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Renesas UPD78F0744MC-CAA-AX
- Part No.:
- UPD78F0744MC-CAA-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
UPD78F0744MC-CAA-AX.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,604
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Product details
Overview
UPD78F0744MC-CAA-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/IA2 family, featuring a 16 MHz max CPU clock, 64 KB on-chip Flash memory, and integrated 10-bit ADC with 8 channels. It includes two 16-bit timers (X0/X1), one 16-bit timer/event counter (TM00), and supports I²C, UART, and LIN bus interfaces. It is used in automotive body control modules and industrial sensor interface units.
For engineers reviewing the UPD78F0744MC-CAA-AX datasheet, UPD78F0744MC-CAA-AX pinout, UPD78F0744MC-CAA-AX application, or UPD78F0744MC-CAA-AX equivalent, key selection criteria include Flash endurance (100,000 write cycles), operating voltage range (2.7–5.5 V), built-in voltage regulator (REGC pin), and support for LIN 2.1 protocol in automotive subsystems.
Technical Context
The UPD78F0744MC-CAA-AX implements the 78K0 core with 16-bit addressing, 48-pin LQFP package, and dual-clock system supporting internal high-speed oscillator (up to 20 MHz) and external crystal (1–20 MHz). Its clock generator includes PLL and prescaler for flexible system clock derivation.
It integrates analog functions including a 10-bit ADC with sample-and-hold, programmable gain amplifier input (P30/P31), and low-voltage detection (LVD) circuit with three selectable thresholds. Peripheral control logic supports synchronous serial communication via CSI and asynchronous UART with LIN break detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core with 16-bit address bus and 16-level hardware stack |
| Max Operating Frequency | 16 MHz system clock (with PLL enabled); enables real-time response in motor control loops |
| Flash Memory | 64 KB on-chip Flash with 100,000 erase/write cycles; supports in-application programming (IAP) |
| RAM Size | 4 KB on-chip RAM; sufficient for nested interrupt handling and small real-time OS stacks |
| ADC Resolution & Channels | 10-bit SAR ADC with 8 input channels and 1 µs conversion time; supports simultaneous sampling of critical sensor inputs |
| Supply Voltage Range | 2.7 V to 5.5 V; compatible with 3.3 V and 5 V industrial and automotive power domains |
| Operating Temperature | −40 °C to +85 °C; qualified for under-hood automotive applications per AEC-Q100 Class 2 |
Pinout & Package
UPD78F0744MC-CAA-AX is housed in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined for dual-voltage I/O (VDD/VSS pairs), analog reference (AVREF/AVSS), and dedicated LIN transceiver interface (LINRX/LINTX).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation; decoupling required per pin group |
| REGC | Internal regulator capacitor connection | External 1 µF ceramic capacitor stabilizes on-chip 3.3 V regulator output for analog and digital blocks |
| P30, P31 | ADC input / PGA differential pair | Configurable as single-ended or differential inputs with programmable gain (1×/2×/4×/8×) for precision current sensing |
| LINRX, LINTX | LIN physical layer interface | Direct connection to LIN transceiver; supports LIN 2.1 slave node operation without external level-shifting |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset IC or microcontroller watchdog signal |
| X1, X2 | Crystal oscillator terminals | Supports fundamental-mode quartz crystals from 1 MHz to 20 MHz; internal load capacitors configurable via SFR |
Key Features
| Feature | Design Value |
|---|---|
| On-chip LIN controller | Hardware-accelerated LIN 2.1 protocol engine with automatic checksum generation and sync field detection |
| High-impedance PWM output control | Configurable high-Z state on PWM pins during fault conditions (e.g., overcurrent), enabling safe motor drive shutdown |
| Self-programmable Flash | Supports firmware updates in-system via UART or CSI; no external programmer required for field upgrades |
| Low-power modes | HALT, STOP, and SNOOZE modes with wake-up from multiple sources (INTP0–INTP3, timer, LIN activity) |
| Integrated voltage regulator | On-chip 3.3 V regulator powered from VDD (2.7–5.5 V); eliminates need for external LDO in cost-sensitive designs |
Applications
| Automotive Door Module | Industrial Temperature Controller |
|---|---|
Use Scenario: Centralized control of window lift, mirror adjustment, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave node firmware, managing PWM-driven motor drivers and ADC-based position feedback. Use Value: Integrated LIN PHY interface and high-impedance PWM control reduce BOM count by eliminating discrete transceivers and external fault-handling logic. |
Use Scenario: Closed-loop temperature regulation using thermistor input, PID computation, and triac-triggered heating element control. IC Role / Device Role / Timing Role: Real-time sensor acquisition (10-bit ADC), 16-bit timer-based zero-crossing detection, and UART-based HMI communication. Use Value: 4 KB RAM and 64 KB Flash enable embedded PID tuning tables and data logging without external memory. |
| Smart HVAC Actuator | Home Appliance Motor Driver |
Use Scenario: Position-controlled damper actuation in residential HVAC systems using stepper or DC motor. IC Role / Device Role / Timing Role: Motion controller interfacing with quadrature encoder, driving H-bridge via PWM, and reporting status over I²C. Use Value: Dual 16-bit timers (X0/X1) provide independent PWM and encoder capture channels, eliminating timing conflicts in motion control loops. |
Use Scenario: Variable-speed motor control in washing machines and fans using back-EMF sensing and commutation logic. IC Role / Device Role / Timing Role: Sensorless BLDC commutation controller with ADC-based back-EMF sampling and precise 1 µs PWM dead-time insertion. Use Value: 1 µs ADC conversion time and hardware PWM dead-time control ensure accurate rotor position estimation and prevent shoot-through. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UPD78F0743MC-CAA-AX | Same 78K0/IA2 family, 48 KB Flash, identical pinout and peripheral set except reduced Flash size | Suitable for cost-optimized variants where firmware footprint < 48 KB | Select when application code size fits within 48 KB and Flash endurance requirements match |
| RL78/F12 R5F10PLGSP#V0 | Successor RL78 core, 32 KB Flash, lower power (66 µA/MHz), but different instruction set and register map | Requires full firmware porting; preferred for new designs targeting extended battery life | Choose for new designs prioritizing ultra-low power; not drop-in compatible with UPD78F0744MC-CAA-AX |
Compared with UPD78F0744MC-CAA-AX, UPD78F0743MC-CAA-AX offers identical peripherals and package but less Flash, while RL78/F12 provides superior power efficiency and modern toolchain support at the cost of software migration effort.
