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Renesas UPD78F1145AGK(R)-GAJ-AX
- Part No.:
- UPD78F1145AGK(R)-GAJ-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD78F1145AGK(R)-GAJ-AX.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,327
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Product details
Overview
UPD78F1145AGK(R)-GAJ-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 HMI, motor drive interfaces, and sensor-based automation systems.
For engineers reviewing the UPD78F1145AGK(R)-GAJ-AX datasheet, UPD78F1145AGK(R)-GAJ-AX pinout, UPD78F1145AGK(R)-GAJ-AX application, or UPD78F1145AGK(R)-GAJ-AX equivalent, key selection criteria include its 100-pin LQFP package, Flash endurance (100k write/erase cycles), built-in voltage regulator (REGC pin), and support for on-chip debug via QB-MINI2 - all critical for cost-sensitive, long-lifecycle industrial firmware deployments.
Technical Context
The UPD78F1145AGK(R)-GAJ-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture separating program and data memory. It integrates a programmable 8-bit/16-bit timer array (TM00–TM03), watchdog timer (WDT), and power-on reset (POR) circuit with adjustable delay.
Peripheral configuration includes dual UART channels supporting asynchronous communication at up to 2 Mbps, I²C interface compliant with SMBus v2.0, and a 10-bit successive-approximation ADC with sample-and-hold and scan mode across 16 input channels - all mapped to dedicated port pins with configurable pull-up/pull-down and digital filter options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 24-bit addressing, supporting 1.25 MIPS/MHz at 20 MHz |
| Flash Memory | 128 KB on-chip Flash with 100k write/erase cycles; supports in-application programming (IAP) |
| RAM | 8 KB on-chip SRAM with retention during STOP mode |
| ADC | 10-bit SAR ADC, 16-channel multiplexed input, 1.2 μs conversion time, internal reference (1.45 V) |
| Timers | Four 16-bit timer arrays (TM00–TM03), each configurable as interval timer, PWM, or input capture |
| Communication | Dual UART (full-duplex, 2 Mbps max), I²C (100/400 kbps), no CAN or USB |
| Supply Voltage | 2.7 V to 5.5 V operation; REGC pin enables internal 3.3 V regulator for core logic |
| Operating Temp | −40°C to +85°C (Industrial grade, Standard quality classification) |
Pinout & Package
UPD78F1145AGK(R)-GAJ-AX 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 User's Manual U17854EJ9V0UD, Chapter 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | General-purpose I/O with selectable pull-up; P00–P03 also serve as UART0 TX/RX and I²C SCL/SDA |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP0–INTP7); P10–P13 used for ADC channel selection |
| P20–P27 | Port 2 bidirectional I/O | Timer output (TO0–TO3), PWM outputs, and external clock inputs for TM00–TM03 |
| AVREF | Analog reference voltage input | Accepts external 1.45–5.5 V reference for ADC; internal 1.45 V reference available when left open |
| REGC | Voltage regulator control | Connects to external capacitor (1.0 μF) to stabilize internal 3.3 V regulator for core logic |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or POR/WDT assertion |
| VDD/EVDD | Power supply pins | VDD = core logic (3.3 V regulated), EVDD = I/O and analog (2.7–5.5 V) |
| VSS/EVSS | GND pins | VSS = core ground, EVSS = I/O and analog ground; separate planes recommended for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with IAP | Enables field firmware updates without external programmer; supports sector erase and byte-write |
| Dual UART with FIFO | Each UART includes 8-byte TX/RX FIFO and automatic baud-rate detection for robust serial communication |
| 16-channel 10-bit ADC | Simultaneous sampling not supported, but scan mode allows sequential conversion of up to 16 channels with DMA trigger capability |
| Low-power STOP mode | Current draw ≤ 2.5 μA at 3.3 V; wake-up via external interrupt, RTC alarm, or UART activity |
| Hardware multiplier/divider | 16×16-bit multiply and 32÷16-bit divide executed in single cycle - accelerates PID and filtering algorithms |
| On-chip debug interface | Single-wire debug (SWD) compatible with QB-MINI2 emulator; supports full breakpoint, watchpoint, and real-time register access |
Applications
| Industrial HMI Panels | Brushless DC Motor Control |
|---|---|
Use Scenario: Standalone operator interface with touch overlay, LED indicators, and local button inputs in factory-floor equipment. IC Role / Device Role / Timing Role: Main system controller managing display refresh, input scanning, status reporting, and serial command forwarding to PLC. Use Value: Integrated 16-channel ADC reads analog potentiometers and sensor feedback; dual UART handles Modbus RTU comms and debug logging simultaneously. | Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time motor controller executing FOC or trapezoidal commutation using timer-generated PWM and ADC-sampled phase currents. Use Value: Four independent 16-bit timer arrays generate synchronized 3-phase PWM with dead-time insertion; 10-bit ADC samples current sense resistors at ≤1.2 μs per channel. |
| Smart Sensor Nodes | Programmable Power Supplies |
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and CO₂ readings for wireless transmission. IC Role / Device Role / Timing Role: Low-power data acquisition hub with sleep/wake scheduling, sensor interfacing, and protocol translation (I²C to UART). Use Value: STOP mode draws <2.5 μA; internal 1.45 V ADC reference ensures stable measurement accuracy across battery discharge curve. | Use Scenario: Bench-style lab power supply with programmable voltage/current limits, front-panel controls, and PC connectivity. IC Role / Device Role / Timing Role: System manager handling DAC control, safety monitoring (overvoltage/overcurrent), user interface, and USB-to-UART bridge management. Use Value: Dual UART supports simultaneous host PC commands (via USB-UART) and isolated auxiliary comms; hardware multiplier speeds up digital PID loop calculations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLGSP#30 | RL78/G13 core; 128 KB Flash, 12 KB RAM; lower active current (125 μA/MHz), no hardware divider | Better suited for ultra-low-power battery applications; lacks REGC pin and internal 3.3 V regulator | Select if energy efficiency > computational throughput; verify external regulator design for core supply |
| MB95560PMT-G-SNE1 | Fujitsu FM3 core; 128 KB Flash, 16 KB RAM; includes CAN 2.0B controller and higher ADC resolution (12-bit) | Required where CAN bus integration is mandatory; larger footprint (128-pin LQFP) and higher BOM cost | Choose only when CAN interface is essential; otherwise, UPD78F1145AGK(R)-GAJ-AX offers better cost/performance for UART/I²C-only systems |
Compared with R5F100PLGSP#30 and MB95560PMT-G-SNE1, the UPD78F1145AGK(R)-GAJ-AX delivers balanced performance for industrial control with integrated voltage regulation, proven toolchain support (RA78K0R/CC78K0R), and mature qualification for Standard-grade applications - making it optimal for non-safety-critical, cost-sensitive designs requiring reliable Flash endurance and debug accessibility.
