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Infineon Technologies C505CA4EMCABXQMA1
- Part No.:
- C505CA4EMCABXQMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-QFP
- Datasheet:
-
C505CA4EMCABXQMA1.pdf
- Description:
- IC MCU 8BIT 32KB OTP 44MQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,021
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Product details
Overview
C505CA4EMCABXQMA1 from Infineon Technologies is an 8-bit single-chip microcontroller in the C500 family, fully compatible with the 8051 architecture and extended with 8 datapointers, 32K-byte on-chip OTP program memory, 1K-byte on-chip XRAM, and a 10-bit A/D converter with up to 8 analog inputs. It integrates a full CAN 2.0B controller supporting 1 MBaud at ≥8 MHz operation and operates up to 20 MHz (300 ns instruction cycle).
For engineers reviewing the C505CA4EMCABXQMA1 datasheet, C505CA4EMCABXQMA1 pinout, C505CA4EMCABXQMA1 application, or C505CA4EMCABXQMA1 equivalent, this device is selected for embedded automotive and industrial control where integrated CAN, mixed-signal I/O, and on-chip emulation support are required.
Technical Context
The C505CA4EMCABXQMA1 implements a superset of the 8051 core with dual data pointers per bank, three 16-bit timers (including Timer 2 with four capture/compare channels), and a programmable baudrate USART. Its CAN module uses 256 bytes of external data memory for message objects and includes internal clock prescaling for input frequencies >10 MHz.
It features 32 + 2 digital I/O lines across four 8-bit ports and one 2-bit port (Port 4), with Port 1 supporting mixed analog/digital functionality. Power management includes slow-down, idle, and software power-down modes with wake-up via P3.2/INT0 or P4.1/RXDC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8051-compatible 8-bit CPU with 8 datapointers for efficient memory access across multiple banks |
| Max Operating Frequency | 20 MHz - enables 300 ns instruction cycle time for real-time deterministic response |
| Program Memory | 32K-byte on-chip OTP - supports field-programmable firmware without external EPROM or flash |
| XRAM Size | 1 K-byte on-chip - eliminates need for external RAM in compact CAN node designs |
| A/D Converter | 10-bit resolution, 8-channel - provides sufficient dynamic range for sensor interfacing in motor control |
| CAN Compliance | CAN 2.0B protocol support - enables interoperability with standard automotive and industrial CAN networks |
| Operating Temperature | –40 °C to 85 °C - qualified for industrial ambient environments without derating |
Pinout & Package
P-MQFP-44 package: 44-pin plastic metric quad flat pack with 0.8 mm lead pitch, thermally optimized for industrial PCB layouts and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Supports external quartz crystal (1–20 MHz) or ceramic resonator; internal oscillator circuitry drives core timing |
| RESET | Active-low reset input | Asynchronous reset with internal power-on reset circuit; debounced by external capacitor for noise immunity |
| EA | External access enable | Low = execute from external memory; high = execute from on-chip OTP - controls boot source selection |
| ALE | Address latch enable | Strobes lower byte of address during external memory access; usable as general-purpose clock output |
| PSEN | Program store enable | Read strobe for external program memory - active low during opcode fetch from external ROM |
| VAREF / VAGND | Analog reference and ground | Separate analog supply pins isolate ADC reference from digital noise; critical for 10-bit measurement accuracy |
| P3.2 / INT0 | External interrupt 0 input | Dedicated wake-up source from power-down mode; supports edge-triggered event detection |
| P4.1 / RXDC | CAN receive data/clock input | Primary CAN physical layer interface pin; also serves as wake-up trigger in low-power states |
Key Features
| Feature | Design Value |
|---|---|
| On-chip emulation support (Enhanced Hooks™) | Enables real-time debugging without ICE hardware - reduces development cycle time and BOM cost |
| Programmable 15-bit watchdog timer | Configurable timeout period prevents system lockup in unattended industrial nodes |
| Three power-saving modes | Software power-down draws <10 µA - extends battery life in remote CAN sensor nodes |
| Port 1 analog/digital multiplexing | Allows shared pin usage for ADC sampling and GPIO control - optimizes pin count in space-constrained designs |
| Timer 2 with 4-channel capture/compare | Supports PWM generation, pulse width measurement, and quadrature decoding for motor feedback |
Applications
| Automotive Body Control Module | Industrial CAN Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, lighting, and window actuators via CAN bus. IC Role / Device Role / Timing Role: Primary CAN node MCU managing sensor inputs, actuator outputs, and protocol arbitration. Use Value: Integrated 10-bit ADC interfaces cabin temperature and light sensors; 32K OTP stores vehicle-specific configuration. | Use Scenario: Distributed environmental monitoring in factory automation with wired CAN backbone. IC Role / Device Role / Timing Role: Edge-node controller acquiring analog sensor data and transmitting over CAN 2.0B. Use Value: On-chip XRAM buffers sampled data before transmission; power-down mode extends maintenance interval. |
| Motor Drive Feedback Controller | Heating System Safety Monitor |
