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Renesas UPD78F1142GK(R)-GAJ-AX
- Part No.:
- UPD78F1142GK(R)-GAJ-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD78F1142GK(R)-GAJ-AX.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,806
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Product details
Overview
UPD78F1142GK(R)-GAJ-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 10-bit ADC with 24 channels. It operates at up to 20 MHz, supports 5 V operation, and targets embedded control in industrial sensors and motor drive interfaces.
For engineers reviewing the UPD78F1142GK(R)-GAJ-AX datasheet, UPD78F1142GK(R)-GAJ-AX pinout, UPD78F1142GK(R)-GAJ-AX application, or UPD78F1142GK(R)-GAJ-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compatibility with RA78K0R C compiler and QB-MINI2 on-chip debug emulator.
Technical Context
The UPD78F1142GK(R)-GAJ-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory structure, and instruction set compatible with earlier 78K0 devices. It integrates a 16-bit timer array unit (TAU) with 8 channels, watchdog timer, and clock output function for system timing synchronization.
Peripheral integration includes UART (2 channels), CSI (2 channels), I2C (1 channel), and 24-channel 10-bit ADC with programmable sampling time and scan mode. The device uses SuperFlash® technology licensed from Silicon Storage Technology for reliable nonvolatile memory programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 20 MHz max operation frequency |
| Program Memory | 128 KB on-chip Flash (SuperFlash®), 100,000 erase/write cycles |
| Data Memory | 8 KB RAM with retention during STOP mode |
| Analog-to-Digital Converter | 10-bit resolution, 24 input channels, programmable conversion start trigger |
| Operating Voltage | 4.0 V to 5.5 V - supports direct interface with 5 V logic and legacy industrial I/O |
| Temperature Range | −40°C to +85°C - qualified for industrial ambient environments |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - standard surface-mount footprint |
Pinout & Package
The UPD78F1142GK(R)-GAJ-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 per Renesas User's Manual U17854EJ9V0UD, Chapter 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | General-purpose digital I/O; P00–P03 support external interrupt inputs |
| P10–P17 | Port 1 bidirectional I/O | Includes UART0 TX/RX, CSI0 clock/data, and timer output functions |
| P20–P27 | Port 2 bidirectional I/O | Supports ADC input channels AN0–AN7 and TAU channel outputs |
| P40–P43 | Port 4 bidirectional I/O | ADC input AN8–AN11 and I²C SCL/SDA pins |
| AVREF | Analog reference voltage input | External reference for ADC; accepts 2.0 V to VDD |
| RESET | Active-low reset input | Asynchronous hardware reset; internal pull-up enabled by default |
| VDD / VSS | Power supply / ground | Dual power domains: VDD/EVDD (core/I/O), AVDD (analog); separate AVSS |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with data retention | 128 KB Flash retains program code for ≥20 years at 85°C; supports in-system programming via on-chip bootloader |
| Multi-function timer array (TAU) | 8-channel 16-bit timer with PWM, input capture, and interval timing modes - enables precise motor phase control |
| Flexible serial interface | 2× UART, 2× CSI, 1× I²C - allows concurrent communication with sensors, displays, and host controllers |
| ADC with hardware scan control | 24-channel 10-bit ADC with automatic channel sequencing and trigger-synchronized sampling - reduces CPU overhead in sensor polling |
| Low-power operation modes | Halt, Stop, and Sub-clock STOP modes with wake-up from multiple sources - extends battery life in portable industrial tools |
Applications
| Industrial Sensor Node | Brushless DC Motor Controller |
|---|---|
Use Scenario: Compact environmental monitoring unit with temperature, humidity, and pressure sensors. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, local data processing, and RS-485 communication. Use Value: Integrated 24-channel ADC eliminates external multiplexer; UART and CSI enable direct connection to digital sensors and transceivers. | Use Scenario: Closed-loop speed/torque control for HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time motor commutation engine using TAU-generated PWM and Hall-effect feedback decoding. Use Value: 8-channel TAU provides independent PWM outputs for 3-phase inverter gate drivers plus auxiliary timing for fault detection. |
| Programmable Logic Relay | Factory Floor HMI Panel |
Use Scenario: DIN-rail mounted relay module with configurable I/O mapping and ladder logic execution. IC Role / Device Role / Timing Role: Deterministic real-time controller executing user-defined logic with <100 µs scan cycle. Use Value: 20 MHz CPU and dedicated interrupt vectors ensure sub-millisecond response to discrete input transitions. | Use Scenario: Local operator interface with touch panel, LED indicators, and status LEDs. IC Role / Device Role / Timing Role: Interface manager handling display refresh, button debouncing, and LED dimming via PWM. Use Value: On-chip 8 KB RAM buffers frame data; multiple I/O ports drive 16+ LEDs and read 8+ tactile switches without external glue logic. |
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; 32 KB Flash, 4 KB RAM, lower power (150 µA/MHz), no 5 V tolerance | Targets battery-powered or low-voltage systems; lacks 5 V I/O compatibility | Select when ultra-low power and smaller memory footprint suffice, and 5 V peripherals are absent |
| UPD78F1144GK(R)-GAJ-AX | Same 78K0R/KE3 family; 256 KB Flash, identical pinout and peripheral set | Direct upgrade path for designs requiring larger firmware image or future feature expansion | Choose for forward-compatible designs where Flash headroom is critical and PCB layout must remain unchanged |
Compared with UPD78F1142GK(R)-GAJ-AX, R5F100LEAFB#30 offers superior energy efficiency but requires level-shifting for 5 V interfaces, while UPD78F1144GK(R)-GAJ-AX delivers double the Flash capacity with zero hardware redesign effort.
