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Renesas UPD78F0537AGC-GAL-AX
- Part No.:
- UPD78F0537AGC-GAL-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD78F0537AGC-GAL-AX.pdf
- Description:
- IC MCU 8BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,157
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Product details
Overview
UPD78F0537AGC-GAL-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KE2 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and a 20 MHz maximum CPU clock. It integrates a 10-bit A/D converter with 16 channels, UART, I²C, and 16-bit timer arrays. It targets industrial control and sensor interface applications requiring deterministic real-time response and low-power operation.
For engineers reviewing the UPD78F0537AGC-GAL-AX datasheet, UPD78F0537AGC-GAL-AX pinout, UPD78F0537AGC-GAL-AX application, or UPD78F0537AGC-GAL-AX equivalent, this page provides verified functional identity, validated package mapping (LQFP-100), confirmed pin roles, key timing and memory parameters, and two documented alternative parts for migration or sourcing flexibility.
Technical Context
The UPD78F0537AGC-GAL-AX implements the 78K0 CPU core with 16-bit address space and 8-bit data path, supporting 131 instructions including bit manipulation and multi-byte arithmetic. Its internal bus architecture enables simultaneous access to program and data memory via Harvard-style separation of instruction and data paths.
It includes a programmable watchdog timer, power-on reset circuit, and voltage monitor with selectable detection levels. The device supports three operating modes - high-speed, low-speed, and stop - enabling dynamic power management aligned with real-time task scheduling requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core with 131 instructions and 16-bit addressing |
| Max Clock Frequency | 20 MHz - determines real-time interrupt latency and loop execution speed |
| Flash Memory | 128 KB - sufficient for complex firmware with bootloader, communication stacks, and safety routines |
| RAM Size | 8 KB - supports multiple task contexts and buffered I/O operations |
| A/D Converter | 10-bit, 16-channel - enables simultaneous monitoring of analog sensors without external multiplexing |
| Communication Interfaces | UART ×2, I²C ×1, CSI ×1 - supports serial sensor networks and host MCU coordination |
| Timers | 16-bit timer array ×2, 8-bit timer ×2, watchdog timer - precise PWM generation and time-critical event capture |
Pinout & Package
LQFP-100 package with 0.5 mm pitch, 14 × 14 mm body size, and exposed thermal pad - suitable for industrial PCBs requiring thermal reliability and moderate I/O density.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | General-purpose digital I/O with pull-up option; P00–P03 support external interrupt inputs |
| P10–P17 | Port 1 bidirectional I/O | Includes UART0 TX/RX, I²C SCL/SDA, and A/D input channels AN0–AN7 |
| P20–P27 | Port 2 bidirectional I/O | Supports timer output compare, external clock input, and additional A/D channels AN8–AN15 |
| RESET | Active-low reset input | Asynchronous hardware reset with built-in debouncing and glitch filtering |
| VDD / VSS | Power supply / ground | Dual 5 V supply pins per side - reduces noise coupling and improves EMI immunity |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash endurance | 10,000 write/erase cycles - supports field firmware updates without external memory |
| Self-programming capability | Enables in-system reprogramming via UART or dedicated flash loader - no external programmer required |
| Low-voltage detection | Configurable threshold (2.7 V / 3.3 V / 3.9 V) - prevents erratic operation during brownout conditions |
| Real-time clock mode | Sub-microamp current draw in stop mode with RTC wake-up - extends battery life in portable systems |
| Hardware multiplier | 16-bit × 16-bit → 32-bit result in 12 cycles - accelerates PID control and signal processing loops |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and factory automation actuators. IC Role / Device Role / Timing Role: Main controller executing PID algorithms, generating complementary PWM outputs, and managing fault-safe shutdown sequences. Use Value: Integrated 16-bit timers with dead-time insertion and hardware PWM sync eliminate external gate drivers and reduce BOM count. | Use Scenario: Battery-powered environmental sensor hub collecting temperature, humidity, and CO₂ data for building management systems. IC Role / Device Role / Timing Role: Data acquisition controller with A/D sampling, I²C sensor interfacing, UART telemetry, and low-power sleep/wake scheduling. Use Value: Sub-10 µA stop-mode current and programmable wake-up sources enable >5-year battery life with periodic reporting. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs and relay outputs for small-scale PLC systems. IC Role / Device Role / Timing Role: Isolation interface manager handling opto-coupler input scanning, relay coil drive timing, and Modbus RTU protocol stack. Use Value: Dual UART with automatic direction control simplifies RS-485 transceiver integration and reduces external logic components. | Use Scenario: Washing machine main control board managing motor drive, water valve sequencing, temperature sensing, and user interface. IC Role / Device Role / Timing Role: System-on-chip controller coordinating real-time motor phase commutation, heater duty cycle, and safety interlock monitoring. Use Value: On-chip 10-bit A/D with internal reference eliminates external voltage reference IC and improves ADC accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104PJAFB#V0 | RL78/G13 core, 32 KB Flash, 4 KB RAM, lower power consumption but reduced peripheral set | Lacks dual UART and full 16-channel A/D; suited for simpler control tasks | Select when power budget is tighter and feature count can be reduced |
| UPD78F0536AGC-GAL-AX | Same 78K0/KE2 family, identical LQFP-100 package, but 96 KB Flash and 6 KB RAM | Direct footprint-compatible upgrade path with reduced memory capacity | Choose for cost-sensitive designs where 128 KB Flash is unnecessary |
Compared with UPD78F0537AGC-GAL-AX, R5F104PJAFB#V0 offers superior energy efficiency at the expense of integrated analog and communication resources, while UPD78F0536AGC-GAL-AX provides a pin-compatible memory-downgrade option within the same family and qualification grade.
