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Renesas UPD78F1225GB-GAG-AX
- Part No.:
- UPD78F1225GB-GAG-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
UPD78F1225GB-GAG-AX.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,154
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Product details
Overview
UPD78F1225GB-GAG-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/Ix3 family, featuring 256 KB on-chip Flash memory, 24 KB RAM, and integrated peripherals including 12-bit ADC, UART, I²C, and timer modules. It operates at up to 20 MHz with supply voltage range of 2.7 V to 5.5 V and targets embedded control in industrial and consumer applications.
For engineers reviewing the UPD78F1225GB-GAG-AX datasheet, UPD78F1225GB-GAG-AX pinout, UPD78F1225GB-GAG-AX application, or UPD78F1225GB-GAG-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with RoHS and JEDEC JESD22-A114 reliability standards.
Technical Context
The UPD78F1225GB-GAG-AX implements the 78K0R CPU core with 16-bit architecture, supporting both 8-bit and 16-bit instructions. It integrates a 12-bit successive-approximation ADC with 16 input channels and programmable sampling time, alongside three 16-bit timer arrays (TAU) with capture/compare and PWM output capability.
It features dual voltage regulators (core and I/O), low-power modes (HALT, STOP, and SNOOZE), and on-chip debug support via single-wire interface. The device uses SuperFlash® technology licensed from Silicon Storage Technology for reliable Flash programming and data retention over 20 years at 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 8/16-bit instruction set compatibility and 2.7–5.5 V operation |
| Flash Memory | 256 KB on-chip Flash with 100,000 write/erase cycles and 20-year data retention at 85°C |
| RAM Size | 24 KB on-chip SRAM for real-time variable storage and stack management |
| ADC Resolution | 12-bit successive-approximation ADC with 16-channel multiplexing and ±1 LSB INL |
| Operating Temp | −40°C to +85°C ambient range, qualified per JEDEC JESD22-A104 for thermal cycling |
| Package Type | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad |
| Clock Source | Internal high-speed oscillator (20 MHz ±2%), external crystal (1–20 MHz), or sub-clock (32.768 kHz) |
Pinout & Package
The UPD78F1225GB-GAG-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | 8-bit general-purpose port with selectable pull-up, interrupt-on-change, and peripheral function multiplexing |
| P10–P17 | Port 1 bidirectional I/O | 8-bit port supporting UART0 TX/RX, I²C SCL/SDA, and timer input capture functions |
| P20–P27 | Port 2 bidirectional I/O | 8-bit port with ADC input channel mapping (AN0–AN7) and comparator inputs |
| P30–P33 | Port 3 bidirectional I/O | 4-bit port supporting TAU0/1/2 channel outputs and external interrupt inputs (INTP0–INTP3) |
| VDD / EVDD | Power supply pins | Dual-supply configuration: VDD (core, 2.7–3.6 V), EVDD (I/O, 2.7–5.5 V) for mixed-voltage interfacing |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or watchdog timeout assertion |
| REGC | Regulator capacitor terminal | Connects 1.0 µF ceramic capacitor to stabilize internal voltage regulator output for core logic |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Debug Interface | Single-wire on-chip debug (SWD) enables real-time code execution control and register inspection without dedicated debug pins |
| Low-Power Operation | Halt mode consumes ≤1.2 µA at 3.3 V; STOP mode retains RAM and resets peripherals while disabling CPU clock |
| ADC Flexibility | Programmable conversion start triggers (software, timer, external event) and configurable sample-and-hold timing for sensor signal integrity |
| Peripheral Multiplexing | Each I/O pin supports ≥3 alternate functions (e.g., UART, I²C, TAU, ADC), reducing external component count in space-constrained designs |
| Flash Security | Read-out protection (ROP) and flash lock bits prevent unauthorized firmware extraction or reprogramming in deployed systems |
Applications
| Industrial Motor Control | Smart Home Hub |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and factory automation drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation via TAU modules, and sampling current/voltage sensors via 12-bit ADC. Use Value: 20 MHz CPU throughput and deterministic interrupt latency (<1.2 µs) ensure precise commutation timing and real-time fault response within 5 µs. | Use Scenario: Central coordination unit aggregating Zigbee, BLE, and wired sensor data in residential energy management systems. IC Role / Device Role / Timing Role: Host MCU handling protocol translation, local decision logic, and secure OTA update staging using on-chip Flash partitioning. Use Value: Dual-voltage I/O (EVDD up to 5.5 V) interfaces directly with legacy 5 V sensors and actuators without level shifters. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
Use Scenario: Portable blood glucose meter with analog front-end signal conditioning and LCD display driver. IC Role / Device Role / Timing Role: Signal acquisition controller acquiring calibrated photodiode readings via ADC, performing linearization, and driving segment LCD via built-in LCD controller. Use Value: Integrated 12-bit ADC with ±1 LSB INL and programmable gain amplifier eliminates external signal-chain ICs, reducing BOM cost by $0.32/unit. | Use Scenario: Door module managing window lift, mirror fold, and interior lighting in entry-level passenger vehicles. IC Role / Device Role / Timing Role: Dedicated body controller executing LIN slave communication, PWM dimming for LEDs, and wake-up detection via GPIO interrupts. Use Value: −40°C to +85°C qualification and automotive-grade ESD tolerance (±8 kV HBM) meet ISO 10605 requirements without external protection components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10PLGJSP#V0 | RL78/G14-based; 128 KB Flash, 16 KB RAM, lower max clock (32 MHz), no on-chip EEPROM | Targets cost-sensitive applications where Flash size and ADC resolution are less critical | Select when migrating to newer RL78 platform with toolchain continuity and lower power in STOP mode (0.52 µA) |
| MB9BF516RPMC | Fujitsu FM3-based; 512 KB Flash, 64 KB RAM, Cortex-M3 core, higher performance but larger footprint | Suitable for applications requiring RTOS support and Ethernet connectivity not available in 78K0R | Choose when needing ARM ecosystem compatibility and >200 DMIPS processing for complex control loops |
Compared with R5F10PLGJSP#V0 and MB9BF516RPMC, the UPD78F1225GB-GAG-AX delivers optimal balance of Flash density (256 KB), analog integration (12-bit ADC + comparator), and industrial temperature support in a mature, production-proven 100-pin LQFP package-making it ideal for long-lifecycle embedded systems where design stability outweighs raw performance gains.
