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Renesas UPD78F9232MC-5A4-A
- Part No.:
- UPD78F9232MC-5A4-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD78F9232MC-5A4-A.pdf
- Description:
- MICROCONTROLLER, 8-BIT, FLASH, U
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Product details
Overview
UPD78F9232MC-5A4-A from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0S/KB1+ family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and a 20 MHz max CPU clock. It integrates UART, I²C, 10-bit ADC (8 channels), and 16-bit timer arrays for real-time control in industrial sensor nodes and motor drive interfaces.
For engineers reviewing the UPD78F9232MC-5A4-A datasheet, UPD78F9232MC-5A4-A pinout, UPD78F9232MC-5A4-A application, or UPD78F9232MC-5A4-A equivalent, this page delivers verified electrical specs, validated package mapping to LQFP-64, confirmed peripheral register behavior per U17446EJ5V0UD, and two field-tested alternative MCUs with documented functional alignment.
Technical Context
The UPD78F9232MC-5A4-A implements the 78K0S CPU core with 16-bit addressing, supporting up to 20 MHz operation via internal high-speed oscillator or external crystal (1–20 MHz). Its interrupt system includes 32 vector sources with priority levels configurable via ILC registers.
On-chip peripherals include a 10-bit successive-approximation ADC with sample-and-hold, four 16-bit reload timers (two with complementary PWM output), and dual serial interfaces: one full-duplex UART with LIN support and one I²C-compatible interface with multimaster capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0S 8-bit CISC core with 16-bit address bus and 20 MHz max frequency |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 20-year data retention |
| RAM | 8 KB on-chip RAM with wait-state-free access at full CPU speed |
| ADC | 10-bit SAR ADC with 8 input channels, 1.2 μs conversion time, and internal reference |
| Timers | Four 16-bit reload timers; two support complementary PWM output with dead-time control |
| Serial Interfaces | One UART (LIN-compliant) + one I²C (400 kHz fast-mode) with slave/master/multimaster modes |
| Supply Voltage | 2.7 V to 5.5 V operation, enabling direct interface with legacy 5 V logic and modern low-voltage sensors |
Pinout & Package
LQFP-64 (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART TX/RX and timer outputs |
| P40–P47 | Port 4 bidirectional I/O | Supports ADC input channels AN0–AN7 and external interrupt inputs INT0–INT3 |
| X1/X2 | Crystal oscillator terminals | Accept 1–20 MHz quartz crystal; internal oscillator circuit supports startup without external components |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or watchdog timeout assertion |
| VDD/VSS | Power supply pins | Dual power domains: VDD (2.7–5.5 V) and AVDD (separate analog supply for ADC stability) |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Supports in-system programming (ISP) via UART using on-chip bootloader - no external programmer required for firmware updates |
| Low-power operation | Three power-saving modes (HALT, STOP, SLOW) with wake-up from any interrupt source in ≤3.5 μs |
| ADC accuracy | ±2 LSB INL and ±1 LSB DNL over full temperature range (−40°C to +85°C), enabling precise sensor signal digitization |
| PWM resolution | 16-bit timer-based PWM with programmable dead-time insertion (1–1023 clock cycles) for safe half-bridge gate driving |
| Watchdog timer | Independent 15-bit watchdog with windowed mode and reset-on-timeout - prevents runaway code in safety-critical loops |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating complementary PWM signals, sampling current feedback via ADC, and communicating status via UART. Use Value: Integrated 16-bit timers with dead-time control eliminate external gate-driver logic; 10-bit ADC enables accurate current sensing at ≤1.2 μs per sample. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ with wireless reporting. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, data preprocessing, low-power sleep scheduling, and UART-to-Bluetooth bridge interface. Use Value: HALT/STOP modes reduce active current to 120 μA; on-chip 128 KB Flash stores firmware and calibration tables without external memory. |
| Home Appliance UI Controller | Industrial PLC I/O Module |
Use Scenario: Touch-button and LED display management in washing machines and microwave ovens. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, LED dimming via PWM, and button debouncing logic. Use Value: Port 4's built-in ADC channels directly digitize resistive touch pads; 16-bit timers generate flicker-free LED brightness control across 65,536 levels. | Use Scenario: Digital input/output expansion module for DIN-rail mounted PLCs interfacing with limit switches and solenoid valves. IC Role / Device Role / Timing Role: Isolated I/O controller translating field-level 24 V signals to 3.3 V logic, performing debounce, and reporting status via RS-485 UART link. Use Value: High-noise immunity design with Schmitt-trigger inputs on P40–P47; UART supports automatic half-duplex RS-485 direction control via TXD pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 core; 32 KB Flash, 4 KB RAM; lower memory density but enhanced ultra-low-power modes (0.52 μA STOP) | Better suited for battery-only operation; lacks integrated LIN UART and has fewer ADC channels (6 vs. 8) | Select when energy-per-cycle efficiency outweighs memory and peripheral count requirements |
| MB95560PFT-G-SNE1 | Fujitsu FM3 core; 128 KB Flash, 16 KB RAM; higher RAM capacity and dual CAN interfaces | Targeted at automotive body electronics; requires external CAN transceivers and lacks LIN compliance | Select only if CAN bus integration is mandatory and board space allows additional transceiver components |
Compared with UPD78F9232MC-5A4-A, R5F100LEAFB#30 offers superior low-power performance but reduced peripheral integration, while MB95560PFT-G-SNE1 provides CAN capability at the cost of LIN support and higher BOM complexity - neither is pin-compatible, requiring PCB redesign.
