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Renesas UPD78F1187AGJ-GAE-AX
- Part No.:
- UPD78F1187AGJ-GAE-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
UPD78F1187AGJ-GAE-AX.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,787
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Product details
Overview
UPD78F1187AGJ-GAE-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 16-bit timer arrays, UART, I²C, and 10-bit ADC. It operates at up to 20 MHz, supports 5 V operation, and targets embedded control in industrial equipment and consumer appliances.
For engineers reviewing the UPD78F1187AGJ-GAE-AX datasheet, UPD78F1187AGJ-GAE-AX pinout, UPD78F1187AGJ-GAE-AX application, or UPD78F1187AGJ-GAE-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade quality standards per Renesas' "Standard" classification.
Technical Context
The UPD78F1187AGJ-GAE-AX implements the 78K0R CPU core with 16-bit architecture, supporting 131 instructions and 16 addressing modes. It integrates a 10-bit successive-approximation ADC with 16 input channels and programmable sampling time, alongside dual 16-bit timer arrays capable of PWM generation, input capture, and output compare functions.
On-chip power management includes a voltage regulator controller (REGC pin), low-voltage detection (LVD) circuit with 3 selectable thresholds (4.2 V, 3.8 V, 3.3 V), and multiple clock sources - internal high-speed oscillator (20 MHz), internal low-speed oscillator (15 kHz), and external crystal support up to 20 MHz - enabling flexible system timing and low-power operation modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 131 instructions and 16 addressing modes |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 10-year data retention |
| RAM Size | 8 KB on-chip RAM for variables, stack, and buffer storage |
| ADC Resolution | 10-bit successive-approximation ADC with 16 analog inputs and programmable sampling time |
| Operating Voltage | 4.0 V to 5.5 V - compatible with standard 5 V logic systems and legacy industrial interfaces |
| Max Clock Frequency | 20 MHz - enables real-time control loop execution within ≤50 ns instruction cycle time |
| Temperature Range | −40°C to +85°C - qualified for industrial ambient environments without derating |
Pinout & Package
UPD78F1187AGJ-GAE-AX is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow the 78K0R/KE3 standard layout, supporting full peripheral multiplexing and dedicated reset/power management pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / EVDD | Power supply (core & I/O) | Dual 5 V supply pins decoupled separately to reduce noise coupling between digital core and I/O drivers |
| VSS / EVSS | GND (core & I/O) | Separate ground returns minimize ground bounce during high-speed I/O switching |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or RC network for power-on reset |
| REGC | Voltage regulator control | Enables internal 5 V regulator when pulled high; disables regulator and allows external supply bypass |
| FLMD0 | Flash mode select | Configures boot mode at power-on: high = normal operation, low = Flash programming mode |
| P00–P06 | Port 0 bidirectional I/O | General-purpose I/O with NMI, INT0–INT2, and ADC trigger capability - usable as interrupt sources or analog inputs |
| P10–P17 | Port 1 bidirectional I/O | Supports UART0/1, I²C, and timer array channels - enables serial communication and PWM output without external components |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with self-programming | Enables firmware updates in-system via UART or dedicated bootloader - no external programmer required for field upgrades |
| Low-voltage detection (LVD) | Three programmable thresholds (4.2 V / 3.8 V / 3.3 V) allow graceful shutdown or safe state entry before brownout-induced corruption |
| Dual 16-bit timer arrays | Provide independent PWM generation, input capture for encoder counting, and output compare for precise timing events - eliminates need for external timers |
| 10-bit 16-channel ADC | Supports simultaneous sampling across multiple sensors (e.g., motor current, temperature, voltage) with hardware-triggered conversion sequencing |
| Hardware I²C and UART interfaces | Offload protocol handling from CPU - reduces ISR overhead and improves deterministic response in multi-device sensor networks |
Applications
| Industrial Motor Control | Home Appliance Control |
|---|---|
Use Scenario: Closed-loop speed and torque control of BLDC motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing gate driver timing, and monitoring current/voltage feedback via ADC. Use Value: Integrated 16-bit timers with complementary PWM outputs and dead-time insertion enable precise 3-phase inverter control without external logic. | Use Scenario: Real-time monitoring and actuation in smart refrigerators, including compressor control, defrost cycle management, and door-open detection. IC Role / Device Role / Timing Role: Central appliance controller interfacing with thermistors, relays, displays, and user interface buttons. Use Value: 10-bit ADC with 16 channels supports simultaneous temperature sensing across multiple zones while UART/I²C manage display and wireless modules. |
| Factory Automation I/O Module | Building Energy Management System |
Use Scenario: DIN-rail mounted remote I/O unit collecting digital inputs, analog sensor data, and driving solenoids/relays in PLC-peripheral applications. IC Role / Device Role / Timing Role: Embedded controller handling protocol translation (Modbus RTU over RS-485), local decision logic, and watchdog supervision. Use Value: Dual UARTs support isolated RS-485 communication and debug port simultaneously; LVD ensures reliable operation during line voltage fluctuations. | Use Scenario: Intelligent lighting and HVAC zone controller in commercial buildings, aggregating occupancy, ambient light, and temperature data. IC Role / Device Role / Timing Role: Edge node processor performing local sensor fusion, scheduling, and wired/wireless gateway coordination. Use Value: 128 KB Flash accommodates secure OTA update image and configuration storage; −40°C to +85°C rating ensures reliability in unconditioned mechanical rooms. |
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-based; lower Flash (64 KB), higher code efficiency, 1.6–5.5 V operation | Better suited for battery-powered or ultra-low-power nodes where active current < 120 µA/MHz is critical | Select if migrating to Renesas' newer RL78 platform with toolchain continuity and enhanced low-power features |
| UPD78F1154GB-GAH-AX | Same 78K0R/KE3 family; 96 KB Flash, 6 KB RAM, identical pinout and peripheral set | Direct drop-in replacement where reduced memory footprint suffices and cost optimization is prioritized | Choose when existing PCB layout and firmware binary compatibility are mandatory and full 128 KB Flash is unused |
Compared with UPD78F1187AGJ-GAE-AX, R5F100LEAFB#30 offers superior energy efficiency but requires software migration, while UPD78F1154GB-GAH-AX provides true pin-compatible substitution with identical peripheral timing and register mapping - ideal for BOM rationalization without redesign.