Availability
UPD78F0744MC-CAA-AX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and home appliance motor control requiring stable component supply across multi-year production cycles.
Supply support for UPD78F0744MC-CAA-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 automotive, industrial, and IoT markets.
The 78K0/Ix2 product line delivers cost-effective, AEC-Q100-qualified 8-bit MCUs targeting body electronics, motor control, and sensor interface applications with integrated analog and communication peripherals.
FAQ
What is the maximum system clock frequency supported by the UPD78F0744MC-CAA-AX?
The UPD78F0744MC-CAA-AX supports a maximum system clock frequency of 16 MHz when using the internal PLL with an external crystal up to 20 MHz. This frequency is achievable with proper configuration of the clock generator registers (CKM, PLLCTL) and meets timing requirements for real-time motor control and LIN communication without external clock synthesis.
Does the UPD78F0744MC-CAA-AX include a hardware LIN controller?
Yes, the UPD78F0744MC-CAA-AX includes a dedicated LIN controller peripheral that supports LIN 2.1 protocol features including automatic sync field detection, checksum generation (classic/enhanced), and break signal detection. The LINRX and LINTX pins are assigned to P121 and P122 respectively, enabling direct connection to a LIN transceiver without GPIO bit-banging.
What is the role of the REGC pin on the UPD78F0744MC-CAA-AX?
The REGC pin on the UPD78F0744MC-CAA-AX connects to an external 1 µF ceramic capacitor that stabilizes the output of the on-chip 3.3 V voltage regulator. This regulator powers internal analog circuits (ADC, comparator) and digital logic, allowing operation from a single 2.7–5.5 V supply without requiring an external LDO - a key feature for space-constrained automotive and industrial modules.
Can the UPD78F0744MC-CAA-AX perform ADC conversions while in low-power STOP mode?
No, the UPD78F0744MC-CAA-AX cannot perform ADC conversions in STOP mode because the ADC clock is halted. However, it supports ADC wake-up from HALT mode using the ADTRG bit, allowing low-latency sensor sampling with fast wake-up (≤ 4 µs) and minimal power consumption during idle periods - a design advantage for battery-powered sensor nodes.
Is the UPD78F0744MC-CAA-AX pin-compatible with other 78K0/IA2 devices like UPD78F0743MC-CAA-AX?
Yes, the UPD78F0744MC-CAA-AX is pin-compatible with UPD78F0743MC-CAA-AX and other 48-pin 78K0/IA2 variants (e.g., UPD78F0753). All share identical pin functions, electrical characteristics, and package dimensions (LQFP48), enabling hardware reuse across firmware variants with different Flash sizes - a benefit for scalable product families.
UPD78F0744MC-CAA-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Series:
- 78K0/Ix2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 10MHz
- Connectivity:
- DALI, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0744MC-CAA-AX FAQ
1.How can I place an order for UPD78F0744MC-CAA-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0744MC-CAA-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 UPD78F0744MC-CAA-AX reliable?
The price and inventory of UPD78F0744MC-CAA-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0744MC-CAA-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0744MC-CAA-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0744MC-CAA-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0744MC-CAA-AX?
UPD78F0744MC-CAA-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0744MC-CAA-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 UPD78F0744MC-CAA-AX?
For technical support, including UPD78F0744MC-CAA-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0744MC-CAA-AX requirements.
6.How does Aetrix verify that UPD78F0744MC-CAA-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0744MC-CAA-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 UPD78F0744MC-CAA-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0744MC-CAA-AX?
All UPD78F0744MC-CAA-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0744MC-CAA-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 UPD78F0744MC-CAA-AX part is unused and in its original packaging.
Return procedure for UPD78F0744MC-CAA-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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