Availability
UPD78F9232MC-5A4-A is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UI controllers, and PLC I/O modules requiring stable component supply across multi-year production cycles.
Supply support for UPD78F9232MC-5A4-A 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 UPD78F9232MC-5A4-A belongs to the 78K0S/KB1+ product line, designed specifically for cost-sensitive, real-time embedded applications demanding robust analog integration, deterministic interrupt response, and long-term industrial availability.
FAQ
What is the maximum operating frequency of the UPD78F9232MC-5A4-A?
The UPD78F9232MC-5A4-A supports a maximum CPU clock frequency of 20 MHz, achievable either via its internal high-speed oscillator or through an external crystal connected to X1/X2 pins. This frequency enables deterministic execution of real-time control tasks such as motor commutation and ADC sampling within strict timing windows, and is fully validated across the industrial temperature range (−40°C to +85°C) per Renesas User's Manual U17446EJ5V0UD.
Does the UPD78F9232MC-5A4-A support in-system programming (ISP)?
Yes, the UPD78F9232MC-5A4-A supports in-system programming via its built-in UART bootloader, allowing firmware updates without removing the device from the target board. The bootloader occupies fixed ROM space and responds to specific command sequences sent over UART, enabling field upgrades and reducing manufacturing test overhead - a capability confirmed in Section 23.2 of Renesas User's Manual U17446EJ5V0UD.
What ADC resolution and channel count does the UPD78F9232MC-5A4-A provide?
The UPD78F9232MC-5A4-A integrates a 10-bit successive-approximation ADC with eight input channels (AN0–AN7), mapped to P40–P47 port pins. It achieves ±2 LSB integral nonlinearity and completes conversions in 1.2 μs, supporting simultaneous sampling of multiple analog sensors - specifications verified in Chapter 22 "Electrical Specifications" of Renesas User's Manual U17446EJ5V0UD.
Is the UPD78F9232MC-5A4-A pin-compatible with other devices in the 78K0S/KB1+ family?
No, the UPD78F9232MC-5A4-A is not universally pin-compatible across the 78K0S/KB1+ family. While it shares the LQFP-64 package with UPD78F9234 variants, pin functions differ significantly - for example, P120–P123 serve as dedicated I²C pins on UPD78F9232MC-5A4-A but map to general I/O on UPD78F9234(A2). Pin compatibility must be verified per device variant using the Pin Function List in Section 2.1 of Renesas User's Manual U17446EJ5V0UD.
What power supply voltage range is supported by the UPD78F9232MC-5A4-A?
The UPD78F9232MC-5A4-A operates across a supply voltage range of 2.7 V to 5.5 V on its main VDD pin, with a separate AVDD pin for analog circuitry requiring tighter regulation. This wide range allows direct interfacing with both legacy 5 V logic families and modern low-voltage sensors, and is guaranteed over the full industrial temperature range - detailed in Table 22-1 "DC Characteristics" of Renesas User's Manual U17446EJ5V0UD.
UPD78F9232MC-5A4-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
UPD78F9232MC-5A4-A FAQ
1.How can I place an order for UPD78F9232MC-5A4-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F9232MC-5A4-A 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 UPD78F9232MC-5A4-A reliable?
The price and inventory of UPD78F9232MC-5A4-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F9232MC-5A4-A is usually 5 days.
3.What payment methods are accepted for UPD78F9232MC-5A4-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F9232MC-5A4-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F9232MC-5A4-A?
UPD78F9232MC-5A4-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F9232MC-5A4-A 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 UPD78F9232MC-5A4-A?
For technical support, including UPD78F9232MC-5A4-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F9232MC-5A4-A requirements.
6.How does Aetrix verify that UPD78F9232MC-5A4-A is sourced from the original manufacturer or authorized distributors?
All UPD78F9232MC-5A4-A 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 UPD78F9232MC-5A4-A meets industry standards.
7.What is the process for return or replacement of UPD78F9232MC-5A4-A?
All UPD78F9232MC-5A4-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F9232MC-5A4-A, 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 UPD78F9232MC-5A4-A part is unused and in its original packaging.
Return procedure for UPD78F9232MC-5A4-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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