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Infineon Technologies SAF-C165UTAH-LF V1.3
- Part No.:
- SAF-C165UTAH-LF V1.3
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SAF-C165UTAH-LF V1.3.pdf
- Description:
- IC MCU 16BIT ROMLESS 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
SAF-C165UTAH-LF V1.3 from Infineon Technologies is a 16-bit C166-based microcontroller with integrated USB 1.1 controller, HDLC protocol engine, and IOM-2 peripheral interface. It features 128 KB on-chip ROM, 8 KB RAM, 48-bit real-time clock, dual general-purpose timer units, and six parallel I/O ports. Designed for ISDN NT and PBX systems, it executes deterministic HDLC frame processing while supporting USB device-class communication.
For engineers reviewing the SAF-C165UTAH-LF V1.3 datasheet, SAF-C165UTAH-LF V1.3 pinout, SAF-C165UTAH-LF V1.3 application, or SAF-C165UTAH-LF V1.3 equivalent, key selection criteria include USB endpoint buffer architecture, HDLC CRC-16/CCITT hardware acceleration, IOM-2 synchronous serial timing compliance, and PEC-assisted DMA transfer latency for telecom data framing.
Technical Context
The SAF-C165UTAH-LF V1.3 implements a C166 CPU core with 5-stage instruction pipeline and bit-manipulation extensions optimized for real-time telecom control. Its on-chip USB controller supports full-speed (12 Mbps) device mode only, with dedicated endpoint FIFOs (64-byte IN/OUT buffers) and automatic descriptor handling.
HDLC support is provided via hardware-accelerated frame assembly/disassembly including flag detection, bit-stuffing, CRC-16 generation/checking, and address/control field parsing. The IOM-2 interface operates at up to 10 MHz with programmable clock polarity and phase, enabling direct connection to ISDN S/T bus transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166 16-bit RISC-like architecture with 5-stage pipeline and 25 ns min. instruction cycle at 40 MHz |
| USB Interface | Full-speed (12 Mbps) device-only controller with 4 configurable endpoints and 64-byte FIFO per direction |
| HDLC Engine | Hardware-accelerated frame processing with CRC-16/CCITT, bit-stuffing, and flag synchronization |
| IOM-2 Interface | Synchronous serial port compliant with ISDN IOM-2 timing, programmable clock polarity/phase, 10 MHz max rate |
| Memory | 128 KB on-chip ROM (boot + application), 8 KB on-chip RAM, external bus interface supporting up to 16 MB address space |
| Real-Time Clock | 48-bit RTC with calendar/timekeeping, cyclic/alarm interrupts, and software correction for crystal drift compensation |
| Timer Units | Dual GPT blocks: Timer Block 1 (4-channel capture/compare), Timer Block 2 (2-channel PWM + input capture) |
Pinout & Package
SAF-C165UTAH-LF V1.3 is housed in a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch) with 112 I/O pins distributed across PORT0–PORT7 and dedicated function pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.7 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or USB D+ (P0.0), USB D− (P0.1), HDLC TX (P0.2), HDLC RX (P0.3) |
| P1.0–P1.7 | Port 1 bidirectional I/O | Supports IOM-2 serial clock (P1.0), IOM-2 frame sync (P1.1), IOM-2 data (P1.2/P1.3), and HDLC CLK (P1.4) |
| P2.0–P2.7 | Port 2 bidirectional I/O | External bus address/data multiplexed lines (A0–A7/D0–D7) with configurable bus mode selection |
| XTAL1/XTAL2 | Clock oscillator inputs | Drive internal PLL for 40 MHz CPU clock from 10 MHz crystal; supports external clock input mode |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates boot sequence from ROM address 0x000000 |
Key Features
| Feature | Design Value |
|---|---|
| Hardware HDLC Protocol Engine | Offloads full frame assembly/disassembly including CRC-16, bit-stuffing, and flag detection - reduces CPU load by >70% vs. software implementation |
| USB 1.1 Device Controller | Dedicated endpoint FIFOs and descriptor management enable zero-CPU-intervention bulk/interrupt transfers at full speed |
| IOM-2 Synchronous Serial Interface | Meets ITU-T I.430 timing for S/T bus physical layer interfacing without external glue logic |
| Peripheral Event Controller (PEC) | Hardware DMA engine with 4 channels for autonomous data movement between peripherals and memory - eliminates software polling overhead |
| 48-bit Real-Time Clock | Independent 32.768 kHz timebase with calendar registers and alarm/cyclic interrupt capability - enables precise call logging and billing timestamping |
Applications
| ISDN Network Termination (NT1) | PBX Line Card Control |
|---|---|
Use Scenario: Embedded controller in ISDN NT1 devices managing S/T bus physical layer signaling and layer 2 LAPD frame handling. IC Role / Device Role / Timing Role: Primary MCU executing LAPD protocol stack with hardware HDLC acceleration and IOM-2 timing compliance. Use Value: Enables deterministic frame processing under 100 µs latency constraints while maintaining USB interface for configuration and diagnostics. |
Use Scenario: Control processor on digital line cards in enterprise PBX systems handling channelized voice/data traffic. IC Role / Device Role / Timing Role: Real-time scheduler coordinating HDLC framing, PCM channel mapping, and USB-based provisioning updates. Use Value: Integrates telephony-specific peripherals on-die, reducing BOM count and eliminating external HDLC co-processors. |
| Telecom Gateway Management | Industrial Protocol Converter |
Use Scenario: Management controller in multi-protocol gateways bridging ISDN, USB, and RS-232 interfaces for legacy equipment integration. IC Role / Device Role / Timing Role: USB device endpoint manager and HDLC-to-serial protocol translator with real-time clock timestamping. Use Value: Provides synchronized time-stamped event logging across protocols using shared 48-bit RTC and PEC-triggered data capture. |
