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Renesas UPD78F1146AGB-GAH-M1-AX
- Part No.:
- UPD78F1146AGB-GAH-M1-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD78F1146AGB-GAH-M1-AX.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,870
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Product details
Overview
UPD78F1146AGB-GAH-M1-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 12-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range of 2.7 V to 5.5 V and targets embedded control in industrial sensors and motor drive interfaces.
For engineers reviewing the UPD78F1146AGB-GAH-M1-AX datasheet, UPD78F1146AGB-GAH-M1-AX pinout, UPD78F1146AGB-GAH-M1-AX application, or UPD78F1146AGB-GAH-M1-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), package type (LQFP-100), and peripheral compatibility with legacy 78K0R designs.
Technical Context
The UPD78F1146AGB-GAH-M1-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture supporting simultaneous instruction fetch and data access. It integrates a programmable low-voltage detector (LVD) with 4 selectable thresholds and a watchdog timer with independent clock source.
Peripheral subsystems include a 12-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing, plus dual UART modules supporting asynchronous communication with automatic baud rate detection and LIN bus framing support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 24-bit addressing and 1.15 DMIPS/MHz performance |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 20-year data retention |
| RAM Size | 8 KB on-chip RAM with wait-state-free access at max frequency |
| ADC Resolution | 12-bit SAR ADC with ±1 LSB INL, 16 input channels, and hardware scan mode |
| Operating Voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems |
| Max Clock Frequency | 20 MHz main clock with internal high-speed oscillator option (8 MHz ±2%) |
| Temperature Range | −40°C to +85°C - qualified for industrial-grade operation without derating |
Pinout & Package
LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad for enhanced heat dissipation in continuous industrial operation.
| 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, I²C SDA/SCL, and timer output capture |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs, ADC trigger signals, and PWM output with dead-time insertion |
| P20–P27 | Port 2 bidirectional I/O | Includes dedicated pins for serial interface (UART1, CSI), CAN transceiver control, and external bus expansion |
| AVREF/AVSS | Analog reference and ground | Separate analog power domain enables stable 12-bit ADC conversion under digital switching noise |
| RESET | Active-low reset input | Accepts external reset signal or internal LVD/WDT assertion; includes built-in pull-up resistor |
| VDD/EVDD, VSS/EVSS | Digital/analog power supply | Dual-supply separation reduces coupling noise between digital logic and analog peripherals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Self-programmable via on-chip bootloader using UART or dedicated FLMD0 pin - enables field firmware updates without external programmer |
| Low-power modes | Four operational modes (HALT, STOP, SNOOZE, IDLE) with wake-up latency < 1 µs from STOP mode using external interrupt or RTC alarm |
| Hardware CRC generator | Dedicated 16-bit CRC module compliant with CCITT-16 polynomial - accelerates firmware integrity checks and communication frame validation |
| Real-time clock (RTC) | Independent 32.768 kHz crystal oscillator input with calendar function (year/month/day/hour/min/sec) and alarm interrupt capability |
| Secure boot loader | ROM-resident boot code verifies Flash signature before execution - prevents unauthorized firmware loading |
Applications
| Industrial Sensor Node | Motor Drive Interface |
|---|---|
Use Scenario: Standalone environmental monitoring unit with temperature, humidity, and pressure sensing, transmitting data over RS-485. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, calibration compensation, protocol stack (Modbus RTU), and isolated serial communication. Use Value: Integrated 12-bit ADC with hardware averaging and UART with auto-baud detection eliminate external signal conditioning and timing-critical software baud calculation. | Use Scenario: Brushless DC motor control board for HVAC blower system with Hall-effect position feedback and current sensing. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithm, generating 3-phase PWM with synchronized ADC sampling and dead-time insertion. Use Value: Timer array with complementary PWM outputs and ADC trigger synchronization ensures sub-microsecond phase alignment critical for torque ripple reduction. |
| Programmable Logic Controller (PLC) I/O Module | Smart Power Metering Terminal |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel opto-isolated inputs and relay-driven outputs. IC Role / Device Role / Timing Role: Fieldbus interface processor (CANopen slave) handling cyclic process data exchange and diagnostics reporting. Use Value: On-chip CAN controller with message object buffers and error confinement logic reduces host MCU overhead and improves deterministic response to bus events. | Use Scenario: Residential electricity meter with tariff switching, tamper detection, and infrared/RF communication interface. IC Role / Device Role / Timing Role: Energy measurement co-processor interfacing with metrology IC (e.g., ADE7878) via SPI and managing secure time-stamped logging. Use Value: Hardware RTC with battery-backed calendar and CRC accelerator enable accurate billing interval tracking and firmware update signature verification without external components. |
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 core, 32 KB Flash, 4 KB RAM, lower power consumption but reduced peripheral integration (no hardware CRC, no SNOOZE mode) | Suitable for cost-sensitive, battery-powered endpoints where full 128 KB Flash and dual UART are unnecessary | Select when BOM cost and active power are prioritized over Flash capacity and advanced timing features |
| UPD78F1144AGB-GAH-M1-AX | Same 78K0R/KE3 family, 96 KB Flash, identical pinout and peripheral set except reduced Flash size and fewer ADC channels (12 vs. 16) | Drop-in replacement for designs requiring less program storage and simplified analog front-end | Choose for design reuse where existing PCB layout and firmware can accommodate smaller Flash and ADC channel count |
Compared with UPD78F1146AGB-GAH-M1-AX, R5F100LGSP offers lower active current but lacks hardware CRC and SNOOZE mode needed for secure firmware updates and ultra-low-latency wake-up; UPD78F1144AGB-GAH-M1-AX provides identical pin compatibility and peripheral functionality at reduced Flash density, enabling cost optimization without layout changes.
