Renesas UPD78F1187AGJ(R)-GAE-AX
- Part No.:
- UPD78F1187AGJ(R)-GAE-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
UPD78F1187AGJ(R)-GAE-AX.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,593
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Product details
Overview
UPD78F1187AGJ(R)-GAE-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KJ3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 12-bit ADC, UART, I²C, and timer modules. It operates at up to 20 MHz with supply voltage range of 2.7–5.5 V and targets embedded control in industrial and consumer equipment.
For engineers reviewing the UPD78F1187AGJ(R)-GAE-AX datasheet, UPD78F1187AGJ(R)-GAE-AX pinout, UPD78F1187AGJ(R)-GAE-AX application, or UPD78F1187AGJ(R)-GAE-AX equivalent, key selection considerations include Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), and compatibility with RA78K0R C compiler and QB-MINI2 debugger tools.
Technical Context
The UPD78F1187AGJ(R)-GAE-AX implements the 78K0R CPU core with 16-bit architecture, supporting 131 instructions and 16-level hardware stack. It integrates a 12-bit successive-approximation ADC with 16 input channels and conversion time of 1.2 μs per sample.
Peripheral subsystems include three 16-bit timer arrays (TAU) with PWM output capability, two serial interface modules (UART and I²C), and a watchdog timer with independent clock source. The device uses SuperFlash® technology licensed from Silicon Storage Technology for nonvolatile memory programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0R 16-bit CPU with 131 instructions and 16-level hardware stack |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 10-year data retention |
| RAM | 8 KB on-chip RAM for variables and stack operations |
| ADC | 12-bit SAR ADC with 16 input channels and 1.2 μs conversion time |
| Timers | Three 16-bit timer array units (TAU) supporting PWM, input capture, and interval timing |
| Communication | One UART channel and one I²C interface supporting standard/fast-mode speeds |
| Supply Voltage | 2.7 V to 5.5 V operation enabling direct interface with 3.3 V or 5 V logic systems |
| Operating Temp | −40°C to +85°C industrial-grade temperature range suitable for factory automation |
Pinout & Package
UPD78F1187AGJ(R)-GAE-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across 16 general-purpose ports (P0–P15), analog reference inputs (AVREF0/AVREF1), power domains (VDD/EVDD0/EVDD1, VSS/EVSS0/EVSS1), reset (RESET), and mode control (FLMD0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART TX/RX and timer outputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs, ADC trigger, and I²C SCL/SDA signals |
| P20–P27 | Port 2 bidirectional I/O | Provides additional timer I/O, PWM outputs, and analog input channels for ADC |
| AVREF0/AVREF1 | Analog reference inputs | Enable selectable internal/external reference for 12-bit ADC precision measurement |
| RESET | Active-low reset input | Hardware reset assertion initiates system initialization and register clearing |
| FLMD0 | Flash mode control | Determines boot mode (ROM vs. user program execution) during power-on reset |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with SuperFlash® | Enables field firmware updates without external programmer; 100k cycle endurance supports long-life industrial deployment |
| 12-bit ADC with 16 channels | Allows simultaneous monitoring of multiple analog sensors (e.g., temperature, pressure, current) with 1.2 μs conversion speed |
| Three 16-bit TAU modules | Delivers precise motor control via complementary PWM generation and dead-time insertion |
| Integrated UART and I²C | Reduces BOM count by eliminating external level shifters or protocol translators in sensor hub or HMI designs |
| Wide supply voltage range | Permits direct integration into mixed-voltage systems (e.g., 3.3 V MCU core with 5 V actuator drivers) |
Applications
| Industrial Motor Control | Smart Home Sensor Hub |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers and conveyor drives using real-time feedback from current and position sensors. IC Role / Device Role / Timing Role: Central controller executing FOC algorithms, generating PWM waveforms, and managing ADC sampling synchronization. Use Value: Integrated TAU timers with dead-time control and 12-bit ADC enable accurate current sensing and torque regulation without external signal conditioning. | Use Scenario: Aggregation and preprocessing of environmental data (temperature, humidity, CO₂) from multiple I²C and analog sensors in residential smart thermostats. IC Role / Device Role / Timing Role: Sensor interface MCU handling multi-channel ADC acquisition, UART communication to gateway, and local decision logic. Use Value: On-chip 12-bit ADC and dual serial interfaces eliminate external ADC and bus transceivers, reducing PCB area and component cost. |
| Factory Automation I/O Module | Consumer Appliance Control |
Use Scenario: Digital input/output expansion module for PLCs, monitoring limit switches and driving solenoids or indicator LEDs in packaging machinery. IC Role / Device Role / Timing Role: Deterministic I/O processor with programmable debounce, interrupt-driven edge detection, and watchdog supervision. Use Value: 16 GPIO ports with configurable pull-up/down and noise filtering support robust industrial signal acquisition without external Schmitt triggers. | Use Scenario: Main control unit in washing machines managing water valve sequencing, motor direction/torque, and user interface display. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating motor drive, heater control, and UI responsiveness via timer interrupts and UART debug logging. Use Value: 128 KB Flash accommodates full feature set including safety diagnostics and OTA update capability within single-chip footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLAFB#30 | RL78/G13-based; lower Flash (64 KB), higher active current (120 μA/MHz), no dedicated TAU PWM outputs | Suitable for simpler control tasks where ADC channel count and PWM resolution are less critical | Select when cost sensitivity outweighs need for high-resolution motor control features |
| UPD78F1186AGJ(R)-GAE-AX | Same package and pinout; reduced Flash (96 KB) and RAM (6 KB); identical peripheral set | Matches UPD78F1187AGJ(R)-GAE-AX in all interface and timing roles but with smaller code/data footprint | Choose for legacy code migration or space-constrained firmware requiring <96 KB Flash |
Compared with UPD78F1187AGJ(R)-GAE-AX, R5F100PLAFB#30 offers lower power consumption but lacks TAU-based PWM flexibility, while UPD78F1186AGJ(R)-GAE-AX provides identical peripheral functionality with reduced memory-making it ideal for firmware-downsized variants of the same design.