Availability
UPD78F1142GK(R)-GAJ-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and programmable logic relays requiring stable component supply across multi-year production cycles.
Supply support for UPD78F1142GK(R)-GAJ-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/KE3 product line delivers cost-optimized 16-bit MCUs targeting industrial automation, motor control, and sensor interface applications where reliability, 5 V robustness, and toolchain maturity are essential.
FAQ
What is the maximum operating frequency of the UPD78F1142GK(R)-GAJ-AX?
The UPD78F1142GK(R)-GAJ-AX operates at a maximum CPU frequency of 20 MHz when supplied with 4.0 V to 5.5 V. This frequency is achieved using the on-chip high-speed oscillator or an external crystal up to 20 MHz. The device maintains full peripheral functionality-including ADC conversions and UART transmission-at this speed, as verified in Renesas User's Manual U17854EJ9V0UD Section 3.1.1.
Does the UPD78F1142GK(R)-GAJ-AX support in-circuit debugging?
Yes, the UPD78F1142GK(R)-GAJ-AX supports full in-circuit debugging via the on-chip debug interface. It is compatible with the QB-MINI2 on-chip debug emulator (document U18371E) and ID78K0R-QB integrated debugger. Debug features include breakpoint setting, register inspection, and real-time memory access-enabling rapid firmware validation without requiring external JTAG adapters.
What is the Flash memory endurance specification for the UPD78F1142GK(R)-GAJ-AX?
The UPD78F1142GK(R)-GAJ-AX features 128 KB of on-chip Flash memory based on SuperFlash® technology, rated for 100,000 write/erase cycles per sector. Data retention is guaranteed for ≥20 years at 85°C. These values are specified in Renesas' electrical characteristics tables and confirmed in the Flash programming documentation PG-FP4 User's Manual (U15260E).
Can the UPD78F1142GK(R)-GAJ-AX operate at 3.3 V?
No, the UPD78F1142GK(R)-GAJ-AX is not rated for 3.3 V operation. Its absolute maximum ratings and functional specifications require a supply voltage between 4.0 V and 5.5 V. Attempting operation below 4.0 V may result in undefined behavior, including failed ADC conversions, unstable oscillator operation, or incomplete Flash programming sequences.
How many ADC input channels does the UPD78F1142GK(R)-GAJ-AX support?
The UPD78F1142GK(R)-GAJ-AX supports 24 analog input channels for its 10-bit successive approximation ADC. These channels are mapped across ports P2, P4, P5, and P12, with selectable sampling times and hardware-triggered scan mode. Channel assignment and conversion sequence are fully configurable via the ADPC and ADM0 registers, as detailed in Renesas User's Manual U17854EJ9V0UD Section 2.2.2 through 2.2.9.
UPD78F1142GK(R)-GAJ-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 50
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1142GK(R)-GAJ-AX FAQ
1.How can I place an order for UPD78F1142GK(R)-GAJ-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1142GK(R)-GAJ-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 UPD78F1142GK(R)-GAJ-AX reliable?
The price and inventory of UPD78F1142GK(R)-GAJ-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1142GK(R)-GAJ-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1142GK(R)-GAJ-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1142GK(R)-GAJ-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1142GK(R)-GAJ-AX?
UPD78F1142GK(R)-GAJ-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1142GK(R)-GAJ-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 UPD78F1142GK(R)-GAJ-AX?
For technical support, including UPD78F1142GK(R)-GAJ-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1142GK(R)-GAJ-AX requirements.
6.How does Aetrix verify that UPD78F1142GK(R)-GAJ-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1142GK(R)-GAJ-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 UPD78F1142GK(R)-GAJ-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1142GK(R)-GAJ-AX?
All UPD78F1142GK(R)-GAJ-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1142GK(R)-GAJ-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 UPD78F1142GK(R)-GAJ-AX part is unused and in its original packaging.
Return procedure for UPD78F1142GK(R)-GAJ-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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