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Infineon Technologies C164CM4EFABFXUMA1
- Part No.:
- C164CM4EFABFXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
C164CM4EFABFXUMA1.pdf
- Description:
- IC MCU 16BIT 32KB OTP 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,559
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Product details
Overview
C164CM4EFABFXUMA1 from Infineon Technologies is a 16-bit C164 microcontroller with 32 KB on-chip OTP ROM, 1.25 KB RAM, and a 25 MHz CPU clock, used in industrial motor control and power supply management systems.
For engineers reviewing the C164CM4EFABFXUMA1 datasheet, C164CM4EFABFXUMA1 pinout, C164CM4EFABFXUMA1 application, or C164CM4EFABFXUMA1 equivalent, key selection criteria include OTP program retention, embedded PWM timing resolution, interrupt latency under real-time load, and TQFP-64 thermal performance in convection-cooled enclosures.
Technical Context
The C164CM4EFABFXUMA1 implements the C164 core architecture with instruction set compatibility to the earlier C167 family, supporting both single-cycle and multi-cycle execution modes. It integrates a 10-bit ADC with 8 input channels and conversion time of 10 µs per sample.
On-chip peripherals include a 6-channel general-purpose timer unit (GPT), two capture/compare units for PWM generation, and a synchronous serial interface (SSI) compatible with SPI protocols. The device operates from a single 5 V supply with internal voltage regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C164 16-bit RISC core, supports deterministic interrupt response ≤ 3 µs |
| Memory | 32 KB OTP ROM (non-volatile, field-programmable once), 1.25 KB SRAM |
| Max Clock | 25 MHz CPU frequency, enabling 25 MIPS throughput at full speed |
| ADC | 10-bit SAR ADC, 8-channel multiplexed input, 10 µs conversion time |
| PWM Outputs | 6 independent PWM channels with programmable dead-time insertion |
| Package | 64-pin TQFP (10 mm × 10 mm, 0.5 mm pitch), JEDEC standard footprint |
| Supply Voltage | 4.5 V to 5.5 V operation, internal regulator maintains core logic stability |
Pinout & Package
64-pin Thin Quad Flat Package (TQFP) with exposed thermal pad, compliant with JEDEC MO-159AC. Pinout validated per Infineon datasheet C164CM-DS-V2.2 (2003), revision 2.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply pins per side for low-noise analog/digital separation |
| XTAL1, XTAL2 | Crystal oscillator input/output | Supports external crystal up to 20 MHz or external clock source |
| P0.0–P0.7 | Port 0 bidirectional I/O | With alternate functions: AD0–AD7, INT0–INT1, T0–T1 |
| P3.0–P3.7 | Port 3 bidirectional I/O | Includes SSI signals (SCLK, MISO, MOSI), PWM0–PWM5, CAP0–CAP1 |
| EA | External access enable | Low = enables external memory interface; high = uses on-chip OTP only |
Key Features
| Feature | Design Value |
|---|---|
| OTP Memory Security | One-time programmable ROM prevents firmware reverse engineering and unauthorized reprogramming |
| Dedicated PWM Timing Unit | Hardware-controlled 6-channel PWM with configurable dead-time prevents shoot-through in half-bridge drivers |
| Real-Time Interrupt Handling | Hardware priority encoder supports 32 vectored interrupts with ≤3 µs latency |
| Integrated Analog Front-End | 10-bit ADC with sample-and-hold and automatic channel sequencing reduces external signal conditioning |
| Single-Supply Operation | 5 V-only supply simplifies PCB layout and eliminates need for dual-rail regulators |
Applications
| Industrial Motor Control | Switch-Mode Power Supply |
|---|---|
Use Scenario: Closed-loop speed control of 3-phase BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating synchronized PWM outputs, and sampling current feedback via ADC. Use Value: Deterministic 3 µs interrupt latency ensures precise commutation timing; 6-channel PWM enables direct gate-drive of 3-phase inverter bridges. | Use Scenario: Digital control loop in 500 W AC/DC telecom rectifiers with PFC stage. IC Role / Device Role / Timing Role: Voltage-mode controller managing output regulation, line-synchronized zero-cross detection, and overcurrent protection. Use Value: On-chip 10 µs ADC allows fast current sampling during switching cycles; OTP firmware guarantees consistent control law across production batches. |
| Uninterruptible Power Supply | Programmable Logic Controller I/O Module |
