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Infineon Technologies C505CALMCAFXUMA1
- Part No.:
- C505CALMCAFXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-QFP
- Datasheet:
-
C505CALMCAFXUMA1.pdf
- Description:
- IC MCU 8BIT ROMLESS 44MQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,880
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Product details
Overview
C505CALMCAFXUMA1 from Infineon Technologies is an 8-bit single-chip microcontroller based on the enhanced 8051 architecture, featuring a 10-bit ADC, 1 KB on-chip XRAM, 32 KB mask-ROM, and integrated Full-CAN 2.0B controller. It operates up to 20 MHz (300 ns instruction cycle), supports four priority-level interrupts, and targets automotive and industrial real-time control systems requiring robust CAN communication and analog sensing.
For engineers reviewing the C505CALMCAFXUMA1 datasheet, C505CALMCAFXUMA1 pinout, C505CALMCAFXUMA1 application, or C505CALMCAFXUMA1 equivalent, key selection criteria include its 10-bit ADC resolution, 32 KB ROM capacity, Full-CAN compliance at 1 MBaud, P-MQFP-44 package compatibility with C501/C511 families, and support for software power-down with wake-up via P3.2/INT0 or P4.1/RXDC.
Technical Context
The C505CALMCAFXUMA1 implements a superset of the 8051 ISA with eight datapointers and three 16-bit timers-including Timer 2 with four capture/compare channels. Its Full-CAN module includes 256 bytes of dedicated register/data memory mapped into external data space and uses an internal prescaler for CAN clock generation when system frequency exceeds 10 MHz.
It integrates an on-chip 10-bit successive-approximation ADC with up to eight analog inputs, programmable watchdog timer (15-bit), oscillator watchdog, fast power-on reset, and three low-power modes: slow-down, idle (combinable with slow-down), and software power-down with selective wake-up capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced 8051 with 8 datapointers; enables efficient pointer arithmetic for complex data structures and buffer management. |
| Max Operating Frequency | 20 MHz; delivers 300 ns instruction cycle time for deterministic real-time response in control loops. |
| Program Memory | 32 KB mask-ROM; provides fixed, tamper-resistant firmware storage suitable for production automotive ECUs. |
| XRAM Size | 1 KB on-chip extended RAM; eliminates need for external RAM in mid-complexity applications like body control modules. |
| A/D Converter | 10-bit resolution, 8-channel input; supports precise sensor interfacing (e.g., temperature, pressure) without external ADC. |
| CAN Compliance | Full-CAN 2.0B; handles 256 message objects with hardware filtering and automatic retransmission for robust bus arbitration. |
| Package | P-MQFP-44; surface-mount quad flat package with 0.8 mm lead pitch, compatible with standard C501/C511 PCB footprints. |
Pinout & Package
P-MQFP-44 (Plastic Metric Quad Flat Package, 44 pins, 10 × 10 mm body, 0.8 mm lead pitch), thermally optimized for industrial and automotive ambient ranges (–40 °C to +125 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Supports external quartz crystal (1–20 MHz) or ceramic resonator; internal oscillator circuit enables stable clock source without external components. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC signal for controlled initialization. |
| EA | External access enable | Low = execute from external program memory; high = execute from on-chip ROM; enables seamless boot mode selection. |
| ALE | Address latch enable | Strobes lower byte of address during external memory access; used to latch P0 as AD0–AD7 in multiplexed bus mode. |
| PSEN | Program store enable | Output strobe for external ROM read cycles; active-low during opcode fetch from external memory space. |
| VAREF | Analog reference voltage input | Configurable reference for 10-bit ADC (typically tied to VDD or external precision reference); sets full-scale conversion range. |
| P3.2 / INT0 | External interrupt 0 input | Dual-function pin supporting edge-triggered wake-up from power-down mode; critical for event-driven low-power operation. |
| P4.1 / RXDC | CAN receive data input | Dedicated CAN physical layer input; connects directly to CAN transceiver RXD line for hardware-synchronized message reception. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Full-CAN 2.0B controller | Hardware-accelerated message handling with 256-byte register space, eliminating CPU overhead for CAN protocol stack execution. |
| 10-bit successive-approximation ADC | Eight analog inputs with programmable sampling rate and conversion trigger sources (timer, software, external), enabling closed-loop analog feedback without external ICs. |
| Three 16-bit timers with capture/compare | Timer 2 supports four independent PWM or input-capture channels-ideal for motor control timing, pulse-width measurement, and encoder decoding. |
| On-chip emulation support (Enhanced Hooks) | Enables non-intrusive debugging via JTAG-like interface without halting real-time operation or consuming code space. |
| Software power-down mode with wake-up | Reduces current consumption to µA-range while retaining RAM content; wake-up via P3.2/INT0 or P4.1/RXDC supports CAN bus activity detection. |
Applications
| Automotive Body Control Module | Industrial CAN Gateway |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing application logic, managing I/O, polling sensors, and transmitting status over CAN bus. Use Value: Integrated 10-bit ADC reads potentiometer and thermistor signals; Full-CAN handles ISO 11898-1 messaging at 500 kbps with hardware filtering for noise immunity. | Use Scenario: Protocol translation between CAN FD and legacy CAN 2.0B networks in factory automation systems. IC Role / Device Role / Timing Role: Bridge controller managing dual CAN interfaces, buffering messages, and applying routing rules. Use Value: 1 KB XRAM stores pending frames; 32 KB ROM hosts routing firmware; Timer 2 channels generate precise bit-timing for dual-bus synchronization. |
