Renesas UPD78F0587GA-GAM-AX
- Part No.:
- UPD78F0587GA-GAM-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
UPD78F0587GA-GAM-AX.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,393
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Product details
Overview
UPD78F0587GA-GAM-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KC2-L 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 and supports 5 V operation with 64-pin LQFP packaging. It is used in industrial control panels requiring deterministic real-time response and integrated analog peripherals.
For engineers reviewing the UPD78F0587GA-GAM-AX datasheet, UPD78F0587GA-GAM-AX pinout, UPD78F0587GA-GAM-AX application, or UPD78F0587GA-GAM-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), built-in voltage regulator (REGC pin support), and compatibility with RA78K0 assembler toolchain for legacy code migration.
Technical Context
The UPD78F0587GA-GAM-AX implements the 78K0 CPU core with 16-bit address space and supports both internal high-speed oscillator (up to 20 MHz) and external crystal (1–20 MHz). Its clock generator includes PLL circuitry enabling stable system clock derivation without external frequency multipliers.
It integrates 12-bit A/D converter with 16 input channels, serial interface (UART, CSI, I2C), and watchdog timer with independent clock source. Memory protection unit (MPU) enforces code/data separation, and on-chip debug support enables real-time trace via QB-MINI2 emulator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0 8-bit CPU with 16-bit addressing and 109 instruction set |
| Flash Memory | 64 KB on-chip Flash with 100,000 write/erase cycles and 10-year data retention |
| RAM Size | 4 KB on-chip RAM with battery-backup support via VBAT pin |
| Max Operating Frequency | 20 MHz using internal high-speed oscillator or external crystal |
| A/D Converter | 12-bit resolution, 16-channel input, conversion time ≤ 1.2 μs per channel |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant |
| I/O Pins | 54 programmable CMOS I/O pins with individual pull-up/pull-down control |
Pinout & Package
UPD78F0587GA-GAM-AX is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions conform to the 78K0/KC2-L family layout, supporting dual-voltage I/O (5 V tolerant inputs, 5 V output drive) and dedicated analog supply pins (AVREF, AVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: digital (VDD/VSS) and analog (AVDD/AVSS) for noise isolation |
| P00–P07 | Port 0 I/O | 8-bit bi-directional port with alternate functions including UART TX/RX and timer capture inputs |
| P10–P17 | Port 1 I/O | 8-bit port supporting external interrupt inputs (INTP0–INTP7) and A/D trigger signals |
| P20–P27 | Port 2 I/O | 8-bit port with PWM output capability (PWM0–PWM7) and serial interface (CSI, I2C) |
| REGC | Voltage regulator control | Enables internal 5 V regulator for stable core voltage when external VDD varies ±10% |
| X1, XT1 | Crystal oscillator inputs | Supports 1–20 MHz external crystal or ceramic resonator for precise timing |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Self-programmable via on-chip bootloader; no external programmer required for field updates |
| Low-power modes | HALT, STOP, and SNOOZE modes with wake-up latency < 10 μs from external interrupt or timer event |
| Analog integration | 12-bit A/D with hardware averaging (up to 4 samples) and window comparator function |
| Real-time debug | Fully supported by QB-MINI2 emulator with real-time trace, breakpoint, and memory watch capabilities |
| Memory protection | MPU prevents accidental overwrites of critical code or vector table during runtime |
Applications
| Industrial HMI Panel | Motor Control Module |
|---|---|
Use Scenario: Standalone operator interface with keypad, LED indicators, and RS-485 communication in factory automation. IC Role / Device Role / Timing Role: Central controller managing user input scanning, display refresh, and protocol framing at 9.6 kbps UART rate. Use Value: Integrated UART and 54 GPIO eliminate level-shifter ICs and reduce BOM count by two components versus discrete MCU + transceiver solutions. | Use Scenario: Closed-loop speed control of 3-phase BLDC motor in HVAC blower systems. IC Role / Device Role / Timing Role: Real-time PWM generation (6-channel complementary output), current sensing via A/D, and fault detection logic. Use Value: 1.2 μs A/D conversion and synchronized PWM dead-time insertion enable 20 kHz switching with < 1% speed ripple under load transients. |
| Energy Meter Interface | Building Automation Sensor Node |
Use Scenario: Pulse counting and tariff switching logic in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: High-accuracy pulse capture (INTP0–INTP3) with timestamping and EEPROM emulation for tariff log storage. Use Value: Built-in EEPROM emulation library (U18275E) provides 100,000-cycle nonvolatile storage without external serial EEPROM chip. | Use Scenario: Multi-sensor node aggregating temperature, humidity, and occupancy data for BACnet MS/TP gateway. IC Role / Device Role / Timing Role: Sensor signal conditioning, I2C master for local sensors, and UART-to-MS/TP protocol translation. Use Value: Hardware I2C controller with clock stretching support ensures reliable communication with slow-response environmental sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGSP#V0 | RL78/G13 core, 32 KB Flash, 4 KB RAM, lower power (120 μA/MHz), no REGC pin | Lacks integrated voltage regulator; requires external LDO for variable input rails | Select when ultra-low standby current (< 0.5 μA) and USB interface are required |
| UPD78F0588GA-GAM-AX | Same KC2-L family, 64 KB Flash, but adds CAN 2.0B controller and 3 additional I/O pins | Includes CAN physical layer driver support; not pin-compatible due to added CANRX/CANTX pins | Select when CAN bus connectivity is mandatory and PCB layout allows 64-pin footprint revision |
Compared with UPD78F0587GA-GAM-AX, R5F100LGSP#V0 offers superior energy efficiency but removes regulator flexibility, while UPD78F0588GA-GAM-AX extends communication capability at the cost of pinout compatibility-neither is drop-in replaceable, but both serve adjacent design requirements in industrial embedded systems.