Availability
UPD78F1187AGJ(R)-GAE-AX is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor hubs, and factory automation I/O modules requiring stable component supply and long-term production support.
Supply support for UPD78F1187AGJ(R)-GAE-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and consumer markets.
The UPD78F1187AGJ(R)-GAE-AX belongs to the 78K0R/KJ3 microcontroller line, designed specifically for cost-sensitive, high-reliability embedded control applications requiring rich analog integration and deterministic real-time performance.
FAQ
What is the maximum operating frequency of the UPD78F1187AGJ(R)-GAE-AX?
The UPD78F1187AGJ(R)-GAE-AX operates at a maximum CPU clock frequency of 20 MHz, supported by its internal high-speed oscillator and external crystal options up to 20 MHz. This frequency enables real-time execution of control loops with sub-millisecond latency, and the device maintains full peripheral functionality-including ADC sampling and PWM generation-at this speed.
Does the UPD78F1187AGJ(R)-GAE-AX support in-circuit debugging?
Yes, the UPD78F1187AGJ(R)-GAE-AX supports in-circuit debugging via the on-chip debug interface compatible with QB-MINI2 and QB-78K0RKX3 emulators. It provides full breakpoint, watchpoint, and register inspection capabilities during runtime, and the debug interface remains functional even when Flash memory is secured, allowing secure development workflows.
What development tools are officially supported for the UPD78F1187AGJ(R)-GAE-AX?
Renesas officially supports the RA78K0R assembler, CC78K0R C compiler (Ver. 2.00), SM+ system simulator, and ID78K0R-QB integrated debugger for the UPD78F1187AGJ(R)-GAE-AX. These tools are validated against the 78K0R/KJ3 User's Manual U18417EJ4V0UD and enable full firmware development, simulation, and hardware validation.
Is the UPD78F1187AGJ(R)-GAE-AX qualified for automotive applications?
No, the UPD78F1187AGJ(R)-GAE-AX is rated as a Standard quality grade device per Renesas documentation and is intended for industrial, office, and consumer applications-not automotive or safety-critical systems. Its qualification excludes AEC-Q100 testing, and Renesas explicitly restricts use in transportation equipment without prior written consent.
How many analog input channels does the built-in ADC support on the UPD78F1187AGJ(R)-GAE-AX?
The UPD78F1187AGJ(R)-GAE-AX integrates a 12-bit successive-approximation ADC supporting up to 16 analog input channels mapped across ports P0–P2 and dedicated analog pins. Channel selection is software-configurable, and conversions can be triggered by software, timer events, or external signals-enabling synchronized sampling in motor control or sensor fusion applications.
UPD78F1187AGJ(R)-GAE-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-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:
- 127
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1187AGJ(R)-GAE-AX FAQ
1.How can I place an order for UPD78F1187AGJ(R)-GAE-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1187AGJ(R)-GAE-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 UPD78F1187AGJ(R)-GAE-AX reliable?
The price and inventory of UPD78F1187AGJ(R)-GAE-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1187AGJ(R)-GAE-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1187AGJ(R)-GAE-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1187AGJ(R)-GAE-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1187AGJ(R)-GAE-AX?
UPD78F1187AGJ(R)-GAE-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1187AGJ(R)-GAE-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 UPD78F1187AGJ(R)-GAE-AX?
For technical support, including UPD78F1187AGJ(R)-GAE-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1187AGJ(R)-GAE-AX requirements.
6.How does Aetrix verify that UPD78F1187AGJ(R)-GAE-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1187AGJ(R)-GAE-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 UPD78F1187AGJ(R)-GAE-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1187AGJ(R)-GAE-AX?
All UPD78F1187AGJ(R)-GAE-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1187AGJ(R)-GAE-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 UPD78F1187AGJ(R)-GAE-AX part is unused and in its original packaging.
Return procedure for UPD78F1187AGJ(R)-GAE-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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