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Renesas UPD78F1146AF1-AN1-A
- Part No.:
- UPD78F1146AF1-AN1-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-VFBGA
- Datasheet:
-
UPD78F1146AF1-AN1-A.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,673
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Product details
Overview
UPD78F1146AF1-AN1-A 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 12-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 UPD78F1146AF1-AN1-A datasheet, UPD78F1146AF1-AN1-A pinout, UPD78F1146AF1-AN1-A application, or UPD78F1146AF1-AN1-A equivalent, key selection considerations include its 100-pin LQFP package, Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade quality requirements per Renesas specification.
Technical Context
The UPD78F1146AF1-AN1-A implements the 78K0R CPU core with 16-bit architecture, supporting both 8- and 16-bit instructions and featuring a 3-stage pipeline for efficient execution. It integrates a programmable low-voltage detection circuit (LVD), watchdog timer (WDT), and power-on reset (POR) for robust system initialization and fault recovery.
Peripheral integration includes a 12-bit successive-approximation ADC with sample-and-hold, four independent 16-bit timer modules (each configurable as interval timer, reload timer, or event counter), and dual serial interface units supporting asynchronous UART and synchronous I²C modes - all accessible via dedicated SFRs and interrupt vectors mapped to the 78K0R interrupt controller.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 3-stage pipeline and 8/16-bit instruction set compatibility |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 10-year data retention at 85°C |
| RAM Size | 8 KB on-chip RAM with bit manipulation support and dual-bank configuration for real-time context switching |
| ADC Resolution | 12-bit SAR ADC with 16 input channels, ±1 LSB INL, and conversion time of 1.2 μs per sample |
| Operating Voltage | 2.7 V to 5.5 V supply range enabling direct interface with legacy 5 V logic and modern 3.3 V peripherals |
| Max Clock Frequency | 20 MHz internal high-speed oscillator (HOCO) or external crystal up to 20 MHz for deterministic timing control |
| Temperature Range | −40°C to +85°C industrial grade operation validated per Renesas Standard quality classification |
Pinout & Package
This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, optimized for surface-mount assembly and thermal dissipation in compact industrial control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | General-purpose pins with selectable pull-up resistors; P00–P03 support analog input for ADC channel selection |
| P10–P17 | Port 1 bidirectional I/O | Dedicated UART0 TX/RX (P10/P11), I²C SCL/SDA (P12/P13), and timer output capture inputs (P14–P17) |
| P20–P27 | Port 2 bidirectional I/O | 16-bit timer array outputs (TIA0–TIA7), PWM complementary outputs, and external interrupt sources (INTP0–INTP3) |
| AVREF | Analog reference voltage input | External reference for 12-bit ADC; supports 1.5 V to VDD range with internal buffer bypass option |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; accepts min. 100 ns pulse width for reliable system recovery |
| VDD / EVDD | Power supply pins | VDD powers digital core (2.7–5.5 V); EVDD powers analog peripherals and ADC separately to minimize noise coupling |
| FLMD0 | Flash mode select | Configures boot mode at power-on: high = normal operation; low = Flash programming mode via on-chip bootloader |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Self-programmable via on-chip bootloader using UART or I²C; no external programmer required for field firmware updates |
| Low-power operation modes | Four modes (HALT, STOP, SNOOZE, IDLE) with wake-up latency < 10 μs from HALT and current draw as low as 0.8 μA in STOP mode |
| ADC trigger synchronization | Hardware-triggered conversions synchronized to timer overflow or external event, eliminating software polling overhead |
| Peripheral function remapping | Flexible pin assignment via peripheral switch matrix: UART, I²C, and timer outputs can be routed to alternate port pins without PCB redesign |
| Real-time debug support | Fully compatible with QB-MINI2 on-chip debug emulator; supports breakpoints, watchpoints, and live register inspection during active execution |
Applications
| Industrial Sensor Node | Brushless DC Motor Control |
|---|---|
Use Scenario: Compact environmental monitoring unit collecting temperature, humidity, and pressure via analog sensors and transmitting data wirelessly. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, signal conditioning, data formatting, and low-power wireless transmission scheduling. Use Value: Integrated 12-bit ADC with hardware triggers and ultra-low-power STOP mode enable battery life >2 years on coin-cell power. | Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time motor phase timing generator using synchronized PWM outputs and back-EMF zero-crossing detection via ADC. Use Value: Dedicated timer array with complementary PWM outputs and dead-time insertion ensures precise gate drive timing and prevents shoot-through faults. |
| Programmable Logic Controller I/O Module | Smart Power Meter Interface |
Use Scenario: DIN-rail mounted I/O expansion module converting discrete 24 V DC inputs to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Isolated digital input conditioner, status aggregator, and protocol stack executor with deterministic UART timing. Use Value: Dual UART with automatic baud-rate detection and hardware flow control simplifies interoperability with legacy PLC backplanes. | Use Scenario: Energy meter front-end processing unit sampling voltage/current waveforms and calculating RMS, harmonics, and kWh. IC Role / Device Role / Timing Role: High-precision analog acquisition engine with simultaneous sampling and timestamping via hardware-triggered ADC sequences. Use Value: 12-bit ADC with 16-channel multiplexing and 1.2 μs conversion enables >16 kSPS aggregate sampling for Class 0.5 metering accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGSP | RL78/G13-based; 32 KB Flash, 4 KB RAM, lower max clock (24 MHz), integrated LIN transceiver | Better suited for automotive body electronics with LIN bus requirement; lacks 12-bit ADC resolution and analog reference flexibility | Select when LIN physical layer integration and lower BOM cost outweigh need for higher ADC precision and Flash capacity |
| MB95560P | Fujitsu FM3-based; 128 KB Flash, 16 KB RAM, 32-bit Cortex-M3 core, 12-bit ADC with 24 channels | Higher performance and memory headroom for complex control algorithms; requires different toolchain and larger PCB footprint | Choose when migrating to ARM ecosystem and requiring extended real-time OS support or multi-threaded firmware architecture |
Compared with R5F100LGSP and MB95560P, the UPD78F1146AF1-AN1-A delivers optimal balance of analog precision, Flash endurance, and industrial temperature stability within the mature 78K0R ecosystem - ideal for cost-sensitive, long-lifecycle embedded systems where toolchain continuity and qualification history are critical.