Availability
UPD78F0587GA-GAM-AX is available at Aetrix Electronics and suitable for industrial HMI panels, motor control modules, and energy meter interfaces requiring stable component supply across extended production lifecycles.
Supply support for UPD78F0587GA-GAM-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/KC2-L product line delivers cost-optimized 8-bit MCUs targeting legacy industrial equipment upgrades where code compatibility with older 78K0 derivatives and long-term supply assurance are critical design constraints.
FAQ
What is the maximum operating frequency of the UPD78F0587GA-GAM-AX?
The UPD78F0587GA-GAM-AX supports a maximum system clock frequency of 20 MHz. This can be achieved using either the internal high-speed oscillator (with trimming calibration) or an external crystal connected to X1/XT1 pins. The CPU executes instructions at one cycle per clock for most operations, enabling deterministic real-time response in time-critical control loops.
Does the UPD78F0587GA-GAM-AX include on-chip debug capability?
Yes, the UPD78F0587GA-GAM-AX supports full on-chip debugging via the single-wire debug interface compatible with Renesas QB-MINI2 emulator. It enables real-time trace, hardware breakpoints, register inspection, and memory read/write during active execution-no debug monitor firmware is required, and all features operate without consuming user RAM or Flash resources.
Can the UPD78F0587GA-GAM-AX operate from an unregulated 5 V supply?
Yes, the UPD78F0587GA-GAM-AX includes an internal voltage regulator controlled by the REGC pin. When enabled, it maintains stable core voltage across input variations of ±10% on VDD, allowing direct connection to standard 5 V switch-mode supplies without external LDO filtering-this simplifies power design and reduces bill-of-materials cost in cost-sensitive industrial applications.
What development tools are officially supported for the UPD78F0587GA-GAM-AX?
Renesas officially supports the UPD78F0587GA-GAM-AX with RA78K0 Ver. 4.01 assembler, CC78K0 Ver. 4.00 C compiler, ID78K0-QB Ver. 3.00 integrated debugger, and PM+ Ver. 6.30 IDE. These tools are validated against the 78K0/KC2-L hardware specification and include device-specific startup code, peripheral register definitions, and Flash programming algorithms for UPD78F0587GA-GAM-AX.
Is the UPD78F0587GA-GAM-AX qualified for automotive applications?
No, the UPD78F0587GA-GAM-AX is rated as "Standard" quality grade per Renesas documentation and is intended for industrial, office, and consumer equipment-not automotive or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature range (-40°C to +105°C), or failure-in-time (FIT) data required for automotive use; Renesas recommends RL78/F1x series for qualified automotive designs.
UPD78F0587GA-GAM-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- 78K0/Kx2-L
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 10MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 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:
UPD78F0587GA-GAM-AX FAQ
1.How can I place an order for UPD78F0587GA-GAM-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0587GA-GAM-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 UPD78F0587GA-GAM-AX reliable?
The price and inventory of UPD78F0587GA-GAM-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0587GA-GAM-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0587GA-GAM-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0587GA-GAM-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0587GA-GAM-AX?
UPD78F0587GA-GAM-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0587GA-GAM-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 UPD78F0587GA-GAM-AX?
For technical support, including UPD78F0587GA-GAM-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0587GA-GAM-AX requirements.
6.How does Aetrix verify that UPD78F0587GA-GAM-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0587GA-GAM-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 UPD78F0587GA-GAM-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0587GA-GAM-AX?
All UPD78F0587GA-GAM-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0587GA-GAM-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 UPD78F0587GA-GAM-AX part is unused and in its original packaging.
Return procedure for UPD78F0587GA-GAM-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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