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Infineon Technologies SAF-C164CI-8EM
- Part No.:
- SAF-C164CI-8EM
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
SAF-C164CI-8EM.pdf
- Description:
- LEGACY 16-BIT MCU
- Quantity:
- Payment:
- Shipping:
Inventory:860
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Product details
Overview
SAF-C164CI-8EM from Infineon Technologies is a 16-bit single-chip microcontroller with 64 KByte OTP program memory, full-function CAN 2.0B interface (15 message objects), and 25 MHz max CPU clock (12.5 MIPS). It integrates 4 KByte on-chip RAM (2 KB IRAM + 2 KB XRAM), 8-channel 10-bit ADC (7.8 µs min conversion), CAPCOM6 PWM unit, and real-time clock - deployed in industrial motor control and automotive body electronics.
For engineers reviewing the SAF-C164CI-8EM datasheet, SAF-C164CI-8EM pinout, SAF-C164CI-8EM application, or SAF-C164CI-8EM equivalent, key selection criteria include OTP programmability, full CAN 2.0B support, 80-pin MQFP package compatibility, 10-bit ADC timing, and CAPCOM6 channel count for multi-phase PWM generation.
Technical Context
The SAF-C164CI-8EM implements a 4-stage pipeline C166-family CPU core with register-based architecture, single-cycle context switching, and 16 MByte linear address space. Its PLL supports clock multiplication factors of 1.5× to 5×, enabling precise 25 MHz operation from lower-frequency crystals.
Peripheral integration includes dual serial channels (asynchronous/synchronous/HS-synchronous), 3-timer unit with capture/compare capability, and a dedicated CAN controller compliant with ISO 11898, supporting both Full and Basic CAN modes with programmable message filtering and automatic retransmission.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166 16-bit with 4-stage pipeline, 80 ns instruction cycle at 25 MHz |
| Program Memory | 64 KByte OTP - field-programmable once, no external ROM required |
| CAN Interface | Full CAN 2.0B (Rev. 2.0B active), 15 message objects, hardware message filtering |
| ADC | 8-channel 10-bit SAR ADC, programmable conversion time down to 7.8 µs |
| Timers | Three independent timers; CAPCOM2 (8-channel) + CAPCOM6 (3/6 capture/compare + 1 compare) |
| Package | 80-pin MQFP, 0.65 mm pitch - supports standard surface-mount assembly |
| Supply Voltage | 5 V ±10% - compatible with legacy industrial logic families and level-shifting interfaces |
Pinout & Package
SAF-C164CI-8EM is housed in an 80-pin MQFP (Metric Quad Flat Package) with 0.65 mm lead pitch, designed for high-density PCB layouts and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Supports external crystal (1–25 MHz) or ceramic resonator; enables PLL clock synthesis |
| P0L.0–P0L.7 / P0H.0–P0H.7 | Port 0 low/high byte (AD0–AD15) | 16-bit multiplexed address/data bus for external memory interfacing |
| RSTIN / RSTOUT | Reset input/output | Asynchronous reset assertion; RSTOUT provides synchronized reset signal for peripherals |
| P3.10 / P3.11 | UART0 TxD0 / RxD0 | Full-duplex asynchronous serial communication, up to 115.2 kbps at 25 MHz |
| P4.5 / P4.6 / P8.0–P8.3 | CAN TX / RX / CC16IO–CC19IO | Dedicated CAN physical layer I/O; CCxIO pins support flexible PWM edge alignment |
| P5.0–P5.7 | AN0–AN7 | 8 analog inputs for 10-bit ADC; internal reference (VAREF) configurable for ratiometric sensing |
Key Features
| Feature | Design Value |
|---|---|
| On-chip OTP memory | 64 KByte mask-programmable ROM alternative - enables secure firmware updates without external flash |
| Full CAN 2.0B controller | 15 message objects with priority arbitration and automatic error handling - reduces host CPU overhead in distributed networks |
| CAPCOM6 PWM unit | 6-channel capture/compare with dead-time insertion and center-aligned mode - supports 3-phase motor drive without external logic |
| Peripheral Event Controller (PEC) | 8-channel DMA-like data transfer triggered by timer/ADC/CAN events - eliminates CPU polling for time-critical transfers |
| Power management modes | Idle, Sleep, Power Down with wake-up via CAN, timer, or external interrupt - extends battery life in remote nodes |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating 3-phase PWM via CAPCOM6, sampling current/voltage via 10-bit ADC. Use Value: Integrated CAN 2.0B enables direct communication with vehicle gateway; 7.8 µs ADC conversion supports 12.8 kHz current loop update rate. | Use Scenario: Central body controller managing door locks, window lifts, lighting, and mirror adjustment. IC Role / Device Role / Timing Role: CAN node coordinating with other ECUs; uses PEC to offload UART and ADC transfers during sleep/wake transitions. Use Value: Full CAN 2.0B compliance ensures interoperability with OEM diagnostic tools; OTP memory secures calibration data against tampering. |
| Energy Metering Interface | Industrial PLC I/O Module |