Availability
UPD78F1225GB-GAG-AX is available at Aetrix Electronics and suitable for industrial motor control, smart home hubs, medical diagnostic equipment, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for UPD78F1225GB-GAG-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 IoT markets.
The UPD78F1225GB-GAG-AX belongs to the 78K0R/Ix3 product line, designed specifically for cost-effective, high-integration 16-bit embedded control in resource-constrained industrial and consumer applications.
FAQ
What is the maximum operating frequency of the UPD78F1225GB-GAG-AX?
The UPD78F1225GB-GAG-AX supports a maximum CPU clock frequency of 20 MHz using its internal high-speed oscillator or an external crystal source. This frequency is fully supported across the full operating voltage range (2.7 V to 5.5 V) and temperature range (−40°C to +85°C), enabling deterministic real-time control in industrial environments without derating.
Does the UPD78F1225GB-GAG-AX include on-chip debug capability?
Yes, the UPD78F1225GB-GAG-AX integrates a single-wire on-chip debug (SWD) interface compliant with Renesas' standard debug protocol. This allows full visibility into CPU registers, memory, and peripheral states during development using tools like ID78K0R-QB, without requiring additional debug pins or external hardware emulators.
What is the Flash memory endurance specification for the UPD78F1225GB-GAG-AX?
The UPD78F1225GB-GAG-AX provides 100,000 write/erase cycles for its 256 KB on-chip Flash memory, verified per JEDEC JESD22-A117. Data retention is guaranteed for 20 years at 85°C ambient, making it suitable for field-upgradable firmware in long-lifecycle industrial deployments where frequent reprogramming is required.
How does the UPD78F1225GB-GAG-AX handle power supply separation between core and I/O domains?
The UPD78F1225GB-GAG-AX uses dual-supply architecture: VDD powers the core logic (2.7–3.6 V), while EVDD supplies I/O ports (2.7–5.5 V). This allows direct interfacing with 5 V peripherals without external level shifters and improves noise immunity by isolating sensitive analog/digital domains-critical for mixed-signal applications such as motor control and sensor fusion.
Is the UPD78F1225GB-GAG-AX qualified for automotive applications?
No, the UPD78F1225GB-GAG-AX is rated for Standard quality grade per Renesas' classification and is intended for industrial, consumer, and office equipment-not automotive safety-critical systems. While it operates across −40°C to +85°C and meets AEC-Q100 stress test conditions in some configurations, it lacks formal automotive qualification documentation and is not recommended for ASIL-B or higher applications without additional system-level validation.
UPD78F1225GB-GAG-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- 78K0R/Ix3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0R
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 11x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1225GB-GAG-AX FAQ
1.How can I place an order for UPD78F1225GB-GAG-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1225GB-GAG-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 UPD78F1225GB-GAG-AX reliable?
The price and inventory of UPD78F1225GB-GAG-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1225GB-GAG-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1225GB-GAG-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1225GB-GAG-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1225GB-GAG-AX?
UPD78F1225GB-GAG-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1225GB-GAG-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 UPD78F1225GB-GAG-AX?
For technical support, including UPD78F1225GB-GAG-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1225GB-GAG-AX requirements.
6.How does Aetrix verify that UPD78F1225GB-GAG-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1225GB-GAG-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 UPD78F1225GB-GAG-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1225GB-GAG-AX?
All UPD78F1225GB-GAG-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1225GB-GAG-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 UPD78F1225GB-GAG-AX part is unused and in its original packaging.
Return procedure for UPD78F1225GB-GAG-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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