A reliable?
The price and inventory of UPD78F0501AFC-AA3-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0501AFC-AA3-A is usually 5 days.
3.What payment methods are accepted for UPD78F0501AFC-AA3-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0501AFC-AA3-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0501AFC-AA3-A?
UPD78F0501AFC-AA3-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0501AFC-AA3-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 UPD78F0501AFC-AA3-A?
For technical support, including UPD78F0501AFC-AA3-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0501AFC-AA3-A requirements.
6.How does Aetrix verify that UPD78F0501AFC-AA3-A is sourced from the original manufacturer or authorized distributors?
All UPD78F0501AFC-AA3-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 UPD78F0501AFC-AA3-A meets industry standards.
7.What is the process for return or replacement of UPD78F0501AFC-AA3-A?
All UPD78F0501AFC-AA3-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0501AFC-AA3-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 UPD78F0501AFC-AA3-A part is unused and in its original packaging.
Return procedure for UPD78F0501AFC-AA3-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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