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Infineon Technologies SAB 82526 N V2.2
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- Part No.:
- SAB 82526 N V2.2
- Manufacturer:
- Infineon Technologies
- Category:
- Specialized
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
SAB 82526 N V2.2.pdf
- Description:
- IC INTERFACE SPECIALIZED 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
SAB 82526 N V2.2 from Siemens AG is a single-channel High-Level Serial Communication Controller Extended (HSCX) IC implementing HDLC Layer-2 protocol handling with integrated DPLL clock recovery, 64-byte TX/RX FIFOs, and 8-bit demultiplexed bus interface. It supports LAPB, LAPD, and SDLC-NRM protocols at up to 4 Mbit/s data rate in P-LCC-44 package, deployed in ISDN terminal adapters and packet-switched telecom equipment.
For engineers reviewing the SAB 82526 N V2.2 datasheet, SAB 82526 N V2.2 pinout, SAB 82526 N V2.2 application, or SAB 82526 N V2.2 equivalent, key selection criteria include HDLC channel count, DPLL-enabled clock recovery per channel, DMA/interrupt data transfer support, and compatibility with Intel/Motorola 8/16-bit microprocessor buses.
Technical Context
The SAB 82526 implements one full-duplex HDLC channel with dedicated command/status registers (SP-REG), programmable time-slot assignment (1–256 bits), and independent baudrate generation. Its DPLL recovers clock from incoming serial data with jitter tolerance compliant with ITU-T G.703 for E1/T1 framing.
It operates in Auto-mode (LAPB/LAPD/SDLC), Transparent modes (fully bit-transparent transmission), and Extended Transparent modes with cyclic or continuous DMA-driven output. The 8-bit demultiplexed bus interface supports both Intel- and Motorola-style control signaling (WR/IC0, RD/IC1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HDLC Channels | 1 independent full-duplex channel (channel B only) |
| Max Data Rate | 4 Mbit/s - supports E1 (2.048 Mbps) and T1 (1.544 Mbps) line rates with margin |
| FIFO Depth | 64 bytes per direction - enables burst transfers without CPU intervention |
| Bus Interface | 8-bit demultiplexed - eliminates external address latching, compatible with 80C86/68000 systems |
| DPLL Support | On-chip digital phase-locked loop per channel - recovers clock from NRZ data without external crystal |
| Power Consumption | 25 mW active / 4 mW standby at 4 MHz - enables low-power telecom edge node designs |
| Protocol Support | LAPB (X.25), LAPD (ISDN D-channel), SDLC-NRM - handles I-, S-, and U-frames autonomously |
Pinout & Package
P-LCC-44 (Plastic Leaded Chip Carrier, 44-pin, surface-mount, JEDEC MO-115AA compliant). Body size: 16.6 × 16.6 mm, lead pitch: 0.8 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 44 | VDD / GND | Power supply (5 V) and ground pins - decoupling required per datasheet layout guidelines |
| 2–5, 7–17, 39–43 | D0–D7, A0–A6, CS, WR/IC0, RD/IC1 | 8-bit data bus, 7-bit address bus, chip select, and dual-function control lines - supports Intel/Motorola timing |
| 18–28, 34–38 | IM1, ALE/IM0, INT, DRQTA, DRQRA, DRQTB, DRQRB, DACKA, DACKB | Interrupt and DMA handshake signals - enables zero-wait-state block transfers via DMA channel arbitration |
| 29, 30, 36 | N.C. | No-connect pins - must be left unconnected per silicon revision V2.2 |
| 31–35, 37 | AxCLKA/B, TxCLKA/B, RxCLKA/B, RxDB, TxDB, RTSB, CTSB/CxDB | Channel B serial interface clocks and data/control lines - RxDB/TxDB are TTL-level bidirectional data paths |
Key Features
| Feature | Design Value |
|---|---|
| Fully transparent mode | Bit-for-bit pass-through without flag detection or CRC insertion - used for proprietary protocol tunneling |
| Programmable time-slot length | 1–256 bits per slot - enables custom TDM frame alignment in PCM-based multiplexers |
| Receive length check | Hardware validation of frame byte count against programmed maximum - prevents buffer overflow on malformed packets |
| One-bit insertion | Automatic 0-bit insertion after five consecutive 1s - satisfies HDLC bit-stuffing requirement per ISO/IEC 3309 |
| Data inversion | Configurable polarity inversion on Tx/Rx paths - matches legacy line driver/receiver signal conventions |
Applications
| ISDN Terminal Adapter | Packet-Switched Router Interface |
|---|---|
Use Scenario: Connecting analog PBX or fax machines to ISDN basic rate interface (BRI) using LAPD protocol. IC Role / Device Role / Timing Role: HDLC controller for D-channel signaling stack, performing LAPD frame assembly/disassembly and CRC checking. Use Value: Offloads LAPD state machine execution from host CPU, reducing firmware complexity and interrupt load by >70%. | Use Scenario: Bridging X.25 packet networks to serial leased lines in industrial SCADA gateways. IC Role / Device Role / Timing Role: LAPB-compliant data link layer engine with automatic retry and modulo-128 sequence numbering. Use Value: Guarantees reliable frame delivery over noisy RS-485 links without requiring host-layer retransmission logic. |
| PCM Time-Slot Interchanger | T1/E1 Line Interface Unit |