Use Scenario: Protocol adaptation unit converting industrial fieldbus data (e.g., HDLC-based) to USB-connected host systems. IC Role / Device Role / Timing Role: Deterministic HDLC frame parser with USB bulk transfer engine for high-reliability data tunneling. Use Value: Achieves <1 ms end-to-end latency for critical telemetry packets via hardware-accelerated frame processing and PEC DMA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded telecom controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAF-C167CS-LF | Lacks integrated USB controller and HDLC engine; adds CAN 2.0B interface and enhanced PWM timers | Better suited for automotive body control where CAN dominates over ISDN/USB | Select when CAN bus connectivity is required and HDLC/USB are unnecessary |
| SAF-C164CI-LF | Includes IOM-2 and HDLC but no USB interface; smaller ROM (64 KB) and RAM (4 KB); no 48-bit RTC | Targeted at cost-sensitive ISDN terminal adapters without host USB configuration needs | Select for simplified ISDN endpoint designs where USB host interaction is omitted |
Compared with SAF-C165UTAH-LF V1.3, the C167CS-LF trades telecom-specific peripherals for automotive-grade CAN and higher PWM resolution, while the C164CI-LF reduces memory and omits USB/RTC to lower system cost - making SAF-C165UTAH-LF V1.3 uniquely balanced for USB-configurable ISDN infrastructure.
Availability
SAF-C165UTAH-LF V1.3 is available at Aetrix Electronics and suitable for ISDN NT1 deployment, PBX line card integration, and telecom gateway management requiring stable component supply and long-term lifecycle support.
Supply support for SAF-C165UTAH-LF V1.3 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 embedded controllers for industrial and communications infrastructure.
The C166 family was designed specifically for real-time embedded control in wired communications systems, emphasizing deterministic peripheral handling, telecom protocol acceleration, and robust industrial temperature operation.
FAQ
Does SAF-C165UTAH-LF V1.3 support USB host mode?
No. The integrated USB controller is strictly device-mode only, compliant with USB 1.1 full-speed specification. It lacks OTG functionality, host controller logic, or root hub support. All USB communication must be initiated by an external USB host, and the device responds to standard descriptors and class requests as defined in Chapter 15 of the datasheet.
What is the maximum achievable HDLC frame throughput?
With hardware CRC and bit-stuffing acceleration, the SAF-C165UTAH-LF V1.3 sustains 2.048 Mbps (E1 primary rate) HDLC framing with ≤5% CPU utilization. This assumes optimal PEC-assisted DMA transfers and preconfigured IOM-2 timing; actual throughput depends on frame size, interrupt latency, and software overhead in the application layer.
Can the 48-bit RTC operate independently during CPU sleep modes?
Yes. The RTC module continues running from its dedicated 32.768 kHz crystal oscillator input even when the CPU is in idle or power-down mode. Calendar registers remain accessible via SFR reads, and alarm/cyclic interrupts wake the CPU without requiring full system reset - enabling low-power monitoring in telecom standby states.
Is external bus arbitration supported for multi-master systems?
Yes. The External Bus Controller (EBC) implements full bus arbitration with dedicated ARB and BUSRQ pins, supporting up to four bus masters. Arbitration follows fixed priority (CPU > DMA > external master) with programmable wait-state insertion and READY signal synchronization as detailed in Section 10.6 of the datasheet.
SAF-C165UTAH-LF V1.3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-LQFP
- Series:
- C16xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 36MHz
- Connectivity:
- EBI/EMI, IOM-2/PCM, SPI, UART/USART, USB
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 72
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAF-C165UTAH-LF V1.3 FAQ
1.How can I place an order for SAF-C165UTAH-LF V1.3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-C165UTAH-LF V1.3 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-C165UTAH-LF V1.3 reliable?
The price and inventory of SAF-C165UTAH-LF V1.3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAF-C165UTAH-LF V1.3 is usually 5 days.
3.What payment methods are accepted for SAF-C165UTAH-LF V1.3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-C165UTAH-LF V1.3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-C165UTAH-LF V1.3?
SAF-C165UTAH-LF V1.3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-C165UTAH-LF V1.3 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-C165UTAH-LF V1.3?
For technical support, including SAF-C165UTAH-LF V1.3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-C165UTAH-LF V1.3 requirements.
6.How does Aetrix verify that SAF-C165UTAH-LF V1.3 is sourced from the original manufacturer or authorized distributors?
All SAF-C165UTAH-LF V1.3 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-C165UTAH-LF V1.3 meets industry standards.
7.What is the process for return or replacement of SAF-C165UTAH-LF V1.3?
All SAF-C165UTAH-LF V1.3 units undergo pre-shipment inspection (PSI). If there is an issue with SAF-C165UTAH-LF V1.3, 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-C165UTAH-LF V1.3 part is unused and in its original packaging.
Return procedure for SAF-C165UTAH-LF V1.3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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