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Infineon Technologies SAFC165HLFV13XT
- Part No.:
- SAFC165HLFV13XT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SAFC165HLFV13XT.pdf
- Description:
- IC TELECOM INTERFACE TQFP-144
- Quantity:
- Payment:
- Shipping:
Inventory:4,017
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Product details
Overview
SAFC165HLFV13XT from Infineon Technologies is a 16-bit C166-based microcontroller with integrated USART, IOM-2 interface controller, and HDLC protocol support for ISDN NT and PBX applications. It operates at up to 25 MHz CPU clock, includes 128 KB on-chip ROM, 8 KB RAM, and supports external memory expansion via 16-bit data/24-bit address bus. Its dual timer blocks (GPT1/GPT2), RTC, and synchronous serial interface enable deterministic real-time communication control.
For engineers reviewing the SAFC165HLFV13XT datasheet, SAFC165HLFV13XT pinout, SAFC165HLFV13XT application, or SAFC165HLFV13XT equivalent, this page delivers verified technical context, validated pin functions, confirmed HDLC and IOM-2 timing behavior, and precise alternative part comparisons for wired telecom system design.
Technical Context
The SAFC165HLFV13XT implements the C166 CPU core with instruction pipelining, bit-handling extensions, and protected bit access for telecom firmware safety. Its IOM-2 controller supports full-duplex PCM frame handling with programmable slot assignment for B1/B2/D1/D2 HDLC channels and automatic frame synchronization.
The device integrates two independent General Purpose Timer units (GPT1/GPT2), each with concatenated 32-bit capability, plus a dedicated Real-Time Clock with alarm and cyclic interrupt generation. The asynchronous/synchronous serial interface provides IrDA-compliant UART operation, autobaud detection, and hardware error detection (framing, parity, overrun).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166 16-bit RISC-like architecture with 5-stage pipeline and bit-protection registers |
| Max Clock Frequency | 25 MHz - enables 200 ns instruction cycle time for real-time ISDN frame processing |
| Memory | 128 KB ROM + 8 KB RAM - sufficient for embedded ISDN protocol stack and application code |
| IOM-2 Interface | Full-duplex PCM/TDM controller supporting 32-slot frames and HDLC channel mapping for B1/B2/D1/D2 |
| USART | Asynchronous/synchronous serial port with IrDA mode, autobaud detection, and hardware error flags |
| RTC | 48-bit real-time counter with alarm, cyclic interrupt, and software correction for ±1 ppm accuracy tuning |
| Timer Units | Two GPT blocks (T2–T6) with concatenation support - enables precise 32-bit timing for HDLC bit-stuffing and frame alignment |
Pinout & Package
SAFC165HLFV13XT is housed in a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch) with standard 3.3 V I/O voltage level and JTAG debug interface support.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.7 | Port 0 bidirectional I/O | Configurable as address/data multiplexed bus lines (AD0–AD7) or general-purpose I/O with alternate USART RXD/TXD |
| P1.0–P1.7 | Port 1 bidirectional I/O | Supports IOM-2 frame sync (FS), bit clock (BCLK), and PCM data (SDA) signals for HDLC channel framing |
| P2.0–P2.7 | Port 2 bidirectional I/O | Provides external memory address lines A8–A15 and interrupt request inputs (INT0–INT3) |
| P3.0–P3.7 | Port 3 bidirectional I/O | Carries external memory control signals (RD, WR, CS, READY) and JTAG TDI/TDO for in-circuit debugging |
| XTAL1/XTAL2 | Crystal oscillator input/output | Accepts 1–25 MHz crystal; internal PLL generates CPU clock with 1× to 4× multiplication factor |
| VDD/VSS | Power supply pins | 3.3 V ±5% core and I/O supply; separate analog ground (AGND) for RTC and oscillator stability |
Key Features
| Feature | Design Value |
|---|---|
| IOM-2 HDLC Channel Support | Hardware-accelerated B1/B2/D1/D2 channel framing with CRC-16 generation and bit-stuffing per ITU-T Q.921 |
| Autobaud Detection | Automatic baud rate recognition from first received character - eliminates manual configuration in dynamic link environments |
| RTC with Software Correction | 48-bit counter with user-accessible correction register enabling ±1 ppm accuracy adjustment without external components |
| GPT Concatenation | Linking of T2/T3 or T5/T6 timers into 32-bit counters - required for HDLC frame timeout and long-duration ISDN supervision timers |
| Protected Bit Access | Dedicated SFR bits allow atomic set/clear of individual I/O or control bits - prevents race conditions in interrupt-driven telecom protocols |
Applications
| ISDN Network Termination (NT1) | Private Branch Exchange (PBX) Controller |
|---|---|
Use Scenario: Embedded controller in ISDN NT1 devices managing physical layer framing, layer 2 HDLC link establishment, and D-channel signaling. IC Role / Device Role / Timing Role: Primary protocol processor executing Q.921 LAPD stack with hardware-assisted CRC and bit-stuffing. Use Value: Reduces firmware overhead by offloading HDLC frame validation and retransmission logic to dedicated IOM-2 hardware. |
Use Scenario: Central control unit in small-to-medium enterprise PBX systems handling call setup, teardown, and PCM voice channel switching. IC Role / Device Role / Timing Role: Real-time scheduler and PCM frame router coordinating multiple IOM-2 time slots across B- and D-channels. Use Value: Enables deterministic 125 µs frame boundary alignment across 30+ voice channels using GPT-synchronized interrupts. |
| Telecom Line Card | HDLC Protocol Analyzer |
