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Renesas UPD78F0525AGB-GAG-AX
- Part No.:
- UPD78F0525AGB-GAG-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
UPD78F0525AGB-GAG-AX.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,918
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Product details
Overview
UPD78F0525AGB-GAG-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KD2 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 16-bit timer/counter with PWM output capability. It operates at up to 20 MHz using an internal high-speed oscillator or external crystal, supports 10-bit A/D conversion across 16 channels, and targets embedded control applications requiring deterministic real-time response and low-power operation.
For engineers reviewing the UPD78F0525AGB-GAG-AX datasheet, UPD78F0525AGB-GAG-AX pinout, UPD78F0525AGB-GAG-AX application, or UPD78F0525AGB-GAG-AX equivalent, key selection criteria include its 64-pin LQFP package, integrated voltage regulator (REGC pin), reset circuitry with built-in watchdog timer, and support for in-system programming via on-chip bootloader.
Technical Context
The UPD78F0525AGB-GAG-AX implements the 78K0 CPU core with 16-bit ALU, 16-level hardware stack, and instruction set optimized for compact code size and fast interrupt handling. It integrates peripheral functions including UART (2 channels), I²C bus interface, 16-bit reload timers (TMRh/TMRl), and a 10-bit A/D converter with sample-and-hold and automatic channel scanning.
Its clock system supports multiple sources: internal high-speed oscillator (1–20 MHz), external crystal (1–20 MHz), or external clock input. The device includes power management features such as HALT and STOP modes, with wake-up capability from all interrupts and reset sources, enabling low-power sensor node and battery-operated control designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0 8-bit CPU with 16-bit ALU and 16-level hardware stack |
| Flash Memory | 64 KB on-chip Flash with 100,000 write/erase cycles and 20-year data retention |
| RAM Size | 4 KB on-chip RAM for variables, stack, and temporary buffers |
| Max Operating Frequency | 20 MHz - enables real-time control loop execution within ≤50 ns per instruction cycle |
| A/D Converter | 10-bit resolution, 16-channel input, conversion time ≤1.2 μs per sample |
| Timer Resources | Two 16-bit reload timers (TMRh/TMRl) with PWM output, capture/compare, and interval timing |
| I/O Pins | 54 CMOS bidirectional I/O pins with programmable pull-up resistors and noise immunity filtering |
| Supply Voltage | 2.7 V to 5.5 V - supports direct connection to industrial 3.3 V or legacy 5 V rails without level-shifting |
Pinout & Package
UPD78F0525AGB-GAG-AX is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow Renesas' standard 78K0/KD2 layout, supporting full peripheral access and dedicated reset/power management terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, EVDD | Power supply inputs | VDD powers digital logic; EVDD supplies analog peripherals and A/D reference - separation reduces noise coupling into sensitive analog paths |
| VSS, EVSS | Ground returns | VSS for digital ground; EVSS for analog ground - independent return paths prevent ground bounce from corrupting A/D results |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers, halts program execution, and initializes I/O ports to default state |
| REGC | Internal regulator control | Connects external capacitor to stabilize on-chip voltage regulator output for internal logic and flash programming |
| P00–P06 | Port 0 I/O pins | Bi-directional general-purpose I/O with selectable pull-up; P00–P03 also serve as UART0 TX/RX and I²C SDA/SCL |
| P10–P17 | Port 1 I/O pins | Support timer capture/compare, A/D input channels AD0–AD7, and external interrupt sources INT0–INT3 |
| P40–P47 | Port 4 I/O pins | Provide second UART (UART1), additional A/D inputs AD8–AD15, and PWM output signals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with self-programming | Enables field firmware updates and parameter storage without external programmer; supports erase/write of 128-byte blocks |
| Dedicated A/D reference pins (AVREF/AVSS) | Allows external precision reference voltage to be applied, improving A/D accuracy beyond internal VDD-referenced operation |
| Hardware watchdog timer (WDT) | Independent clock source ensures reliable system recovery from software hang without CPU intervention |
| Low-power STOP mode | Reduces current consumption to ≤1.5 μA while retaining RAM contents and enabling wake-up via external interrupt or reset |
| Programmable noise filter on I/O pins | Configurable digital filter suppresses glitches <100 ns, eliminating need for external RC debouncing in switch or encoder interfaces |
| Integrated voltage regulator control (REGC) | Single external capacitor stabilizes internal 3.3 V regulator - simplifies power design and eliminates need for discrete LDO |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Primary controller executing PID algorithm, generating 3-phase PWM outputs, sampling current/voltage feedback, and communicating status via UART. Use Value: Integrated 16-bit timers with complementary PWM outputs and fast A/D enable precise phase alignment and current sensing within 1.2 μs per sample. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless reporting. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, data preprocessing, low-power scheduling, and UART-to-Bluetooth bridge. Use Value: STOP mode current ≤1.5 μA and wake-up from A/D conversion event extend battery life to >2 years on two AA cells. |
| Home Appliance UI Controller | Factory Automation I/O Module |
Use Scenario: Touch-button and LED display interface for washing machine control panel with real-time status feedback. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scan, LED dimming via PWM, buzzer tone generation, and button debounce. Use Value: 54 GPIO with programmable pull-ups and built-in noise filters eliminate external components for robust front-panel operation in EMI-heavy environments. | Use Scenario: DIN-rail mounted digital I/O expansion module interfacing PLCs with field sensors and actuators. IC Role / Device Role / Timing Role: Protocol-agnostic I/O concentrator with isolated inputs, relay drivers, and Modbus RTU over RS-485. Use Value: Dual UART with hardware flow control and 16-channel A/D allow simultaneous serial communication and analog monitoring without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102BAASP#V0 | RL78/G13-based; 32 KB Flash, 4 KB RAM, lower max frequency (24 MHz vs 20 MHz), integrated LIN transceiver | Better suited for automotive body electronics with LIN bus requirement; lacks REGC pin and dedicated analog ground separation | Select when LIN physical layer integration and lower cost outweigh need for 64 KB Flash and dual A/D reference domains |
| UPD78F0535AGB-GAG-AX | Same 78K0/KD2 family; 96 KB Flash, 6 KB RAM, identical pinout and peripheral set | Direct upgrade path for applications needing larger firmware image or extended data logging buffer | Choose when future firmware growth or runtime data buffering exceeds 64 KB Flash or 4 KB RAM capacity |
Compared with R5F102BAASP#V0, UPD78F0525AGB-GAG-AX offers superior analog subsystem isolation and higher Flash density but no LIN support; compared with UPD78F0535AGB-GAG-AX, it provides identical real-time performance and peripheral compatibility at lower cost and power, making it optimal for fixed-function control where memory headroom is sufficient.
