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Renesas UPD78F1166AGC-UEU-AX
- Part No.:
- UPD78F1166AGC-UEU-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
UPD78F1166AGC-UEU-AX.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
UPD78F1166AGC-UEU-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KE3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 10-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial sensors and motor drive interfaces.
For engineers reviewing the UPD78F1166AGC-UEU-AX datasheet, UPD78F1166AGC-UEU-AX pinout, UPD78F1166AGC-UEU-AX application, or UPD78F1166AGC-UEU-AX equivalent, key selection considerations include its 100-pin LQFP package, Flash endurance (100k write/erase cycles), ROMless boot mode support, and compliance with industrial-grade temperature range (−40°C to +85°C).
Technical Context
The UPD78F1166AGC-UEU-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory organization, and instruction set compatible with earlier 78K0 series. It integrates a 32-bit programmable watchdog timer, low-voltage detection circuit (LVD) with 4 selectable thresholds, and on-chip debug interface supporting real-time trace via QB-MINI2 emulator.
Its peripheral set includes two 16-bit timer arrays (each with 32-bit capture/compare capability), a 10-bit ADC with sample-and-hold and hardware-triggered conversion, and dual serial interface units supporting UART, clock-synchronous serial, and I²C modes - all configurable without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 3-stage pipeline and 1.25 MIPS/MHz performance |
| Flash Memory | 128 KB on-chip Flash with 100k erase/write cycles and 10-year data retention at 85°C |
| RAM Size | 8 KB on-chip SRAM, accessible in single-cycle read/write for real-time control loops |
| ADC Resolution | 10-bit successive approximation ADC with 16 input channels and ≤1.5 μs conversion time |
| Operating Voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems |
| Temperature Range | −40°C to +85°C industrial grade - validated for use in factory automation and HVAC controllers |
| Max Clock Frequency | 20 MHz internal high-speed oscillator or external crystal up to 20 MHz - enables deterministic timing for PWM generation |
Pinout & Package
This device uses a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas User's Manual U17854EJ9V0UD, Chapter 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX, timer output, and ADC trigger |
| P10–P17 | Port 1 bidirectional I/O | Supports I²C SDA/SCL, serial clock input, and external interrupt inputs with noise filter |
| P20–P27 | Port 2 bidirectional I/O | Includes dedicated pins for 10-bit ADC analog inputs (AN0–AN7) and reference voltage connections |
| P40–P43 | Port 4 bidirectional I/O | Provides secondary UART1 TX/RX and timer array channel outputs for motor phase control |
| RESET | Active-low reset input | Accepts external reset signal or internal LVD/WDT assertion; includes built-in pull-up resistor |
| VDD / VSS | Power supply / ground | Dual power domains: VDD/EVDD (core & I/O) and AVDD/AVSS (analog section) for noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Self-programmable via on-chip bootloader - enables field firmware updates without external programmer |
| Low-power operation | HALT and STOP modes with wake-up latency < 10 μs from external interrupt or timer event |
| Analog integration | Dedicated AVREF/AVSS pins and internal voltage regulator for ADC - eliminates need for external precision reference |
| Debug support | On-chip debug interface compliant with Renesas QB-MINI2 - supports breakpoints, watchpoints, and real-time variable monitoring |
| Functional safety readiness | Built-in parity checking for RAM and Flash, LVD with hysteresis, and WDT with windowed mode - supports IEC 61508 SIL2 system-level design |
Applications
| Industrial Sensor Node | Brushless DC Motor Controller |
|---|---|
Use Scenario: Compact environmental sensor unit measuring temperature, humidity, and CO₂ in smart building HVAC ducts. IC Role / Device Role / Timing Role: Central controller managing sensor polling, data preprocessing, RS-485 communication, and local alarm triggering. Use Value: Integrated 16-channel ADC and UART reduce BOM count by 3 discrete ICs; 128 KB Flash accommodates OTA update stack and calibration tables. | Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in industrial pumps and fans. IC Role / Device Role / Timing Role: Real-time motor timing engine generating six PWM outputs with dead-time insertion and current-sense ADC synchronization. Use Value: Dual 16-bit timer arrays provide independent PWM generation and encoder counting; 20 MHz clock ensures ±125 ns PWM edge resolution. |
| Programmable Logic Relay | Energy Meter Interface Module |
Use Scenario: DIN-rail mounted relay module replacing electromechanical timers with configurable digital logic and delay sequencing. IC Role / Device Role / Timing Role: Deterministic state-machine executor with precise timing intervals, GPIO expansion, and nonvolatile configuration storage. Use Value: 100k Flash endurance allows >10 years of daily reprogramming; HALT mode draws <1.5 μA enabling battery backup operation. | Use Scenario: Communication bridge between utility-grade polyphase energy meter ICs and wireless M-Bus or LoRaWAN transceivers. IC Role / Device Role / Timing Role: Protocol translator and data aggregator handling SPI-based meter reads, CRC validation, and packetized radio transmission scheduling. Use Value: Dual serial interfaces (UART + I²C) enable concurrent meter IC and transceiver communication; 8 KB RAM buffers full billing cycle data before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 core, 64 KB Flash, 4 KB RAM, lower max clock (24 MHz), no dedicated ADC sample-and-hold | Suitable for cost-sensitive consumer appliances but lacks industrial ADC accuracy and Flash endurance | Select when BOM cost is primary constraint and ADC channel count < 8 suffices |
| MB95F622KPMC-GSE1 | Fujitsu FM3 core, 128 KB Flash, 16 KB RAM, 32-bit architecture, higher power consumption | Targeted at automotive body control modules requiring AEC-Q100 Grade 2 qualification | Select only if AEC-Q100 compliance and CAN interface are mandatory |
Compared with R5F100LEAFB#30 and MB95F622KPMC-GSE1, the UPD78F1166AGC-UEU-AX delivers optimal balance of industrial ADC performance, Flash reliability, and LQFP footprint - making it preferred for factory-floor equipment where long-term calibration stability and field firmware updates are critical.
