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

- Shipping:

Inventory:1,904
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Product details
Overview
UPD78F1201MC(S)-CAB-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 arrays. 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-AX datasheet, UPD78F1201MC(S)-CAB-AX pinout, UPD78F1201MC(S)-CAB-AX application, or UPD78F1201MC(S)-CAB-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), package type (LQFP-64), and peripheral compatibility with legacy 78K0R systems.
Technical Context
The UPD78F1201MC(S)-CAB-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture. It supports multiple clock sources including internal high-speed oscillator (20 MHz), sub-clock (32.768 kHz), and external crystal input.
On-chip peripherals include 12-channel 10-bit ADC with conversion time of 1.1 μs, three 16-bit timer arrays (each with capture/compare/PWM capability), and dual serial interfaces (UART and I²C) with independent baud rate generators and noise filters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 24-bit addressing and 1.15 DMIPS/MHz performance |
| 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 |
| ADC Resolution | 10-bit successive approximation ADC with 12 input channels and hardware trigger capability |
| Operating Voltage | 2.7 V to 5.5 V - enables direct interface with both 3.3 V and 5 V logic systems |
| Max Clock Frequency | 20 MHz - supports real-time control loops with sub-50 ns instruction cycle time |
| Temperature Range | −40°C to +85°C - qualified for industrial ambient environments without derating |
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 |
|---|---|---|
| VDD, EVDD | Power supply inputs | Dual power domains: VDD for digital logic, EVDD for analog/ADC subsystem - enables noise isolation |
| VSS, EVSS | Ground returns | Separate digital and analog ground pins reduce coupling noise into ADC reference path |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or watchdog timeout assertion |
| FLMD0 | Flash mode select | Configures boot mode during power-on reset - determines whether code executes from Flash or ROM |
| P00–P07 | Port 0 I/O | 8-bit bi-directional port with individual direction control and CMOS output drive (max 20 mA sink/source) |
| AVREF | Analog reference input | Accepts external reference voltage (1.5 V to VDD) or connects to internal 2.5 V bandgap reference |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully compliant with QB-MINI2 on-chip debugger - enables real-time trace, breakpoint, and register inspection without ICE hardware |
| Low-power modes | Four modes (HALT, STOP, SNOOZE, IDLE) with wake-up latency < 10 μs from STOP mode using external interrupt or RTC alarm |
| ADC auto-triggering | Hardware synchronization with timer array outputs eliminates software overhead for periodic sampling |
| Watchdog timer | Independent 14-bit down-counter with selectable timeout (32 ms to 2.1 s) and windowed operation for safety-critical monitoring |
| I²C master/slave mode | Supports standard (100 kbps) and fast-mode (400 kbps) with automatic arbitration and clock stretching handling |
Applications
| Industrial Motor Control | Home Appliance MCU |
|---|---|
Use Scenario: Closed-loop speed and current control of BLDC motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Primary system controller executing FOC algorithms, managing PWM generation, and interfacing with Hall sensors and current shunts. Use Value: Integrated 10-bit ADC with hardware trigger and 16-bit timer arrays enable precise 20 kHz PWM carrier frequency with synchronized current sampling - reducing external component count by 3 ICs. | Use Scenario: Main control unit in microwave ovens managing magnetron timing, keypad scanning, display driver, and safety interlocks. IC Role / Device Role / Timing Role: Central MCU coordinating user input, cooking profile execution, thermal monitoring, and relay actuation. Use Value: 64 KB Flash accommodates full cooking algorithm library and firmware updates; −40°C to +85°C rating ensures reliability across kitchen ambient conditions. |
| Smart Power Metering | Factory Automation I/O Module |
Use Scenario: Embedded metering node in DIN-rail mounted energy monitors measuring voltage, current, and power factor. IC Role / Device Role / Timing Role: Data acquisition controller acquiring analog sensor signals, computing RMS values, and communicating via RS-485. Use Value: Dual power domains (VDD/EVDD) and separate analog ground (EVSS) minimize noise coupling into metrology ADC path - achieving < 0.5% measurement error at 50/60 Hz. | Use Scenario: Distributed digital I/O module in PLC backplanes handling 16-channel isolated inputs and 8-channel transistor outputs. IC Role / Device Role / Timing Role: Protocol bridge and local decision engine translating Modbus RTU commands into GPIO state changes with deterministic response. Use Value: On-chip UART with noise filter and hardware FIFO supports robust 9600–115200 bps communication in electrically noisy factory environments without external line drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13-based; 32 KB Flash, 4 KB RAM, lower power (0.52 μA STOP mode), no hardware I²C | Preferred for ultra-low-power battery-operated devices; lacks I²C slave mode and ADC channel count | Select when energy efficiency outweighs peripheral richness and legacy 78K0R toolchain compatibility is not required |
| UPD78F1203MC(S)-CAB-AX | Same 78K0R/Ix3 family; 128 KB Flash, identical peripherals and pinout - only differs in program memory size | Drop-in replacement where larger firmware image or future feature expansion is anticipated | Choose for design scalability - same PCB layout and driver software, only reflash required |
Compared with UPD78F1201MC(S)-CAB-AX, R5F100LEAFB#30 offers superior low-power operation but sacrifices I²C slave functionality and ADC channel density, while UPD78F1203MC(S)-CAB-AX provides seamless upgrade path with identical timing, interface behavior, and footprint - enabling firmware-only scaling.
