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Renesas UPD78F1155AGK-GAK-AX
- Part No.:
- UPD78F1155AGK-GAK-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
UPD78F1155AGK-GAK-AX.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,836
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Product details
Overview
UPD78F1155AGK-GAK-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 timer modules. 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 UPD78F1155AGK-GAK-AX datasheet, UPD78F1155AGK-GAK-AX pinout, UPD78F1155AGK-GAK-AX application, or UPD78F1155AGK-GAK-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and QFP-100 package compatibility with legacy 78K0R designs.
Technical Context
The UPD78F1155AGK-GAK-AX implements the 78K0R CPU core with 16-bit architecture, supporting both standard and expanded instruction sets. It integrates a 10-bit successive-approximation ADC with sample-and-hold and programmable conversion timing, alongside three 16-bit timer arrays (TAU) with PWM output capability and input capture functionality.
On-chip peripheral control includes dual UARTs with automatic baud-rate detection, an I²C-compatible serial interface supporting master/slave modes, and a watchdog timer with independent clock source. Memory protection is enforced via a ROM-based boot loader and flash lock bits preventing unauthorized read/write access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 20 MHz max operation frequency |
| 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 SAR ADC with 16 input channels and programmable sampling time |
| Supply Voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade ambient environments |
| Package Type | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad |
Pinout & Package
The UPD78F1155AGK-GAK-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD | Power supply inputs | Dual power domains: VDD for digital logic, EVDD for analog/ADC subsystem |
| VSS, EVSS | Ground reference pins | Separate digital and analog ground planes reduce noise coupling into ADC |
| P00–P06 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX and timer outputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs, ADC trigger signals, and I²C bus lines (SCL/SDA) |
| AVREF | Analog reference voltage | Accepts external reference (1.5–5.5 V) or internal 2.5 V reference for ADC precision scaling |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external reset ICs |
| FLMD0 | Flash mode select | Configures boot mode during power-on reset: normal operation or flash programming mode |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash endurance | 100,000 write/erase cycles enables field firmware updates without hardware replacement |
| ADC with sample-and-hold | 10-bit resolution with 16-channel multiplexing and programmable sampling window for accurate sensor signal acquisition |
| Dual UART with autobaud | Enables robust host communication over noisy industrial RS-485 links without preconfigured baud rate |
| Timer array (TAU) PWM | Three independent 16-bit timer units support simultaneous PWM generation and input capture for motor phase control |
| Hardware I²C interface | Master/slave mode with clock stretching and arbitration handling reduces software overhead in multi-device sensor networks |
Applications
| Industrial Sensor Node | Brushless DC Motor Controller |
|---|---|
Use Scenario: Compact environmental monitoring unit collecting temperature, humidity, and pressure via analog and digital sensors. IC Role / Device Role / Timing Role: Central controller executing sensor polling, calibration compensation, and Modbus RTU transmission over RS-485. Use Value: Integrated 10-bit ADC and dual UART eliminate external signal conditioning and transceiver ICs, reducing BOM count by 3 components. | 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 execution of six-step commutation logic with precise PWM timing and hall-effect sensor input capture. Use Value: TAU timer units deliver sub-microsecond PWM dead-time control and synchronized ADC sampling at motor current zero-crossings. |
| Programmable Logic Relay | Smart Power Meter Interface |
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing user-defined ladder logic, and driving solid-state outputs. IC Role / Device Role / Timing Role: Deterministic real-time controller with interrupt-driven I/O scanning and non-volatile parameter storage. Use Value: 128 KB Flash accommodates full ladder logic interpreter plus configuration data, enabling field reprogramming without firmware reload. | Use Scenario: Data concentrator interfacing with metrology ICs (e.g., ADE7878) and transmitting consumption data via GPRS or PLC. IC Role / Device Role / Timing Role: Peripheral coordinator managing SPI-based metrology reads, RTC synchronization, and secure data packaging. Use Value: Hardware I²C and UART with FIFO buffers ensure reliable communication with multiple metering ICs while maintaining <10 ms latency. |
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 core, 128 KB Flash, 12 KB RAM, lower active current (120 μA/MHz) | Optimized for ultra-low-power battery operation; lacks dedicated TAU timer array | Select when energy efficiency outweighs deterministic PWM timing requirements |
| UPD78F1146AGK-GAK-AX | Same 78K0R/KE3 family, 96 KB Flash, identical pinout and peripheral set | Reduced code capacity limits complex protocol stacks or large lookup tables | Choose for cost-sensitive designs where 96 KB Flash suffices and footprint reuse is critical |
Compared with UPD78F1155AGK-GAK-AX, R5F100PLAFB#30 offers superior power efficiency but requires software adaptation for timer-dependent motor control, while UPD78F1146AGK-GAK-AX provides drop-in compatibility with 32 KB less Flash-ideal for legacy migration with minimal code changes.