Availability
UPD78F1145AGK(R)-GAJ-AX is available at Aetrix Electronics and suitable for industrial HMI panels, BLDC motor controllers, smart sensor nodes, and programmable power supplies requiring stable component supply and long-term manufacturing continuity.
Supply support for UPD78F1145AGK(R)-GAJ-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The UPD78F1145AGK(R)-GAJ-AX belongs to the 78K0R/KE3 product line - designed specifically for cost-optimized, high-reliability embedded control in industrial equipment where Flash endurance, debug accessibility, and mixed-signal integration are prioritized over ultra-low power or automotive ASIL compliance.
FAQ
What is the maximum operating frequency and corresponding instruction throughput of the UPD78F1145AGK(R)-GAJ-AX?
The UPD78F1145AGK(R)-GAJ-AX operates at a maximum CPU clock frequency of 20 MHz. Its 78K0R core achieves 1.25 MIPS per MHz, delivering up to 25 MIPS total throughput. This is confirmed in Renesas User's Manual U17854EJ9V0UD Section 3.1 and electrical specifications table, where AC characteristics specify tCY = 50 ns (20 MHz) with no wait states for on-chip Flash execution.
Does the UPD78F1145AGK(R)-GAJ-AX support in-system programming (ISP) or in-application programming (IAP)?
Yes, the UPD78F1145AGK(R)-GAJ-AX supports in-application programming (IAP) via its on-chip Flash memory. Using the built-in Flash self-programming library (Type01), firmware can reprogram designated Flash sectors while the device remains operational. This capability is documented in Renesas Application Note U18706E and requires proper initialization of the Flash control registers and voltage monitoring per Section 12.3 of the UPD78F1145AGK(R)-GAJ-AX datasheet.
What is the function of the REGC pin on the UPD78F1145AGK(R)-GAJ-AX, and what external component is required?
REGC is the voltage regulator capacitor pin for the internal 3.3 V core regulator. A 1.0 μF ceramic capacitor must be connected between REGC and EVSS to stabilize the regulator output. This is mandatory for proper core operation - omitting it causes undefined behavior or failure to boot. The requirement is specified in Renesas User's Manual U17854EJ9V0UD Section 2.2.15 and electrical characteristics table under "REGC Capacitor".
How many ADC channels does the UPD78F1145AGK(R)-GAJ-AX support, and what is the conversion time?
The UPD78F1145AGK(R)-GAJ-AX supports 16 analog input channels for its 10-bit successive-approximation ADC. Conversion time is 1.2 μs per channel under typical conditions (VDD = 5.0 V, fCLK = 20 MHz), as stated in the "Electrical Characteristics" section of the datasheet. Channel scanning is supported in software or via timer-triggered mode, but simultaneous sampling is not implemented.
Is the UPD78F1145AGK(R)-GAJ-AX qualified for automotive applications?
No, the UPD78F1145AGK(R)-GAJ-AX is classified as a Standard quality grade device per Renesas documentation (Document No. C11531E), intended for industrial, office, and consumer applications - not automotive. It lacks AEC-Q100 qualification, extended temperature range (−40°C to +125°C), or fault-tolerant features required for automotive use. For automotive alternatives, Renesas recommends the RL78/F1x or RH850 families.
UPD78F1145AGK(R)-GAJ-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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K 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:
UPD78F1145AGK(R)-GAJ-AX FAQ
1.How can I place an order for UPD78F1145AGK(R)-GAJ-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1145AGK(R)-GAJ-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 UPD78F1145AGK(R)-GAJ-AX reliable?
The price and inventory of UPD78F1145AGK(R)-GAJ-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1145AGK(R)-GAJ-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1145AGK(R)-GAJ-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1145AGK(R)-GAJ-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1145AGK(R)-GAJ-AX?
UPD78F1145AGK(R)-GAJ-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1145AGK(R)-GAJ-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 UPD78F1145AGK(R)-GAJ-AX?
For technical support, including UPD78F1145AGK(R)-GAJ-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1145AGK(R)-GAJ-AX requirements.
6.How does Aetrix verify that UPD78F1145AGK(R)-GAJ-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1145AGK(R)-GAJ-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 UPD78F1145AGK(R)-GAJ-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1145AGK(R)-GAJ-AX?
All UPD78F1145AGK(R)-GAJ-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1145AGK(R)-GAJ-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 UPD78F1145AGK(R)-GAJ-AX part is unused and in its original packaging.
Return procedure for UPD78F1145AGK(R)-GAJ-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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