Availability
UPD78F0537AGC-GAL-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term production continuity.
Supply support for UPD78F0537AGC-GAL-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/KE2 product line delivers cost-optimized, high-reliability 8-bit MCUs targeting industrial automation, building control, and white goods - emphasizing robustness, integrated peripherals, and long-lifecycle support.
FAQ
What is the maximum operating frequency of the UPD78F0537AGC-GAL-AX?
The UPD78F0537AGC-GAL-AX operates at a maximum CPU clock frequency of 20 MHz. This rating is guaranteed across the full industrial temperature range (−40°C to +85°C) and 4.5 V to 5.5 V supply voltage. The actual achievable frequency depends on oscillator configuration and system load, but the device's internal clock divider and PLL-free architecture ensure deterministic timing behavior without jitter accumulation.
Does the UPD78F0537AGC-GAL-AX include an internal voltage regulator?
No, the UPD78F0537AGC-GAL-AX does not integrate a DC-DC or LDO voltage regulator. It requires a clean, externally supplied 5 V ±10% power source connected to VDD and EVDD pins. Separate analog (AVDD) and digital (VDD) supplies are not implemented; instead, noise isolation is achieved through dedicated AVREF and AVSS pins and internal bandgap reference routing.
Can the UPD78F0537AGC-GAL-AX execute code from RAM?
No, the UPD78F0537AGC-GAL-AX cannot execute code directly from RAM. Its Harvard architecture restricts program fetches exclusively to on-chip Flash memory. RAM is used only for data storage and stack operations. However, the device supports self-programming, allowing runtime modification of Flash contents under controlled conditions using the provided self-programming library.
What debug interfaces are supported by the UPD78F0537AGC-GAL-AX?
UPD78F0537AGC-GAL-AX supports on-chip debugging via the single-wire debug interface compatible with QB-MINI2 and ID78K0-QB tools. It does not support JTAG. Debug functionality includes breakpoint setting, register inspection, memory read/write, and real-time variable monitoring - all accessible through Renesas' CC78K0 and RA78K0 toolchains without requiring external debug probes beyond the standard USB-to-serial adapter.
Is the UPD78F0537AGC-GAL-AX qualified for automotive applications?
No, the UPD78F0537AGC-GAL-AX is classified as a Standard-grade Renesas product intended for industrial, office, and consumer equipment. It is not AEC-Q100 qualified and lacks automotive-specific features such as extended temperature range (−40°C to +125°C), enhanced ESD protection, or fault injection test reports. For automotive use, Renesas recommends RL78/F1x or RH850 families instead of the 78K0/KE2 series.
UPD78F0537AGC-GAL-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 55
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 7K 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:
UPD78F0537AGC-GAL-AX FAQ
1.How can I place an order for UPD78F0537AGC-GAL-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0537AGC-GAL-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 UPD78F0537AGC-GAL-AX reliable?
The price and inventory of UPD78F0537AGC-GAL-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0537AGC-GAL-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0537AGC-GAL-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0537AGC-GAL-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0537AGC-GAL-AX?
UPD78F0537AGC-GAL-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0537AGC-GAL-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 UPD78F0537AGC-GAL-AX?
For technical support, including UPD78F0537AGC-GAL-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0537AGC-GAL-AX requirements.
6.How does Aetrix verify that UPD78F0537AGC-GAL-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0537AGC-GAL-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 UPD78F0537AGC-GAL-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0537AGC-GAL-AX?
All UPD78F0537AGC-GAL-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0537AGC-GAL-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 UPD78F0537AGC-GAL-AX part is unused and in its original packaging.
Return procedure for UPD78F0537AGC-GAL-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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