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Renesas UPD78F0078GK-9ET-A
- Part No.:
- UPD78F0078GK-9ET-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD78F0078GK-9ET-A.pdf
- Description:
- IC MCU
- Quantity:
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Product details
Overview
UPD78F0078GK-9ET-A from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K/0 Series, featuring 64 KB on-chip flash memory, 4 KB RAM, and integrated peripherals including UART0, UART2, SIO3, CSI1, 16-bit timers, 8-bit timers, A/D converter (8-channel, 10-bit), and watchdog timer. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial and consumer equipment.
For engineers reviewing the UPD78F0078GK-9ET-A datasheet, UPD78F0078GK-9ET-A pinout, UPD78F0078GK-9ET-A application, or UPD78F0078GK-9ET-A equivalent, key selection considerations include its flash-based programmability, I/O count (up to 74 pins), integrated analog-to-digital conversion, low-power standby modes, and compatibility with RA78K0/CC78K0 toolchains for firmware development.
Technical Context
The UPD78F0078GK-9ET-A implements the 78K/0 CPU core with 16-bit address space and supports both mask ROM (µPD780078) and flash (µPD78F0078) variants. Its architecture includes a dedicated clock generator supporting main system clock (X1/X2), sub-clock (XT1/XT2), and internal RC oscillators - enabling flexible power/performance trade-offs across operating modes.
Peripheral integration follows the 78K/0 Subseries functional partitioning: UART0 and UART2 support asynchronous serial communication; SIO3 and CSI1 provide synchronous serial I/O; the 10-bit A/D converter features sample-and-hold and selectable reference sources (AVREF or internal); and the watchdog timer offers both windowed and non-windowed operation with independent clock source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K/0 8-bit CISC core with 16-bit addressing; enables compact code footprint and deterministic interrupt latency for real-time control loops. |
| Flash Memory | 64 KB on-chip flash; supports in-system programming (ISP) and sector erase - suitable for field-upgradable firmware without external programmer dependency. |
| RAM Size | 4 KB on-chip RAM; sufficient for stack, variables, and small buffers in sensor interface or motor control applications. |
| A/D Converter | 8-channel, 10-bit successive approximation ADC; includes internal reference option and scan mode - enables direct sensing of analog sensors (e.g., temperature, voltage, current). |
| Max Operating Frequency | 20 MHz at VDD = 4.5–5.5 V; delivers ~10 MIPS throughput - adequate for multi-sensor polling, PWM generation, and protocol handling (e.g., UART-based device management). |
| Supply Voltage Range | 2.7–5.5 V; supports direct connection to common industrial rails (3.3 V or 5 V) without level-shifting, simplifying power design. |
| I/O Pins | 74 programmable I/O pins (in 100-pin LQFP package); provides ample GPIO for LED indicators, button inputs, relay drivers, and peripheral expansion. |
Pinout & Package
UPD78F0078GK-9ET-A 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 µPD78F0078 Subseries specification, supporting multiplexed I/O, analog inputs, clock inputs, reset, and power domains (VDD0/VDD1, VSS0/VSS1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 bidirectional I/O | General-purpose digital I/O; P00–P02 optionally serve as UART0 TXD/RXD/CTS - enables hardware flow-controlled serial interface without external logic. |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP0–INTP7), timer input capture (TIA0–TIA7), and A/D trigger - allows synchronized sampling and event-driven response. |
| P40–P47 | Port 4 bidirectional I/O | Configurable as CSI1 data/clock lines or UART2 TXD/RXD - provides dual serial interface capability for bridging protocols or daisy-chain communication. |
| X1, X2 | Crystal oscillator input/output | Accepts 1–20 MHz crystal for main system clock; high-accuracy timing source for UART baud rate generation and real-time scheduling. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; ensures reliable initialization after power-on or brown-out conditions when used with external RC network. |