Availability
UPD78F0525AGB-GAG-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and home appliance UI controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for UPD78F0525AGB-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The 78K0/KD2 product line delivers cost-optimized, low-power 8-bit MCUs designed for deterministic real-time control in resource-constrained embedded systems, with emphasis on analog integration, robust I/O, and field-programmable Flash.
FAQ
What is the maximum operating frequency of the UPD78F0525AGB-GAG-AX?
The UPD78F0525AGB-GAG-AX supports a maximum operating frequency of 20 MHz when using either the internal high-speed oscillator or an external crystal. This frequency determines the instruction cycle time (50 ns minimum) and directly impacts real-time response latency for timer interrupts, A/D conversions, and PWM updates. All electrical specifications in the datasheet - including A/D conversion time and I/O toggle rate - are validated at this maximum frequency under specified voltage and temperature conditions.
Does the UPD78F0525AGB-GAG-AX include an internal voltage regulator?
Yes, the UPD78F0525AGB-GAG-AX integrates an internal voltage regulator controlled by the REGC pin. An external capacitor connected to REGC stabilizes the regulator output, which powers internal logic and Flash programming circuits. This eliminates the need for an external LDO in many designs, reducing BOM count and PCB area. The regulator is not intended to power external circuitry and must not be loaded beyond its specified current limit.
How many A/D input channels does the UPD78F0525AGB-GAG-AX support?
The UPD78F0525AGB-GAG-AX supports 16 A/D input channels (AD0–AD15), each configurable for single-ended or differential measurement. The 10-bit successive approximation A/D converter achieves ≤1.2 μs conversion time per sample and includes hardware features such as automatic channel scanning, sample-and-hold control, and trigger synchronization with timer events - all accessible without CPU intervention.
Is the UPD78F0525AGB-GAG-AX pin-compatible with other 78K0/KD2 microcontrollers?
Yes, the UPD78F0525AGB-GAG-AX shares the same 64-pin LQFP package and pin assignment with other 78K0/KD2 family members including UPD78F0521AGB-GAG-AX through UPD78F0527AGB-GAG-AX. This allows hardware reuse across variants differing only in Flash size, RAM capacity, or peripheral enablement - provided the target application does not require features disabled in the UPD78F0525AGB-GAG-AX variant.
What development tools are supported for the UPD78F0525AGB-GAG-AX?
The UPD78F0525AGB-GAG-AX is supported by Renesas' RA78K0 assembler, CC78K0 C compiler, QB-MINI2 on-chip debugger, and PM+ integrated development environment. Flash programming is performed via on-chip bootloader using UART or dedicated programming interface, and hardware debugging uses SWD-compatible debug pins. Application notes U17516E (Self Programming) and U17739E (Flash Programming) provide implementation guidance specific to the UPD78F0525AGB-GAG-AX.
UPD78F0525AGB-GAG-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- 78K0/Kx2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0525AGB-GAG-AX FAQ
1.How can I place an order for UPD78F0525AGB-GAG-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0525AGB-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 UPD78F0525AGB-GAG-AX reliable?
The price and inventory of UPD78F0525AGB-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 UPD78F0525AGB-GAG-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0525AGB-GAG-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0525AGB-GAG-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0525AGB-GAG-AX?
UPD78F0525AGB-GAG-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0525AGB-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 UPD78F0525AGB-GAG-AX?
For technical support, including UPD78F0525AGB-GAG-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0525AGB-GAG-AX requirements.
6.How does Aetrix verify that UPD78F0525AGB-GAG-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0525AGB-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 UPD78F0525AGB-GAG-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0525AGB-GAG-AX?
All UPD78F0525AGB-GAG-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0525AGB-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 UPD78F0525AGB-GAG-AX part is unused and in its original packaging.
Return procedure for UPD78F0525AGB-GAG-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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