Availability
UPD78F1201MC(S)-CAB-AX is available at Aetrix Electronics and suitable for industrial motor control, home appliance MCU, and smart power metering requiring stable component supply and long-term lifecycle support.
Supply support for UPD78F1201MC(S)-CAB-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 industrial, automotive, and infrastructure markets.
The 78K0R/Ix3 product line delivers cost-optimized 16-bit MCUs targeting legacy-compatible embedded control in industrial automation, white goods, and metering - emphasizing peripheral integration, Flash reliability, and toolchain continuity.
FAQ
What is the maximum operating frequency of the UPD78F1201MC(S)-CAB-AX?
The UPD78F1201MC(S)-CAB-AX supports a maximum system clock frequency of 20 MHz when using the internal high-speed oscillator or an external crystal source. This allows instruction execution at 20 million cycles per second with typical current consumption of 12.5 mA at 5 V and 20 MHz, making it suitable for real-time control tasks requiring deterministic timing such as motor commutation and sensor sampling.
Does the UPD78F1201MC(S)-CAB-AX support in-circuit debugging without external hardware?
Yes, the UPD78F1201MC(S)-CAB-AX includes a built-in on-chip debug interface compatible with Renesas QB-MINI2 and ID78K0R-QB tools. It enables full real-time debugging - including breakpoints, watchpoints, register inspection, and memory read/write - without requiring an external in-circuit emulator, significantly reducing development cost and board space requirements for prototyping and validation.
What is the Flash memory endurance specification for the UPD78F1201MC(S)-CAB-AX?
The UPD78F1201MC(S)-CAB-AX specifies 100,000 write/erase cycles for its 64 KB on-chip Flash memory, with guaranteed data retention of 10 years at +85°C. This endurance level supports field firmware updates and parameter storage in industrial applications where over-the-air updates or calibration data logging occur periodically throughout product lifetime.
Can the UPD78F1201MC(S)-CAB-AX operate from a 3.3 V supply?
Yes, the UPD78F1201MC(S)-CAB-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 accuracy, and I/O drive strength - allowing direct integration with 3.3 V logic families and mixed-voltage designs without level-shifting components.
Is the UPD78F1201MC(S)-CAB-AX pin-compatible with other members of the 78K0R/Ix3 family?
Yes, the UPD78F1201MC(S)-CAB-AX shares identical pin configuration and electrical characteristics with other LQFP-64 variants in the 78K0R/Ix3 family, including UPD78F1203MC(S)-CAB-AX and UPD78F1211MC(S)-CAB-AX. This enables hardware reuse across different memory sizes and peripheral configurations - simplifying PCB design and enabling scalable product families with minimal layout changes.
UPD78F1201MC(S)-CAB-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-AX FAQ
1.How can I place an order for UPD78F1201MC(S)-CAB-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1201MC(S)-CAB-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-AX reliable?
The price and inventory of UPD78F1201MC(S)-CAB-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-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1201MC(S)-CAB-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1201MC(S)-CAB-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1201MC(S)-CAB-AX?
UPD78F1201MC(S)-CAB-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1201MC(S)-CAB-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-AX?
For technical support, including UPD78F1201MC(S)-CAB-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-AX requirements.
6.How does Aetrix verify that UPD78F1201MC(S)-CAB-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1201MC(S)-CAB-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-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1201MC(S)-CAB-AX?
All UPD78F1201MC(S)-CAB-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1201MC(S)-CAB-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-AX part is unused and in its original packaging.
Return procedure for UPD78F1201MC(S)-CAB-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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