| VDD0, VDD1 | Core and I/O power supply | Dual VDD pins decouple core logic (VDD0) from I/O drivers (VDD1) - reduces switching noise coupling into analog sections and improves EMI robustness. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash Memory | 64 KB flash with 100,000 write/erase cycles and 10-year data retention - eliminates need for external EEPROM in parameter storage or calibration data logging. |
| Low-Power Standby Modes | HALT, STOP, and IDLE modes with wake-up via external interrupt or timer - extends battery life in portable or energy-conscious industrial nodes. |
| Integrated A/D Converter | 10-bit resolution, 8-channel input, internal reference option - enables direct analog sensor interfacing without external ADC or voltage reference ICs. |
| Multiple Serial Interfaces | UART0, UART2, SIO3, CSI1 - supports simultaneous host communication (UART), sensor bus (CSI), and legacy device interface (SIO) in one chip. |
| Watchdog Timer with Window Mode | Dedicated watchdog clock (sub-oscillator or internal RC); windowed operation prevents accidental feed - critical for fail-safe recovery in unattended systems. |
Applications
| Industrial Control Panel | Home Appliance Controller |
|---|---|
|
Use Scenario: Central controller in HVAC control panel managing temperature setpoints, fan speed, valve actuation, and display updates. IC Role / Device Role / Timing Role: Main system MCU executing closed-loop PID control, reading thermistor/pressure sensor ADC values, driving PWM fans, and communicating via UART to HMI module. Use Value: Integrated 10-bit ADC and 74 GPIO eliminate external signal conditioning and port expanders; flash memory enables over-the-air firmware updates for feature enhancements. |
Use Scenario: Embedded controller in washing machine managing motor phase control, water level sensing, detergent dispensing, and user interface. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating motor drive timing (via 16-bit timers), A/D sampling of load cell and temperature, and UART-based diagnostic logging. Use Value: Dual UART interfaces allow concurrent communication with display module and service port; low-power STOP mode reduces standby consumption during idle cycles. |
| Smart Meter Interface Module | Factory Automation Sensor Node |
|
Use Scenario: Data concentrator node collecting pulse outputs from multiple utility meters and transmitting aggregated readings via RS-485. IC Role / Device Role / Timing Role: Protocol bridge MCU converting meter pulse trains (via INT pins) into Modbus RTU frames transmitted over UART2 with RS-485 transceiver. Use Value: Hardware UART with automatic baud rate detection and 74 GPIO for opto-isolated pulse inputs reduce BOM cost and improve timing accuracy vs. bit-banged solutions. |
Use Scenario: Wireless sensor node monitoring vibration, temperature, and humidity in CNC machine environment before forwarding data to gateway. IC Role / Device Role / Timing Role: Sensor fusion processor acquiring analog (temp/humidity) and digital (vibration via comparator) signals, applying filtering, and packaging data for RF transmission. Use Value: On-chip 10-bit ADC with internal reference ensures stable measurements across supply variations; HALT mode extends battery life between sensor reads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLGSP#30 | RL78/G13-based; 32 KB flash, 4 KB RAM, lower max frequency (24 MHz), integrated LIN transceiver - no UART2 or CSI1. | Targets automotive body electronics with LIN compliance; lacks UART2/SIO3 needed for legacy industrial protocols. | Select if LIN bus integration is required and UART2/CSI1 are unused; verify pin compatibility for existing PCB layout. |
| MB95560PFT-G-SAMPLE | Fujitsu FM3-based; 64 KB flash, 8 KB RAM, 32-bit core, higher performance but larger code size and power draw. | Suitable for complex motion control where 8-bit throughput is limiting; requires different toolchain and lacks native 78K/0 peripheral register mapping. | Choose when application demands >10 MIPS or advanced math operations; expect longer development cycle due to architectural shift. |
Compared with UPD78F0078GK-9ET-A, R5F100PLGSP#30 offers automotive qualification and LIN support but sacrifices dual UART flexibility, while MB95560PFT-G-SAMPLE delivers higher compute headroom at the cost of increased power and software migration effort - making UPD78F0078GK-9ET-A optimal for cost-sensitive, protocol-diverse industrial control where 78K/0 ecosystem maturity matters.