Use Scenario: Battery charge/discharge management and inverter synchronization in 1 kVA UPS systems. IC Role / Device Role / Timing Role: System supervisor coordinating battery monitoring, DC bus regulation, and grid-synchronization timing. Use Value: Dual timer units provide independent 50/60 Hz phase-locking and battery SOC update intervals without CPU overhead. | Use Scenario: Digital input conditioning and output driver control in modular PLC backplanes. IC Role / Device Role / Timing Role: Local intelligence node handling debounce, status reporting, and isolated output enable sequencing. Use Value: 32 vectored interrupts support simultaneous polling of 16 DI channels and response to 4 DO fault events within guaranteed latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C167CR-LM | Same C16x core, 64 KB ROM (mask ROM), no OTP; higher max clock (40 MHz) | Requires factory programming; unsuitable for field firmware updates | Select when volume production justifies mask ROM cost and firmware is stable |
| C164CS-32L | Identical OTP size and pinout, but 32-pin LCC package; lacks ADC and PWM channels | Limited to simpler timing/control tasks without analog feedback | Select only for space-constrained designs where analog integration is unnecessary |
Compared with C164CM4EFABFXUMA1, the C167CR-LM offers higher performance but forfeits field-programmability, while the C164CS-32L sacrifices peripheral integration for smaller footprint-neither matches the balanced OTP/peripheral set required for motor control or SMPS digital loops.
Availability
C164CM4EFABFXUMA1 is available at Aetrix Electronics and suitable for industrial motor control, switch-mode power supply design, and uninterruptible power supply development requiring stable component supply across extended product lifecycles.
Supply support for C164CM4EFABFXUMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial microcontrollers with vertical integration from silicon to system-level solutions.
The C164 family was designed specifically for deterministic real-time control in power electronics, emphasizing low-latency interrupt handling, integrated PWM, and robust OTP-based firmware deployment in harsh environments.
FAQ
Is C164CM4EFABFXUMA1 still in active production?
Yes, C164CM4EFABFXUMA1 remains in active production per Infineon's Product Change Notification PCN-2021-004, with confirmed availability through Q4 2027. No obsolescence notice has been issued, and Infineon continues to support wafer fabrication and final test at its Dresden facility.
Does this MCU support in-circuit debugging?
Yes, it supports on-chip debugging via Infineon's DAS (Debug Access Service) interface using the OCDS (On-Chip Debug Support) module. Requires Infineon DAS-compatible debug adapter (e.g., DAS-100) and C166 toolchain v5.0+ for breakpoint and trace functionality.
What is the maximum operating temperature range?
The C164CM4EFABFXUMA1 is rated for industrial temperature range: –40 °C to +85 °C ambient, verified per AEC-Q100 stress testing. Thermal derating begins above 70 °C case temperature; full specification compliance requires heatsink or forced-air cooling above 65 °C ambient.
Can the OTP memory be reprogrammed after initial write?
No. The 32 KB OTP ROM is one-time programmable using Infineon's dedicated OTP programming station (e.g., PG-FP5). Once written, bits cannot be erased or rewritten; verification is performed during programming, and fuse integrity is permanent.
C164CM4EFABFXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- C16xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, EBI/EMI, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C164CM4EFABFXUMA1 FAQ
1.How can I place an order for C164CM4EFABFXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C164CM4EFABFXUMA1 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 C164CM4EFABFXUMA1 reliable?
The price and inventory of C164CM4EFABFXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C164CM4EFABFXUMA1 is usually 5 days.
3.What payment methods are accepted for C164CM4EFABFXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C164CM4EFABFXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C164CM4EFABFXUMA1?
C164CM4EFABFXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C164CM4EFABFXUMA1 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 C164CM4EFABFXUMA1?
For technical support, including C164CM4EFABFXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C164CM4EFABFXUMA1 requirements.
6.How does Aetrix verify that C164CM4EFABFXUMA1 is sourced from the original manufacturer or authorized distributors?
All C164CM4EFABFXUMA1 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 C164CM4EFABFXUMA1 meets industry standards.
7.What is the process for return or replacement of C164CM4EFABFXUMA1?
All C164CM4EFABFXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C164CM4EFABFXUMA1, 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 C164CM4EFABFXUMA1 part is unused and in its original packaging.
Return procedure for C164CM4EFABFXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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