Availability
UPD78F1155AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial automation, motor control, and smart metering applications requiring stable component supply across extended production lifecycles.
Supply support for UPD78F1155AGK-GAK-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 solutions.
The 78K0R/KE3 product line delivers cost-optimized 16-bit MCUs for industrial and consumer equipment, emphasizing peripheral integration, Flash reliability, and long-term supply stability for mature embedded platforms.
FAQ
What is the maximum operating frequency of the UPD78F1155AGK-GAK-AX?
The UPD78F1155AGK-GAK-AX operates at a maximum CPU frequency of 20 MHz using its on-chip high-speed system clock. This timing is achievable across the full −40°C to +85°C industrial temperature range when supplied with 2.7–5.5 V, and is supported by internal PLL circuitry that multiplies the base crystal oscillator input.
Does the UPD78F1155AGK-GAK-AX support in-circuit debugging?
Yes, the UPD78F1155AGK-GAK-AX supports in-circuit debugging via the on-chip debug interface compatible with Renesas QB-MINI2 and ID78K0R-QB tools. Debugging features include breakpoint setting, register inspection, and real-time variable monitoring without requiring external JTAG hardware-enabling rapid firmware validation during UPD78F1155AGK-GAK-AX development.
What is the Flash memory endurance specification for the UPD78F1155AGK-GAK-AX?
The UPD78F1155AGK-GAK-AX guarantees 100,000 write/erase cycles for its 128 KB on-chip Flash memory, with data retention exceeding 10 years at +85°C. This endurance rating is validated per Renesas' quality assurance testing and applies to all Flash sectors, enabling robust field firmware updates in UPD78F1155AGK-GAK-AX-based products.
Can the UPD78F1155AGK-GAK-AX operate from a 3.3 V supply?
Yes, the UPD78F1155AGK-GAK-AX supports a supply voltage range of 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V logic systems. At 3.3 V, the device maintains full 20 MHz operation and all peripheral functionality-including ADC accuracy, UART timing, and I²C bus compliance-as specified in the official Renesas electrical characteristics table for UPD78F1155AGK-GAK-AX.
Is the UPD78F1155AGK-GAK-AX pin-compatible with other 78K0R/KE3 devices?
Yes, the UPD78F1155AGK-GAK-AX shares identical pinout and package (100-pin LQFP) with other members of the 78K0R/KE3 family including UPD78F1142AGK-GAK-AX through UPD78F1146AGK-GAK-AX. This allows direct PCB footprint reuse and simplifies migration between variants-though users must verify Flash size, RAM allocation, and peripheral enablement in firmware when substituting UPD78F1155AGK-GAK-AX.
UPD78F1155AGK-GAK-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 65
- 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; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1155AGK-GAK-AX FAQ
1.How can I place an order for UPD78F1155AGK-GAK-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1155AGK-GAK-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 UPD78F1155AGK-GAK-AX reliable?
The price and inventory of UPD78F1155AGK-GAK-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1155AGK-GAK-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1155AGK-GAK-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1155AGK-GAK-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1155AGK-GAK-AX?
UPD78F1155AGK-GAK-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1155AGK-GAK-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 UPD78F1155AGK-GAK-AX?
For technical support, including UPD78F1155AGK-GAK-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1155AGK-GAK-AX requirements.
6.How does Aetrix verify that UPD78F1155AGK-GAK-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1155AGK-GAK-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 UPD78F1155AGK-GAK-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1155AGK-GAK-AX?
All UPD78F1155AGK-GAK-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1155AGK-GAK-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 UPD78F1155AGK-GAK-AX part is unused and in its original packaging.
Return procedure for UPD78F1155AGK-GAK-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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