Use Scenario: Smart meter front-end collecting voltage/current samples and communicating via CAN to concentrator. IC Role / Device Role / Timing Role: Real-time data acquisition node using 10-bit ADC with programmable sampling intervals and CAN message buffering. Use Value: On-chip RTC provides timestamped energy logs; 15-message CAN object buffer handles burst traffic during tariff changes. | Use Scenario: Distributed I/O module converting analog sensor signals and digital actuator commands in factory automation. IC Role / Device Role / Timing Role: Local intelligence hub with 8-channel ADC, GPIO expansion via external bus, and CAN backbone connectivity. Use Value: 4 MByte external address space supports large configuration tables; 59 GPIO lines enable mixed analog/digital I/O without glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit CAN microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAK-C164CI-8R25M | 64 KByte mask ROM instead of OTP; identical peripheral set and pinout | Fixed firmware only; no field updates possible | Select when production volume justifies ROM mask cost and firmware is stable |
| SAF-C164CL-8R25M | Reduced-function CAPCOM6 (3-channel only); same OTP and CAN capability | Limited PWM complexity - unsuitable for 3-phase motor control requiring >3 channels | Select for simpler timing tasks where CAPCOM6 channel count is not critical |
Compared with SAK-C164CI-8R25M, SAF-C164CI-8EM trades mask ROM permanence for field-programmable flexibility; versus SAF-C164CL-8R25M, it retains full 6-channel CAPCOM6 essential for advanced motor control topologies.
Availability
SAF-C164CI-8EM is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for SAF-C164CI-8EM 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 microcontrollers, with global R&D and manufacturing infrastructure.
The C164CI belongs to the C166 family - engineered for cost-sensitive industrial and automotive applications demanding integrated CAN, high-speed ADC, and deterministic real-time control in a single chip.
FAQ
What is the maximum operating frequency and corresponding instruction throughput?
The SAF-C164CI-8EM operates at up to 25 MHz CPU clock, delivering 12.5 million instructions per second (MIPS). Its 4-stage pipeline achieves 80 ns instruction cycle time, and arithmetic operations include 400 ns 16×16 multiply and 800 ns 32÷16 divide - verified in the May 2001 V2.0 datasheet.
Does this device support in-system programming (ISP) or field firmware updates?
No. The SAF-C164CI-8EM contains one-time-programmable (OTP) memory, not flash or EEPROM. Firmware must be programmed before soldering using Infineon's parallel programming hardware. Post-deployment updates require replacement of the MCU.
How many CAN message objects are implemented, and what protocol versions are supported?
The device implements 15 dedicated CAN message objects and fully supports CAN 2.0B (active), including both Base Frame Format (11-bit ID) and Extended Frame Format (29-bit ID). It complies with ISO 11898 and supports automatic retransmission, error confinement, and hardware message filtering.
Is the on-chip ADC compatible with external voltage references, and what is its minimum conversion time?
Yes - the 10-bit ADC accepts an external reference voltage on the VAREF pin, enabling ratiometric measurements. Minimum conversion time is 7.8 µs, achievable with optimized sampling settings and internal clock configuration as specified in Section 7.3 of the datasheet.
SAF-C164CI-8EM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-QFP
- Series:
- C16xx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, EBI/EMI, SPI, SSC, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.75V ~ 5.5V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAF-C164CI-8EM FAQ
1.How can I place an order for SAF-C164CI-8EM through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-C164CI-8EM 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 SAF-C164CI-8EM reliable?
The price and inventory of SAF-C164CI-8EM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAF-C164CI-8EM is usually 5 days.
3.What payment methods are accepted for SAF-C164CI-8EM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-C164CI-8EM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-C164CI-8EM?
SAF-C164CI-8EM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-C164CI-8EM 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 SAF-C164CI-8EM?
For technical support, including SAF-C164CI-8EM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-C164CI-8EM requirements.
6.How does Aetrix verify that SAF-C164CI-8EM is sourced from the original manufacturer or authorized distributors?
All SAF-C164CI-8EM 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 SAF-C164CI-8EM meets industry standards.
7.What is the process for return or replacement of SAF-C164CI-8EM?
All SAF-C164CI-8EM units undergo pre-shipment inspection (PSI). If there is an issue with SAF-C164CI-8EM, 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 SAF-C164CI-8EM part is unused and in its original packaging.
Return procedure for SAF-C164CI-8EM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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