Use Scenario: Closed-loop speed regulation of BLDC motors using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time PWM generator and quadrature decoder via Timer 2 capture/compare channels. Use Value: 20 MHz operation ensures sub-50 µs loop timing; 10-bit ADC reads current sense and temperature. | Use Scenario: Standalone thermal cutoff unit verifying heater element integrity and ambient temperature limits. IC Role / Device Role / Timing Role: Safety-critical monitor with independent watchdog and fail-safe reset behavior. Use Value: Programmable 15-bit watchdog detects firmware hang; dedicated reset circuit meets IEC 61508 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit CAN microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAB-C505CA-4R | 32K-byte mask ROM instead of OTP; identical pinout, peripherals, and timing | Requires ROM code finalization pre-production; unsuitable for prototyping or low-volume firmware iteration | Select when firmware is stable and high-volume manufacturing justifies mask cost |
| Infineon C515C-16R | 16K-byte ROM, no CAN, 8-bit ADC, same P-MQFP-44 package and 8051 core | Lacks CAN interface and 10-bit ADC; suitable only for non-networked control tasks | Choose only if CAN and high-resolution analog acquisition are unnecessary |
Compared with SAB-C505CA-4R and C515C-16R, the C505CA4EMCABXQMA1 uniquely balances field-programmable OTP, full CAN 2.0B, and 10-bit ADC in a single 44-pin package - making it optimal for iterative development and CAN-based industrial edge nodes.
Availability
C505CA4EMCABXQMA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN sensor nodes, motor drive feedback controllers, and heating system safety monitors requiring stable component supply across extended product lifecycles.
Supply support for C505CA4EMCABXQMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial microcontrollers, with global R&D and manufacturing infrastructure.
The C500 family - including the C505CA - was designed for cost-sensitive, real-time embedded control in automotive and industrial applications requiring integrated CAN, mixed-signal I/O, and on-chip debug capability.
FAQ
What is the maximum CAN bit rate supported by the C505CA4EMCABXQMA1?
The C505CA4EMCABXQMA1 supports up to 1 MBaud CAN communication when operating at ≥8 MHz. Its internal CAN clock prescaler allows stable timing even with input frequencies above 10 MHz, ensuring reliable arbitration and error handling in electrically noisy environments.
Does the C505CA4EMCABXQMA1 require an external crystal, or can it use an internal oscillator?
The C505CA4EMCABXQMA1 requires an external crystal or ceramic resonator connected between XTAL1 and XTAL2. It does not include a factory-trimmed RC oscillator; timing accuracy and stability depend entirely on the external resonator and load capacitors.
How is the 32K-byte OTP memory programmed, and what programming voltage is required?
The 32K-byte OTP memory is programmed using standard Infineon parallel programming equipment (e.g., Dataman 48) at VPP = 12.5 V. Programming is irreversible and must be performed before soldering; no in-circuit programming capability is provided.
Can the C505CA4EMCABXQMA1 operate in extended temperature ranges beyond –40 °C to +85 °C?
No - the C505CA4EMCABXQMA1 is specified only for the SAF temperature grade (–40 °C to +85 °C). Higher-grade variants like SAH (–40 °C to +110 °C) exist for the C505CA family but are distinct orderable parts with different suffixes and qualification testing.
C505CA4EMCABXQMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-QFP
- Series:
- C5xx/C8xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C500
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, EBI/EMI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 1.25K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.25V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C505CA4EMCABXQMA1 FAQ
1.How can I place an order for C505CA4EMCABXQMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C505CA4EMCABXQMA1 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 C505CA4EMCABXQMA1 reliable?
The price and inventory of C505CA4EMCABXQMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C505CA4EMCABXQMA1 is usually 5 days.
3.What payment methods are accepted for C505CA4EMCABXQMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C505CA4EMCABXQMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C505CA4EMCABXQMA1?
C505CA4EMCABXQMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C505CA4EMCABXQMA1 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 C505CA4EMCABXQMA1?
For technical support, including C505CA4EMCABXQMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C505CA4EMCABXQMA1 requirements.
6.How does Aetrix verify that C505CA4EMCABXQMA1 is sourced from the original manufacturer or authorized distributors?
All C505CA4EMCABXQMA1 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 C505CA4EMCABXQMA1 meets industry standards.
7.What is the process for return or replacement of C505CA4EMCABXQMA1?
All C505CA4EMCABXQMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C505CA4EMCABXQMA1, 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 C505CA4EMCABXQMA1 part is unused and in its original packaging.
Return procedure for C505CA4EMCABXQMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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