Renesas UPD78F1177AGF-GAT-E2-AX
- Part No.:
- UPD78F1177AGF-GAT-E2-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
UPD78F1177AGF-GAT-E2-AX.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UPD78F1177AGF-GAT-E2-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KH3 family, featuring 128 KB 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 industrial control and sensor interface applications.
For engineers reviewing the UPD78F1177AGF-GAT-E2-AX datasheet, UPD78F1177AGF-GAT-E2-AX pinout, UPD78F1177AGF-GAT-E2-AX application, or UPD78F1177AGF-GAT-E2-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), on-chip debug support via single-wire interface, and compliance with industrial-grade temperature range (−40°C to +85°C).
Technical Context
The UPD78F1177AGF-GAT-E2-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory organization, and instruction set compatible with earlier 78K0 devices. It integrates a programmable low-voltage detector (LVD) with 4 selectable thresholds and supports two power-saving modes: HALT and STOP.
Peripheral integration includes a 16-bit multifunction timer (TM00–TM03) with capture/compare/PWM functions, a watchdog timer with independent clock source, and a 10-bit successive-approximation ADC with internal reference (2.5 V) and scan mode for sequential channel conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 16-MHz max operation frequency and 1.8–5.5 V core supply tolerance |
| Memory | 128 KB on-chip Flash (100k cycle endurance) + 8 KB RAM; supports in-application programming (IAP) |
| ADC | 10-bit SAR ADC with 16 input channels, 1.2 μs conversion time, and internal 2.5 V reference |
| Timers | Four 16-bit multifunction timers (TM00–TM03) supporting PWM output, input capture, and interval timing |
| Communication | One UART (with LIN support), one I²C bus interface (master/slave), and one CSI interface (SPI-compatible) |
| Supply & Temp | 2.7–5.5 V operating voltage; −40°C to +85°C industrial temperature grade (Standard quality level) |
Pinout & Package
UPD78F1177AGF-GAT-E2-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows standard 78K0R/KH3 layout with dedicated ports P0–P16, analog inputs (AN0–AN15), and system control pins (RESET, FLMD0, REGC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions: UART0 TX/RX, CSI0, timer outputs |
| P10–P17 | Port 1 bidirectional I/O | Supports I²C SCL/SDA, ADC trigger inputs, and external interrupt sources (INTP0–INTP7) |
| AN0–AN15 | Analog input channels | 16-channel 10-bit ADC inputs mapped across ports P2–P9; share pins with digital I/O |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or internal LVD/WDT assertion |
| REGC | Regulator control | Enables internal voltage regulator for EVDD/EVSS domains; must be tied high during normal operation |
| FLMD0 | Flash mode select | Configures boot mode at power-on; tied low for normal Flash execution, high for ROM-based startup |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Single-wire debug (SWD) support enables real-time debugging without dedicated debug pins-reduces PCB footprint and simplifies JTAG routing |
| Low-voltage detection | Programmable LVD with four threshold levels (4.0/3.5/3.0/2.5 V) allows precise brown-out protection tailored to system supply stability requirements |
| ADC scan mode | Hardware-triggered sequential conversion across up to 16 channels eliminates CPU polling overhead and ensures deterministic sampling intervals |
| Timer array flexibility | TM00–TM03 can be cascaded into 32-bit counters or configured independently for PWM generation, input capture, and interval timing-enabling multi-axis motor control |
| Flash programming safety | Write-protection registers and flash lock bits prevent accidental overwrites during field firmware updates or runtime code execution |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors in HVAC blowers and factory automation conveyors. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, generating 3-phase PWM via timer outputs, and sampling current/voltage feedback via ADC. Use Value: Integrated 16-bit timers with complementary PWM outputs and fast 10-bit ADC enable precise current loop control within <10 μs latency. |
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ using analog and digital sensors. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, data preprocessing, low-power wireless transmission coordination, and sleep/wake scheduling. Use Value: HALT/STOP power modes reduce active current to 120 μA and standby current to 1.2 μA, extending battery life beyond 5 years on CR2032. |
| PLC I/O Module | Home Appliance Control |
Use Scenario: DIN-rail mounted digital I/O expansion module for compact PLCs handling discrete input debouncing and relay output sequencing. IC Role / Device Role / Timing Role: Dedicated I/O manager interfacing with optocouplers, driving solid-state relays, and communicating via RS-485 UART. Use Value: 100-pin LQFP provides 64 GPIOs with configurable pull-up/down and noise filtering-eliminates need for external I/O expanders. |
Use Scenario: Main control MCU in washing machines managing motor drive, water valve actuation, temperature sensing, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator of wash cycles, fault detection (imbalance, overheating), and communication with display panel via I²C. Use Value: On-chip 2.5 V ADC reference and built-in LVD ensure accurate thermistor readings and reliable brown-out recovery during voltage sags on shared household circuits. |
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 | Same 78K0R core, 128 KB Flash, but in 64-pin LQFP; lacks 4 ADC channels and 2 timer units | Suitable for space-constrained designs where full 100-pin I/O count is unnecessary | Select when board area is critical and peripheral count can be reduced by ≥25% |
| UPD78F1178AGF-GAT-E2-AX | Pin-compatible upgrade with 256 KB Flash, same package and peripheral set | Required for firmware requiring >128 KB code space or future-proofing against feature expansion | Choose for new designs needing headroom for OTA updates or additional protocol stacks |
Compared with UPD78F1177AGF-GAT-E2-AX, R5F100LEAFB#30 trades I/O and analog resources for smaller footprint, while UPD78F1178AGF-GAT-E2-AX offers direct scalability in Flash capacity without layout change-making it ideal for platform-based product families.