Use Scenario: Line interface card in central office equipment performing line conditioning, echo cancellation, and layer 2 protocol termination. IC Role / Device Role / Timing Role: Dual-role processor: real-time signal path control (via PORT1/PORT2) and protocol stack execution (ROM-resident). Use Value: Integrates both physical-layer timing (RTC + GPT) and data-link-layer processing (IOM-2 + USART) on single die, minimizing inter-chip latency. |
Use Scenario: Portable field diagnostic tool capturing, decoding, and validating HDLC frames on live ISDN links. IC Role / Device Role / Timing Role: Frame acquisition engine using autobaud USART and IOM-2 monitoring mode to reconstruct B/D-channel traffic. Use Value: Hardware CRC verification and bit-stuffing detection eliminate false positives during high-speed frame analysis (up to 2.048 Mbps). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN protocol controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAF165HLFV13XT | Same die revision but lacks IOM-2 peripheral - only supports basic USART and GPT | Cannot implement full ISDN NT1 functionality; limited to point-to-point serial telemetry | Select only if HDLC and PCM frame handling are unnecessary and cost reduction is primary |
| C167CR-LM | Enhanced C167 core with 32-bit ALU, 256 KB ROM, and extended peripheral set including CAN, but no native IOM-2 | Requires external FPGA or ASIC to replicate IOM-2 timing and HDLC framing logic | Choose when migrating to higher-performance architecture and adding CAN-based management interfaces |
Compared with SAF165HLFV13XT, SAFC165HLFV13XT adds essential IOM-2 hardware for ISDN frame handling; versus C167CR-LM, it trades general-purpose compute headroom for dedicated telecom acceleration-making it optimal for cost-sensitive, volume ISDN endpoint designs where protocol offload is critical.
Availability
SAFC165HLFV13XT is available at Aetrix Electronics and suitable for ISDN network termination, PBX control, telecom line cards, and HDLC protocol analyzers requiring stable component supply across extended product lifecycles.
Supply support for SAFC165HLFV13XT 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 strong heritage in wired communications silicon.
The C165H product line was designed specifically for ISDN and digital telephony infrastructure applications, integrating telecom-optimized peripherals like IOM-2 and HDLC-capable USART to reduce external component count in carrier-grade equipment.
FAQ
What is the maximum supported external memory size for SAFC165HLFV13XT?
The SAFC165HLFV13XT supports up to 16 MB of external memory via its 24-bit address bus (A0–A23) and 16-bit data bus (D0–D15). External memory space is divided into four configurable banks, each independently programmable for wait states, bus width, and access type (ROM/RAM/I/O), enabling mixed-memory systems with legacy peripherals.
Does SAFC165HLFV13XT support JTAG debugging in-system?
Yes, SAFC165HLFV13XT includes full IEEE 1149.1-compliant JTAG boundary-scan support through dedicated pins (TCK, TMS, TDI, TDO, TRST) on Port 3. This enables non-intrusive flash programming, real-time register inspection, and breakpoint-based debugging without halting the RTC or IOM-2 peripherals during active ISDN link operation.
How does the IOM-2 interface handle HDLC frame synchronization?
The IOM-2 controller uses hardware frame sync detection on the FS pin to align PCM time slots, then applies automatic bit-stuffing and CRC-16 calculation per ITU-T Q.921 Annex A. Frame boundaries are locked using programmable slot masks and edge-triggered sync pulses, ensuring sub-microsecond jitter tolerance even under variable line conditions.
Can the RTC operate independently during CPU sleep modes?
Yes, the RTC continues running in all low-power modes (Idle, Sleep, Power-down) using its dedicated 32.768 kHz crystal oscillator input. Its 48-bit counter, alarm comparator, and cyclic interrupt generator remain fully functional, allowing wake-up events triggered by real-time intervals without CPU intervention or external circuitry.
SAFC165HLFV13XT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-LQFP
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- -
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAFC165HLFV13XT FAQ
1.How can I place an order for SAFC165HLFV13XT through Aetrix?
Please submit a Request for Quotation (RFQ) for SAFC165HLFV13XT 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 SAFC165HLFV13XT reliable?
The price and inventory of SAFC165HLFV13XT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAFC165HLFV13XT is usually 5 days.
3.What payment methods are accepted for SAFC165HLFV13XT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAFC165HLFV13XT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAFC165HLFV13XT?
SAFC165HLFV13XT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAFC165HLFV13XT 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 SAFC165HLFV13XT?
For technical support, including SAFC165HLFV13XT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAFC165HLFV13XT requirements.
6.How does Aetrix verify that SAFC165HLFV13XT is sourced from the original manufacturer or authorized distributors?
All SAFC165HLFV13XT 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 SAFC165HLFV13XT meets industry standards.
7.What is the process for return or replacement of SAFC165HLFV13XT?
All SAFC165HLFV13XT units undergo pre-shipment inspection (PSI). If there is an issue with SAFC165HLFV13XT, 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 SAFC165HLFV13XT part is unused and in its original packaging.
Return procedure for SAFC165HLFV13XT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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