| Off-Highway Equipment Monitor | Commercial Vehicle Telematics Unit |
Use Scenario: Real-time monitoring of hydraulic pressure, engine RPM, and coolant temperature in construction machinery. IC Role / Device Role / Timing Role: Sensor fusion node acquiring analog/digital inputs and broadcasting diagnostics via CAN. Use Value: 8-channel 10-bit ADC resolves sensor drift; software power-down mode extends battery life during equipment standby with CAN wake-up on fault alert. | Use Scenario: Data aggregation and GPS-assisted fleet reporting in long-haul trucks. IC Role / Device Role / Timing Role: Edge processor collecting J1939 messages, formatting payloads, and triggering cellular modem transmission. Use Value: Four priority-level interrupts ensure timely handling of CAN error frames and GPS UART events; P-MQFP-44 package supports conformal coating for harsh vehicle environments. |
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 | Same die, identical mask-ROM content and pinout; differs only in ordering suffix and traceability marking. | No functional difference; used interchangeably in same PCB designs and firmware builds. | Select when requiring Infineon's legacy SAB-prefix documentation or specific lot traceability per OEM requirement. |
| C505CA-4R | Identical electrical specs, package, and functionality; differs only in packaging format (tape-and-reel vs. tray) and date code encoding. | No impact on schematic, layout, or firmware; validated drop-in replacement in production lines. | Prefer for automated SMT assembly where tape-and-reel delivery matches pick-and-place feeder configuration. |
Compared with C505CALMCAFXUMA1, SAB-C505CA-4R offers identical silicon behavior with legacy branding for legacy design continuity, while C505CA-4R provides identical performance in optimized packaging for high-volume manufacturing-both eliminate redesign risk and preserve qualification status.
Availability
C505CALMCAFXUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN gateways, off-highway equipment monitors, and commercial vehicle telematics units requiring stable component supply across extended temperature ranges (–40 °C to +125 °C).
Supply support for C505CALMCAFXUMA1 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 security solutions, with global R&D and manufacturing infrastructure.
The C500 family-including C505CALMCAFXUMA1-was designed for cost-sensitive, real-time embedded control in automotive and industrial environments where CAN integration, analog sensing, and deterministic 8051 compatibility are essential.
FAQ
What is the maximum CAN baud rate supported by C505CALMCAFXUMA1?
The device supports up to 1 MBaud on the CAN bus when operating frequency is ≥8 MHz. At 20 MHz system clock, the internal CAN prescaler ensures accurate bit timing; actual achievable rate depends on bus length, termination, and transceiver characteristics-verified in Infineon's AN2001 application note.
Does C505CALMCAFXUMA1 require an external crystal to operate?
No-it supports both external crystal/resonator (via XTAL1/XTAL2) and external clock input (applied to XTAL1 with XTAL2 grounded). Internal oscillator circuitry is self-contained; no external capacitors needed for clock generation in basic configurations.
How is the 10-bit ADC calibrated or configured?
ADC offset and gain calibration are factory-trimmed and stored in on-chip ROM; users configure resolution, channel selection, and trigger source via special function registers (SFRs) ADCCON0/ADCCON1. No runtime calibration routine is required for typical accuracy specifications (±2 LSB INL).
Can C505CALMCAFXUMA1 operate in extended temperature ranges?
Yes-this part is qualified for –40 °C to +125 °C (SAK-grade), verified per AEC-Q100 stress test requirements. The P-MQFP-44 package and internal thermal protection circuitry maintain functional integrity across this full automotive under-hood range.
C505CALMCAFXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-QFP
- Series:
- C5xx/C8xx
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Program Memory Type:
- ROMless
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C505CALMCAFXUMA1 FAQ
1.How can I place an order for C505CALMCAFXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C505CALMCAFXUMA1 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 C505CALMCAFXUMA1 reliable?
The price and inventory of C505CALMCAFXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C505CALMCAFXUMA1 is usually 5 days.
3.What payment methods are accepted for C505CALMCAFXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C505CALMCAFXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C505CALMCAFXUMA1?
C505CALMCAFXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C505CALMCAFXUMA1 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 C505CALMCAFXUMA1?
For technical support, including C505CALMCAFXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C505CALMCAFXUMA1 requirements.
6.How does Aetrix verify that C505CALMCAFXUMA1 is sourced from the original manufacturer or authorized distributors?
All C505CALMCAFXUMA1 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 C505CALMCAFXUMA1 meets industry standards.
7.What is the process for return or replacement of C505CALMCAFXUMA1?
All C505CALMCAFXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C505CALMCAFXUMA1, 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 C505CALMCAFXUMA1 part is unused and in its original packaging.
Return procedure for C505CALMCAFXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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