Availability
UPD78F1177AGF-GAT-E2-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for UPD78F1177AGF-GAT-E2-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/KH3 product line delivers cost-optimized 16-bit MCUs targeting industrial automation, home appliances, and sensor systems-emphasizing robustness, low-power operation, and seamless toolchain integration with RA78K0R and CC78K0R.
FAQ
What is the maximum operating frequency of the UPD78F1177AGF-GAT-E2-AX?
The UPD78F1177AGF-GAT-E2-AX operates at a maximum CPU clock frequency of 20 MHz when supplied with VDD ≥ 4.5 V. At lower supply voltages (2.7–4.4 V), the maximum allowed frequency is reduced to 16 MHz per the device's DC and AC characteristics table. This frequency limit ensures timing margin for internal Flash access and peripheral synchronization.
Does the UPD78F1177AGF-GAT-E2-AX support in-system programming (ISP)?
Yes, the UPD78F1177AGF-GAT-E2-AX supports in-application programming (IAP) via its on-chip Flash memory controller. Using the provided Flash self-programming library (Type01), firmware can reprogram designated Flash sectors without halting CPU execution-enabling field firmware updates and parameter storage. The UPD78F1177AGF-GAT-E2-AX requires no external programmer for this function.
What debug interface does the UPD78F1177AGF-GAT-E2-AX use?
The UPD78F1177AGF-GAT-E2-AX uses a single-wire debug (SWD) interface compliant with Renesas' standard debug protocol. It requires only one dedicated pin (BKGD) plus VDD and VSS for connection to tools like the E2 emulator or QB-MINI2. This eliminates the need for full JTAG cabling and reduces debug footprint compared to legacy 78K0 devices.
Is the UPD78F1177AGF-GAT-E2-AX qualified for automotive applications?
No, the UPD78F1177AGF-GAT-E2-AX is rated for Standard quality grade per Renesas documentation, intended for industrial, office, and consumer equipment-not automotive or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature range (−40°C to +125°C), and automotive-specific failure-in-time (FIT) data required for vehicle applications.
How many analog input channels does the UPD78F1177AGF-GAT-E2-AX support?
The UPD78F1177AGF-GAT-E2-AX supports 16 analog input channels (AN0 through AN15), mapped across multiple port pins (P20–P27, P30–P37, P40–P47, P50–P51). All channels share a single 10-bit successive-approximation ADC with programmable sampling time and hardware scan mode for automatic sequential conversion.
UPD78F1177AGF-GAT-E2-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- 78K0R/Kx3
- Packaging:
- Tape & Reel (TR)
- 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:
- 83
- 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:
UPD78F1177AGF-GAT-E2-AX FAQ
1.How can I place an order for UPD78F1177AGF-GAT-E2-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1177AGF-GAT-E2-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 UPD78F1177AGF-GAT-E2-AX reliable?
The price and inventory of UPD78F1177AGF-GAT-E2-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1177AGF-GAT-E2-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1177AGF-GAT-E2-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1177AGF-GAT-E2-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1177AGF-GAT-E2-AX?
UPD78F1177AGF-GAT-E2-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1177AGF-GAT-E2-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 UPD78F1177AGF-GAT-E2-AX?
For technical support, including UPD78F1177AGF-GAT-E2-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1177AGF-GAT-E2-AX requirements.
6.How does Aetrix verify that UPD78F1177AGF-GAT-E2-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1177AGF-GAT-E2-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 UPD78F1177AGF-GAT-E2-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1177AGF-GAT-E2-AX?
All UPD78F1177AGF-GAT-E2-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1177AGF-GAT-E2-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 UPD78F1177AGF-GAT-E2-AX part is unused and in its original packaging.
Return procedure for UPD78F1177AGF-GAT-E2-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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