Availability
UPD78F0078GK-9ET-A is available at Aetrix Electronics and suitable for industrial control panels, home appliance controllers, smart meter interface modules, and factory automation sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for UPD78F0078GK-9ET-A 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The UPD78F0078GK-9ET-A belongs to the 78K/0 Series - a mature 8-bit MCU family designed for cost-effective, low-power embedded control in appliances, industrial equipment, and consumer electronics where deterministic real-time response and toolchain stability are prioritized over raw performance.
FAQ
What is the maximum operating frequency of the UPD78F0078GK-9ET-A?
The UPD78F0078GK-9ET-A operates at up to 20 MHz when powered at 4.5–5.5 V. At lower supply voltages (2.7–4.4 V), the maximum frequency is reduced to 10 MHz to ensure timing margin and reliability. This dual-speed capability allows designers to optimize between performance and power consumption based on system requirements and rail constraints.
Does the UPD78F0078GK-9ET-A include an integrated A/D converter?
Yes, the UPD78F0078GK-9ET-A integrates an 8-channel, 10-bit successive approximation A/D converter. It supports both external reference (AVREF pin) and internal reference options, and includes scan mode for automatic sequential conversion - enabling efficient monitoring of multiple analog sensors without CPU intervention.
What package type is used for the UPD78F0078GK-9ET-A?
The UPD78F0078GK-9ET-A is supplied in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. This package supports standard surface-mount assembly processes and provides mechanical stability and thermal dissipation suitable for industrial-grade applications operating across extended temperature ranges.
How many serial communication interfaces does the UPD78F0078GK-9ET-A support?
The UPD78F0078GK-9ET-A supports four serial interfaces: UART0, UART2, SIO3, and CSI1. UART0 and UART2 operate asynchronously for RS-232/RS-485 communication; SIO3 is a synchronous serial interface compatible with SPI-like protocols; and CSI1 supports clocked serial data transfer with slave select - enabling multi-protocol connectivity in a single chip.
Is the UPD78F0078GK-9ET-A pin-compatible with other members of the 78K/0 Subseries?
The UPD78F0078GK-9ET-A shares the same 100-pin LQFP footprint and core pinout as other µPD78F0078 variants (e.g., UPD78F0078GK-UEU-A), but differs from µPD780078Y Subseries devices which add IIC0 and modify some pin functions. Always verify pin function mapping against the specific variant's User's Manual Chapter 3 or 4 before board reuse.
UPD78F0078GK-9ET-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
UPD78F0078GK-9ET-A FAQ
1.How can I place an order for UPD78F0078GK-9ET-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0078GK-9ET-A 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 UPD78F0078GK-9ET-A reliable?
The price and inventory of UPD78F0078GK-9ET-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0078GK-9ET-A is usually 5 days.
3.What payment methods are accepted for UPD78F0078GK-9ET-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0078GK-9ET-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0078GK-9ET-A?
UPD78F0078GK-9ET-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0078GK-9ET-A 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 UPD78F0078GK-9ET-A?
For technical support, including UPD78F0078GK-9ET-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0078GK-9ET-A requirements.
6.How does Aetrix verify that UPD78F0078GK-9ET-A is sourced from the original manufacturer or authorized distributors?
All UPD78F0078GK-9ET-A 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 UPD78F0078GK-9ET-A meets industry standards.
7.What is the process for return or replacement of UPD78F0078GK-9ET-A?
All UPD78F0078GK-9ET-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0078GK-9ET-A, 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 UPD78F0078GK-9ET-A part is unused and in its original packaging.
Return procedure for UPD78F0078GK-9ET-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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