Renesas UPD78F1201MC(S)-CAB-M1-AX
- Part No.:
- UPD78F1201MC(S)-CAB-M1-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
UPD78F1201MC(S)-CAB-M1-AX.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UPD78F1201MC(S)-CAB-M1-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/Ix3 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and integrated peripherals including 10-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 equipment.
For engineers reviewing the UPD78F1201MC(S)-CAB-M1-AX datasheet, UPD78F1201MC(S)-CAB-M1-AX pinout, UPD78F1201MC(S)-CAB-M1-AX application, or UPD78F1201MC(S)-CAB-M1-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), package type (64-pin LQFP), and peripheral compatibility with legacy 78K0R designs.
Technical Context
The UPD78F1201MC(S)-CAB-M1-AX implements the 78K0R CPU core with 16-bit architecture, supporting both 8-bit and 16-bit instructions. It integrates a 10-bit successive-approximation ADC with 16 input channels and programmable sampling time, plus three 16-bit timer arrays (TAU) with capture/compare and PWM output capability.
It features dual voltage domains: EVDD/EVSS for analog peripherals (ADC reference) and VDD/VSS for digital logic. The device supports on-chip debug via dedicated pins and uses SuperFlash® technology licensed from Silicon Storage Technology for reliable Flash programming with automatic erase verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 8/16-bit instruction set and 16 MB address space |
| 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, accessible in single-cycle read/write for real-time control loops |
| ADC Resolution | 10-bit SAR ADC with 16 selectable input channels and configurable conversion clock |
| Max Operating Frequency | 20 MHz system clock with internal high-speed oscillator option (8 MHz ±1%) |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade ambient operation without derating |
Pinout & Package
UPD78F1201MC(S)-CAB-M1-AX is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions conform to the 78K0R/IB3 subgroup specification, supporting full port multiplexing and dedicated debug I/O.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX and I²C SCL/SDA |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs, timer capture inputs, and ADC trigger sources |
| P20–P27 | Port 2 bidirectional I/O | Includes TAU0/1/2 channel outputs, PWM outputs, and serial interface signals |
| AVREF | Analog reference voltage input | Accepts external 2.0–5.5 V reference for ADC full-scale calibration |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or watchdog timeout |
| REGC | Internal regulator capacitor terminal | Connects 1.0 µF ceramic capacitor to stabilize on-chip voltage regulator for analog domain |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with auto-erase | Enables field firmware updates without external programmer; erase granularity per 1 KB sector |
| 16-channel 10-bit ADC | Supports simultaneous sampling across multiple sensors in motor control or power monitoring |
| Dual voltage domain (EVDD/VDD) | Isolates analog noise from digital switching; allows independent power sequencing and low-noise ADC operation |
| Integrated TAU timer arrays | Three 16-bit timer units with 48 compare/capture registers for precise PWM generation and input capture timing |
| Hardware I²C and UART | Reduces CPU overhead for sensor communication and host interface; supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C |
Applications
| Industrial Motor Control | Smart Home Sensor Hub |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM outputs, reading current/voltage feedback via ADC, and communicating status over UART. Use Value: Integrated TAU timers deliver sub-microsecond PWM dead-time control; 10-bit ADC enables accurate current sensing with <±1 LSB INL. | Use Scenario: Aggregating temperature, humidity, and occupancy data from multiple Zigbee/Z-Wave end nodes into a local gateway. IC Role / Device Role / Timing Role: Central coordinator running lightweight protocol stack, managing sensor polling, local decision logic, and USB-to-serial bridge to cloud gateway. Use Value: On-chip 64 KB Flash stores dual firmware images for OTA rollback; hardware UART/I²C reduces host MCU load and latency. |
| Programmable Power Supply | Factory Automation I/O Module |
Use Scenario: Digital control of adjustable DC output voltage/current in benchtop lab PSUs. IC Role / Device Role / Timing Role: Real-time regulation engine interfacing with DAC, ADC, and isolation barriers; handles front-panel buttons, display, and USB-CDC interface. Use Value: Dual voltage domain ensures clean ADC reference during digital switching transients; 20 MHz core sustains 100 kHz control loop update rate. | Use Scenario: DIN-rail mounted remote I/O node collecting 16 digital inputs and driving 8 relay outputs in PLC subsystems. IC Role / Device Role / Timing Role: Deterministic I/O processor with cyclic polling, debounce filtering, and Modbus RTU over RS-485. Use Value: Hardware UART with automatic half-duplex direction control simplifies RS-485 implementation; 4 KB RAM buffers Modbus transaction state across multiple slaves. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLAFB#30 | RL78/G13-based; lower power (1.8–5.5 V), 32 KB Flash, no TAU but has GPT timer | Better suited for battery-powered devices; lacks dedicated PWM waveform generator | Select when ultra-low active current (<120 µA/MHz) and sleep mode optimization are critical |
| UPD78F1203MC(S)-CAB-M1-AX | Same 78K0R/IB3 family; identical pinout and package, but with 128 KB Flash and 6 KB RAM | Direct upgrade path for larger firmware or additional data logging buffer | Select when firmware size exceeds 64 KB or extended RAM for complex state machines is required |
Compared with UPD78F1201MC(S)-CAB-M1-AX, R5F100PLAFB#30 offers superior energy efficiency but reduced PWM precision and peripheral integration, while UPD78F1203MC(S)-CAB-M1-AX provides seamless pin-compatible scalability in Flash and RAM without layout changes.