Availability
UPD78F1187AGJ-GAE-AX is available at Aetrix Electronics and suitable for industrial motor control, home appliance control, factory automation I/O modules, and building energy management systems requiring stable component supply and long-term manufacturing support.
Supply support for UPD78F1187AGJ-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 leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The UPD78F1187AGJ-GAE-AX belongs to the 78K0R/KE3 16-bit MCU product line, designed specifically for cost-sensitive, high-reliability embedded control applications in industrial equipment and white goods where Flash endurance, analog integration, and 5 V robustness are essential.
FAQ
What is the maximum operating frequency of the UPD78F1187AGJ-GAE-AX?
The UPD78F1187AGJ-GAE-AX operates at a maximum clock frequency of 20 MHz using its internal high-speed oscillator or an external crystal. This yields a 50 ns instruction cycle time for the 78K0R core, enabling deterministic real-time control in applications such as motor commutation and sensor sampling. The device also supports lower-frequency modes for power-sensitive operation.
Does the UPD78F1187AGJ-GAE-AX support in-system programming (ISP)?
Yes, the UPD78F1187AGJ-GAE-AX supports in-system programming via its built-in bootloader, accessible through UART0 or UART1. Firmware updates can be performed without removing the chip from the board, using standard serial communication and Renesas' Flash development toolkit. The 128 KB Flash memory is rated for 100,000 write/erase cycles with 10-year data retention.
What are the power supply requirements for the UPD78F1187AGJ-GAE-AX?
The UPD78F1187AGJ-GAE-AX requires a 4.0 V to 5.5 V supply on VDD/EVDD pins, with separate VSS/EVSS grounds. It includes an internal voltage regulator controlled by the REGC pin - pulling REGC high enables the regulator for single-supply operation, while pulling it low bypasses regulation for external 5 V supply use. Decoupling capacitors (0.1 µF ceramic + 10 µF tantalum) are recommended per Renesas design guidelines.
How many analog-to-digital converter (ADC) channels does the UPD78F1187AGJ-GAE-AX have?
The UPD78F1187AGJ-GAE-AX integrates a 10-bit successive-approximation ADC with 16 selectable input channels. These channels map to dedicated analog pins (e.g., AN0–AN15) and can be configured for single-ended or differential measurement. Conversion is triggered by software, timer, or external event, with programmable sampling time to accommodate varying source impedances.
Is the UPD78F1187AGJ-GAE-AX qualified for industrial temperature operation?
Yes, the UPD78F1187AGJ-GAE-AX is specified for operation across −40°C to +85°C ambient temperature and classified under Renesas' "Standard" quality grade, making it suitable for industrial equipment, factory automation, and consumer appliances. Its electrical specifications - including Flash endurance, ADC accuracy, and I/O drive strength - are guaranteed across this full range without derating.
UPD78F1187AGJ-GAE-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-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, 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; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1187AGJ-GAE-AX FAQ
1.How can I place an order for UPD78F1187AGJ-GAE-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1187AGJ-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-GAE-AX reliable?
The price and inventory of UPD78F1187AGJ-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-GAE-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1187AGJ-GAE-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1187AGJ-GAE-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1187AGJ-GAE-AX?
UPD78F1187AGJ-GAE-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1187AGJ-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-GAE-AX?
For technical support, including UPD78F1187AGJ-GAE-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1187AGJ-GAE-AX requirements.
6.How does Aetrix verify that UPD78F1187AGJ-GAE-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1187AGJ-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-GAE-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1187AGJ-GAE-AX?
All UPD78F1187AGJ-GAE-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1187AGJ-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-GAE-AX part is unused and in its original packaging.
Return procedure for UPD78F1187AGJ-GAE-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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