Availability
UPD78F1146AF1-AN1-A is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor controllers, and programmable logic controller I/O modules requiring stable component supply across multi-year production programs.
Supply support for UPD78F1146AF1-AN1-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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The 78K0R/KE3 product line was designed specifically for cost-effective, high-reliability embedded control in industrial automation and appliance applications - emphasizing Flash longevity, analog integration, and long-term supply assurance.
FAQ
What is the maximum operating frequency supported by the UPD78F1146AF1-AN1-A?
The UPD78F1146AF1-AN1-A supports a maximum operating frequency of 20 MHz, achievable either via its internal high-speed oscillator (HOCO) or an external crystal/resonator. This frequency is fully validated across the −40°C to +85°C industrial temperature range and ensures deterministic timing for real-time control loops and communication protocols such as UART and I²C.
Does the UPD78F1146AF1-AN1-A include on-chip debug capability?
Yes, the UPD78F1146AF1-AN1-A supports full on-chip debugging via the standard 5-pin FINE interface, compatible with Renesas QB-MINI2 and ID78K0R-QB debug tools. This enables real-time breakpoints, register inspection, memory read/write, and flash programming without requiring additional debug hardware or pin allocation on the target board.
What is the Flash memory endurance specification for the UPD78F1146AF1-AN1-A?
The UPD78F1146AF1-AN1-A specifies 100,000 write/erase cycles for its 128 KB on-chip Flash memory, with guaranteed 10-year data retention at +85°C ambient. This endurance rating is validated per Renesas' industrial quality standards and applies to both main program memory and data flash sectors used for parameter storage.
Can the UPD78F1146AF1-AN1-A operate from a 3.3 V supply?
Yes, the UPD78F1146AF1-AN1-A operates reliably across a supply voltage range of 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V systems. At 3.3 V, it maintains full functionality including 20 MHz operation, 12-bit ADC performance, and all peripheral interfaces - with no derating of timing or analog specifications.
Is the UPD78F1146AF1-AN1-A qualified for industrial temperature operation?
Yes, the UPD78F1146AF1-AN1-A is rated for industrial temperature operation from −40°C to +85°C and classified under Renesas' "Standard" quality grade, explicitly approved for use in industrial robots, machine tools, and factory automation equipment per documentation U17854EJ9V0UD.
UPD78F1146AF1-AN1-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-VFBGA
- Series:
- 78K0R/Kx3
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 50
- 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 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1146AF1-AN1-A FAQ
1.How can I place an order for UPD78F1146AF1-AN1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1146AF1-AN1-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 UPD78F1146AF1-AN1-A reliable?
The price and inventory of UPD78F1146AF1-AN1-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1146AF1-AN1-A is usually 5 days.
3.What payment methods are accepted for UPD78F1146AF1-AN1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1146AF1-AN1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1146AF1-AN1-A?
UPD78F1146AF1-AN1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1146AF1-AN1-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 UPD78F1146AF1-AN1-A?
For technical support, including UPD78F1146AF1-AN1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1146AF1-AN1-A requirements.
6.How does Aetrix verify that UPD78F1146AF1-AN1-A is sourced from the original manufacturer or authorized distributors?
All UPD78F1146AF1-AN1-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 UPD78F1146AF1-AN1-A meets industry standards.
7.What is the process for return or replacement of UPD78F1146AF1-AN1-A?
All UPD78F1146AF1-AN1-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1146AF1-AN1-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 UPD78F1146AF1-AN1-A part is unused and in its original packaging.
Return procedure for UPD78F1146AF1-AN1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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