Use Scenario: Dynamic allocation of 64 kbit/s time slots across multiple voice/data channels in digital loop carrier systems. IC Role / Device Role / Timing Role: Time-slot oriented HDLC controller with programmable slot length and independent channel clocking. Use Value: Enables real-time reconfiguration of TDM frames via register writes, eliminating need for FPGA-based slot mapping. | Use Scenario: Physical layer termination for E1 lines in remote access servers with embedded channelized interface. IC Role / Device Role / Timing Role: DPLL-based clock recovery unit synchronized to incoming E1 frame sync, feeding recovered clock to system timing logic. Use Value: Eliminates external clock recovery IC (e.g., DS2175), reducing BOM count and board area by 35%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDLC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Z8536 | Single-channel HDLC controller with 16-byte FIFOs, no on-chip DPLL, requires external clock source | Limited to fixed-rate synchronous links without clock recovery capability | Select when system already provides stable clock and lower FIFO depth suffices |
| Intel 8273 | Two-channel HDLC controller, 32-byte FIFOs, supports SDLC only (no LAPD/LAPB) | Not suitable for ISDN D-channel or X.25 stack implementation | Select only for legacy SDLC-only industrial telemetry where dual-channel operation is required |
Compared with Z8536 and Intel 8273, the SAB 82526 N V2.2 uniquely combines single-channel HDLC processing with integrated DPLL clock recovery, 64-byte FIFOs, and native LAPD support-making it the only option among the three qualified for ISDN terminal adapter designs requiring autonomous D-channel signaling.
Availability
SAB 82526 N V2.2 is available at Aetrix Electronics and suitable for ISDN terminal adapters, T1/E1 line interface units, PCM time-slot interchangers, and packet-switched router interfaces requiring stable component supply and long-term obsolescence management.
Supply support for SAB 82526 N V2.2 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
Siemens AG Semiconductor Group (now Infineon Technologies) was a leading European semiconductor manufacturer specializing in industrial, telecom, and automotive ICs before spinning off its chip business in 1999.
The SAB 82526 belongs to the HSCX (High-Level Serial Communication Controller Extended) product line, designed specifically for autonomous HDLC protocol handling in telecom infrastructure equipment requiring minimal host CPU intervention.
FAQ
What is the functional difference between SAB 82525 and SAB 82526?
The SAB 82525 implements two independent full-duplex HDLC channels (A and B), while the SAB 82526 contains only channel B. Both share identical pinout, software interface, and feature set per channel-including DPLL, 64-byte FIFOs, and LAPB/LAPD/SDLC support-but the 82526 reduces die size and power for single-channel applications.
Does SAB 82526 N V2.2 support external crystal oscillators for clock generation?
Yes - the SAB 82526 supports both external crystal (via quartz terminals per Section 10 of the manual) and external clock input. When using crystal, it drives a Pierce oscillator circuit; when using external clock, it accepts TTL/CMOS-level signals up to 4 MHz on AxCLKB, bypassing internal oscillator circuitry.
Can SAB 82526 operate in half-duplex SDLC-NRM mode?
Yes - Section 3.2 of the manual confirms SDLC-NRM (Normal Response Mode) operation, including poll/response frame handling, modulo-8 or modulo-128 sequence numbering, and programmable timeout/retry conditions, all executed autonomously without host CPU involvement in frame assembly or CRC calculation.
Is the P-LCC-44 package RoHS-compliant?
No - the SAB 82526 N V2.2 was manufactured prior to RoHS Directive 2002/95/EC (effective 2006) and contains lead in solder and die attach materials. It complies with CECC 00802 and Siemens' 1994 environmental specifications, but does not meet current RoHS-6 or REACH SVHC requirements.
SAB 82526 N V2.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- Serial
- Voltage - Supply:
- 4.75V ~ 5.25V
- Supplier Device Package:
- P-LCC-44-1
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
SAB 82526 N V2.2 FAQ
1.How can I place an order for SAB 82526 N V2.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SAB 82526 N V2.2 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 SAB 82526 N V2.2 reliable?
The price and inventory of SAB 82526 N V2.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAB 82526 N V2.2 is usually 5 days.
3.What payment methods are accepted for SAB 82526 N V2.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAB 82526 N V2.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAB 82526 N V2.2?
SAB 82526 N V2.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAB 82526 N V2.2 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 SAB 82526 N V2.2?
For technical support, including SAB 82526 N V2.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAB 82526 N V2.2 requirements.
6.How does Aetrix verify that SAB 82526 N V2.2 is sourced from the original manufacturer or authorized distributors?
All SAB 82526 N V2.2 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 SAB 82526 N V2.2 meets industry standards.
7.What is the process for return or replacement of SAB 82526 N V2.2?
All SAB 82526 N V2.2 units undergo pre-shipment inspection (PSI). If there is an issue with SAB 82526 N V2.2, 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 SAB 82526 N V2.2 part is unused and in its original packaging.
Return procedure for SAB 82526 N V2.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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