Availability
UPD78F1166AGC-UEU-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, programmable logic relays, and energy meter interface modules requiring stable component supply across multi-year production cycles.
Supply support for UPD78F1166AGC-UEU-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 global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The UPD78F1166AGC-UEU-AX belongs to the 78K0R/KE3 product line, designed specifically for cost-effective, high-reliability embedded control in industrial automation equipment where Flash endurance, analog integration, and debug accessibility are essential.
FAQ
What is the maximum operating frequency of the UPD78F1166AGC-UEU-AX?
The UPD78F1166AGC-UEU-AX supports a maximum system clock frequency of 20 MHz, achievable either via its internal high-speed oscillator or an external crystal/resonator. This frequency enables precise 50 ns instruction cycle timing for real-time control tasks such as motor commutation and sensor sampling. The UPD78F1166AGC-UEU-AX maintains full functionality across its specified voltage range (2.7–5.5 V) at this speed.
Does the UPD78F1166AGC-UEU-AX include on-chip debug capability?
Yes, the UPD78F1166AGC-UEU-AX integrates a full-featured on-chip debug interface compliant with Renesas QB-MINI2 and ID78K0R-QB tools. It supports real-time execution control, register and memory inspection, and hardware breakpoints without requiring external debug probes. This capability is enabled by default and requires no additional Flash space allocation in the UPD78F1166AGC-UEU-AX.
What ADC features does the UPD78F1166AGC-UEU-AX support?
The UPD78F1166AGC-UEU-AX includes a 10-bit successive approximation ADC with 16 input channels, sample-and-hold circuitry, and hardware-triggered conversion using timer or external event sources. Its differential input mode and built-in offset calibration reduce measurement error to ±1 LSB over temperature. These ADC capabilities are fully documented in the UPD78F1166AGC-UEU-AX User's Manual U17854EJ9V0UD.
Is the UPD78F1166AGC-UEU-AX qualified for industrial temperature operation?
Yes, the UPD78F1166AGC-UEU-AX is rated for industrial temperature operation from −40°C to +85°C and classified as "Standard" quality grade per Renesas documentation. It undergoes extended burn-in and screening to ensure reliability in factory automation, HVAC, and power conversion equipment. This rating applies specifically to the UPD78F1166AGC-UEU-AX in its 100-pin LQFP package.
Can the UPD78F1166AGC-UEU-AX execute code from RAM?
No, the UPD78F1166AGC-UEU-AX executes code exclusively from on-chip Flash memory or external ROM via its external bus interface - it does not support XIP (execute-in-place) from internal RAM. However, the UPD78F1166AGC-UEU-AX allows RAM-resident data tables and interrupt service routines to be copied and executed from RAM using software-managed relocation, as described in the 78K0R instructions manual.
UPD78F1166AGC-UEU-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- 78K0R/Kx3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0R
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 16x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1166AGC-UEU-AX FAQ
1.How can I place an order for UPD78F1166AGC-UEU-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1166AGC-UEU-AX 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 UPD78F1166AGC-UEU-AX reliable?
The price and inventory of UPD78F1166AGC-UEU-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1166AGC-UEU-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1166AGC-UEU-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1166AGC-UEU-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1166AGC-UEU-AX?
UPD78F1166AGC-UEU-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1166AGC-UEU-AX 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 UPD78F1166AGC-UEU-AX?
For technical support, including UPD78F1166AGC-UEU-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1166AGC-UEU-AX requirements.
6.How does Aetrix verify that UPD78F1166AGC-UEU-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1166AGC-UEU-AX 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 UPD78F1166AGC-UEU-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1166AGC-UEU-AX?
All UPD78F1166AGC-UEU-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1166AGC-UEU-AX, 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 UPD78F1166AGC-UEU-AX part is unused and in its original packaging.
Return procedure for UPD78F1166AGC-UEU-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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