Availability
UPD78F1201MC(S)-CAB-M1-AX is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor hubs, programmable power supplies, and factory automation I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for UPD78F1201MC(S)-CAB-M1-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 automotive, industrial, and IoT markets.
The 78K0R/Ix3 product line delivers cost-optimized 16-bit MCUs with enhanced Flash reliability and mixed-signal integration for legacy-compatible embedded control in industrial and consumer applications.
FAQ
What is the maximum operating frequency of the UPD78F1201MC(S)-CAB-M1-AX?
The UPD78F1201MC(S)-CAB-M1-AX supports a maximum system clock frequency of 20 MHz. This is achievable using the internal high-speed oscillator (8 MHz ±1%) with PLL multiplication or an external crystal up to 20 MHz. At this speed, the 78K0R core executes instructions with single-cycle access to on-chip RAM and two-cycle access to Flash memory, enabling deterministic real-time response in control applications.
Does the UPD78F1201MC(S)-CAB-M1-AX support in-circuit debugging?
Yes, the UPD78F1201MC(S)-CAB-M1-AX supports on-chip debugging via dedicated pins (BKGD, RESN, and optional TDI/TDO) compatible with Renesas QB-MINI2 and QB-78K0RIX3 emulators. Debug functionality includes breakpoint setting, register inspection, memory read/write, and real-time trace - all without requiring external debug headers or special boot modes, as the debug interface is integrated into the silicon.
What is the Flash memory endurance specification for the UPD78F1201MC(S)-CAB-M1-AX?
The UPD78F1201MC(S)-CAB-M1-AX specifies 100,000 write/erase cycles for its 64 KB on-chip Flash memory, with guaranteed 10-year data retention at +85°C. This endurance is validated under Renesas' standard qualification test conditions and applies to all sectors. Sector-wise erase (1 KB granularity) allows firmware updates without disturbing active code regions, supporting robust field upgrade implementations.
Can the UPD78F1201MC(S)-CAB-M1-AX operate from a 3.3 V supply?
Yes, the UPD78F1201MC(S)-CAB-M1-AX operates across a supply voltage range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. At 3.3 V, it maintains full functionality including 20 MHz operation, ADC performance (10-bit resolution, ±1 LSB INL), and all peripheral interfaces. The dual-domain design (VDD and EVDD) ensures analog accuracy is preserved even with digital supply fluctuations typical in 3.3 V rail environments.
How many ADC input channels does the UPD78F1201MC(S)-CAB-M1-AX support?
The UPD78F1201MC(S)-CAB-M1-AX integrates a 10-bit successive-approximation ADC with 16 selectable analog input channels. These channels are mapped across ports P0 through P5 and include dedicated pins for internal temperature sensor and reference voltage monitoring. Channel selection is software-controlled via the ADPC register, and conversions can be triggered by software, timer, or external event - enabling synchronized sampling in multi-sensor applications.
UPD78F1201MC(S)-CAB-M1-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- 78K0R/Ix3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- 78K/0R
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 6x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1201MC(S)-CAB-M1-AX FAQ
1.How can I place an order for UPD78F1201MC(S)-CAB-M1-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1201MC(S)-CAB-M1-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 UPD78F1201MC(S)-CAB-M1-AX reliable?
The price and inventory of UPD78F1201MC(S)-CAB-M1-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1201MC(S)-CAB-M1-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1201MC(S)-CAB-M1-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1201MC(S)-CAB-M1-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1201MC(S)-CAB-M1-AX?
UPD78F1201MC(S)-CAB-M1-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1201MC(S)-CAB-M1-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 UPD78F1201MC(S)-CAB-M1-AX?
For technical support, including UPD78F1201MC(S)-CAB-M1-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1201MC(S)-CAB-M1-AX requirements.
6.How does Aetrix verify that UPD78F1201MC(S)-CAB-M1-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1201MC(S)-CAB-M1-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 UPD78F1201MC(S)-CAB-M1-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1201MC(S)-CAB-M1-AX?
All UPD78F1201MC(S)-CAB-M1-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1201MC(S)-CAB-M1-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 UPD78F1201MC(S)-CAB-M1-AX part is unused and in its original packaging.
Return procedure for UPD78F1201MC(S)-CAB-M1-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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