Availability
UPD78F1146AGB-GAH-M1-AX is available at Aetrix Electronics and suitable for industrial automation, motor control, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for UPD78F1146AGB-GAH-M1-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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The 78K0R/KE3 product line delivers high-integration 16-bit MCUs optimized for real-time control in resource-constrained industrial equipment, emphasizing peripheral richness, Flash reliability, and seamless migration from legacy 78K series.
FAQ
What is the maximum operating frequency of the UPD78F1146AGB-GAH-M1-AX?
The UPD78F1146AGB-GAH-M1-AX supports a maximum system clock frequency of 20 MHz when using the external crystal oscillator or the internal high-speed oscillator with PLL enabled. This frequency is fully supported across the entire −40°C to +85°C operating temperature range and 2.7 V to 5.5 V supply voltage range, ensuring deterministic real-time performance in industrial environments.
Does the UPD78F1146AGB-GAH-M1-AX include hardware debugging support?
Yes, the UPD78F1146AGB-GAH-M1-AX integrates full on-chip debug functionality compatible with Renesas' QB-MINI2 and ID78K0R-QB tools. It supports breakpoints, watchpoints, register inspection, and flash programming via the single-wire debug interface (SWD), enabling non-intrusive development and field firmware updates without requiring additional debug headers or pins.
What is the Flash memory endurance specification for the UPD78F1146AGB-GAH-M1-AX?
The UPD78F1146AGB-GAH-M1-AX guarantees 100,000 write/erase cycles per Flash block and 20 years of data retention at +85°C. This endurance rating applies to the full 128 KB on-chip Flash memory and is validated per JEDEC JESD22-A117 standard, making it suitable for applications requiring frequent field firmware updates or parameter logging.
Can the UPD78F1146AGB-GAH-M1-AX operate from a 3.3 V supply only?
Yes, the UPD78F1146AGB-GAH-M1-AX operates reliably across 2.7 V to 5.5 V, including nominal 3.3 V systems. At 3.3 V, it maintains full functionality - all peripherals, Flash programming, and 20 MHz operation - with no performance derating. The device's dual VDD/EVDD supply structure allows clean separation of digital and analog domains even under mixed-voltage board designs.
Is the UPD78F1146AGB-GAH-M1-AX pin-compatible with other members of the 78K0R/KE3 family?
Yes, the UPD78F1146AGB-GAH-M1-AX shares identical LQFP-100 pinout with UPD78F1142AGB-GAH-M1-AX, UPD78F1143AGB-GAH-M1-AX, UPD78F1144AGB-GAH-M1-AX, and UPD78F1145AGB-GAH-M1-AX. This enables direct PCB-level substitution within the same package variant, provided firmware accommodates differences in Flash size, RAM, and peripheral channel count.
UPD78F1146AGB-GAH-M1-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- 78K0R/Kx3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- 78K/0R
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, EBI/EMI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 55
- 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:
UPD78F1146AGB-GAH-M1-AX FAQ
1.How can I place an order for UPD78F1146AGB-GAH-M1-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1146AGB-GAH-M1-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 UPD78F1146AGB-GAH-M1-AX reliable?
The price and inventory of UPD78F1146AGB-GAH-M1-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1146AGB-GAH-M1-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1146AGB-GAH-M1-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1146AGB-GAH-M1-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1146AGB-GAH-M1-AX?
UPD78F1146AGB-GAH-M1-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1146AGB-GAH-M1-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 UPD78F1146AGB-GAH-M1-AX?
For technical support, including UPD78F1146AGB-GAH-M1-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1146AGB-GAH-M1-AX requirements.
6.How does Aetrix verify that UPD78F1146AGB-GAH-M1-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1146AGB-GAH-M1-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 UPD78F1146AGB-GAH-M1-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1146AGB-GAH-M1-AX?
All UPD78F1146AGB-GAH-M1-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1146AGB-GAH-M1-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 UPD78F1146AGB-GAH-M1-AX part is unused and in its original packaging.
Return procedure for UPD78F1146AGB-GAH-M1-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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