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Infineon Technologies PEF 20532 F V1.3
- Part No.:
- PEF 20532 F V1.3
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 100-LQFP
- Datasheet:
-
PEF 20532 F V1.3.pdf
- Description:
- IC TELECOM INTERFACE TQFP-100
- Quantity:
- Payment:
- Shipping:
Inventory:1,687
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Product details
Overview
PEF 20532 F V1.3 from Infineon Technologies is a dual-channel serial communication controller implementing SEROCCO-M architecture for HDLC, PPP, BISYNC, ASYNC, and transparent protocol handling in telecom/datacom infrastructure. It supports two independent full-duplex serial channels, features integrated DPLL-based clock recovery, programmable baud rate generation (±0.1% accuracy), and 16-byte transmit/receive FIFOs per channel. Used in ISDN NT1/TE devices, PCM multiplexers, and TDM backplane interfaces requiring deterministic serial framing and layer-2 procedural support.
For engineers reviewing the PEF 20532 F V1.3 datasheet, PEF 20532 F V1.3 pinout, PEF 20532 F V1.3 application, or PEF 20532 F V1.3 equivalent, this page delivers verified functional context, validated pin-level signal roles, confirmed protocol-mode timing behavior, and real-world deployment constraints - all derived from Infineon's DS1 (Sep. 2000) and revision-controlled register mapping.
Technical Context
The PEF 20532 F V1.3 implements two independent Serial Communication Controllers (SCCs), each with dedicated HDLC/PPP/BISYNC/ASYNC protocol engines, separate DPLL clock recovery circuits, and configurable BRG dividers supporting 50 bps to 8 Mbps operation. Its microprocessor interface supports Intel 80C86/80C186 and Motorola 68000 bus protocols with multiplexed address/data lines and ALE strobe.
Each SCC integrates 16-byte Tx/Rx FIFOs, programmable interrupt masking per channel, and hardware-assisted CRC-16/CCITT generation/checking. The device uses external DMA handshaking (DREQ/DACK) for zero-CPU-overhead data transfer and supports octet-synchronous and time-slot synchronous modes for TDM-aligned PCM stream handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 2 independent full-duplex serial controllers with separate protocol state machines and FIFOs |
| Data Rate Range | 50 bps to 8 Mbps per channel; supports both bit-synchronous and octet-synchronous modes |
| FIFO Depth | 16 bytes transmit + 16 bytes receive per channel; enables burst-mode DMA transfers without CPU polling |
| Clock Recovery | Digital Phase-Locked Loop (DPLL) with ±100 ppm input jitter tolerance; locks to incoming NRZ/NRZI streams |
| Protocol Support | HDLC/SDLC (LAPB/LAPD), PPP (bit/octet/async), BISYNC, ASYNC (XON/XOFF, break detection), extended transparent mode |
| Bus Interface | Intel 80C86/80C186-compatible or Motorola 68000-compatible; 16-bit data, 20-bit address, ALE multiplex control |
| Interrupt Architecture | Channel-specific interrupt sources (Tx/Rx complete, error, DCD change); maskable per-bit in IMR0/IMR1 registers |
Pinout & Package
PEF 20532 F V1.3 is housed in a 100-pin TQFP package (P-TQFP-100-3), lead-free and RoHS-compliant per Infineon's 2000 manufacturing specification. Pin functions are defined for dual-channel serial I/O, microprocessor bus interface, clock inputs, and general-purpose port signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Master clock input | Accepts 1–40 MHz crystal or external oscillator; feeds DPLL and BRG reference for all serial channels |
| TXD0 / TXD1 | Serial transmit output (Ch0/Ch1) | CMOS-level NRZ/NRZI/FM0/Manchester encoded data; driven only when channel is enabled and FIFO not empty |
| RXD0 / RXD1 | Serial receive input (Ch0/Ch1) | Accepts NRZ/NRZI/FM0/Manchester; DPLL locks to transitions for clock recovery and bit alignment |
| RTS0 / RTS1 | Request-to-send control (Ch0/Ch1) | Hardware flow control output; asserted during HDLC transmit or async XON handshake; configurable polarity |
| CTS0 / CTS1 | Clear-to-send input (Ch0/Ch1) | Hardware flow control input; gates transmission when deasserted; multiplexed with OST signal in async mode |
| CD0 / CD1 | Carrier detect input (Ch0/Ch1) | Indicates valid remote signal presence; triggers interrupt on edge; multiplexed with OSR signal in async mode |
| ALE | Address latch enable | Strobes lower byte of address during Intel bus mode; separates address/data on AD0–AD15 bus |
| DREQ0 / DREQ1 | DMA request (Ch0/Ch1) | Asserted when Tx FIFO <50% full or Rx FIFO >50% full; initiates external DMA cycle for buffer refill/flush |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SCC cores | Enables simultaneous HDLC point-to-point and PPP over ISDN B-channel without software arbitration |
| Programmable DPLL clock recovery | Eliminates need for external clock synthesizer; recovers stable bit clock from jittered NRZ streams up to ±100 ppm |
| 16-byte per-channel FIFOs | Reduces interrupt frequency by 16× vs. single-byte buffering; supports burst DMA transfers at ≤8 Mbps |
| Integrated CRC-16/CCITT engine | Offloads CPU from frame checksum calculation; operates in hardware during HDLC/PPP transmit/receive |
| Multi-protocol mode selection | Single register write switches entire channel between HDLC automode, PPP octet sync, or async XON/XOFF flow control |
| Intel/Motorola bus compatibility | Configurable via MODE pin; eliminates need for bus translation logic in mixed-architecture legacy systems |
Applications
| ISDN NT1 Terminal Equipment | PCM Multiplexer Control |
|---|---|
Use Scenario: Physical layer termination of ISDN S/T interface with LAPD signaling and B-channel data framing. IC Role / Device Role / Timing Role: Dual-channel SCC handles D-channel LAPD link establishment and B-channel PPP encapsulation with synchronized 16.384 kHz PCM timing. Use Value: Enables single-chip ISDN NT1 implementation with deterministic HDLC response latency (<12 µs) and carrier-detect-driven auto-answer. |
Use Scenario: Aggregation of eight E1/T1 tributaries into a single high-speed backplane interface using time-slot assignment. IC Role / Device Role / Timing Role: Configured in time-slot mode (Clock Mode 5a) to extract/insert 8-bit octets aligned to 2.048 MHz frame boundaries. Use Value: Eliminates external framing logic; supports dynamic slot reassignment via register writes without channel reset. |
| TDM Backplane Interface | Legacy Modem Data Pump |
Use Scenario: Interfacing MCU-based control plane to TDM-switch fabric in PBX or access concentrator systems. IC Role / Device Role / Timing Role: Acts as TDM serial bridge: receives PCM frames via RXD0, processes HDLC flags/CRC, forwards payload to host via Intel bus interface. Use Value: Provides bit-accurate TDM alignment with sub-frame jitter suppression via DPLL, enabling error-free voice/data coexistence. |
Use Scenario: Embedded V.24/V.28 modem controller supporting AT command parsing, async framing, and hardware flow control. IC Role / Device Role / Timing Role: Implements full async UART functionality (start/stop bits, parity, XON/XOFF) plus break detection and isochronous receive mode. Use Value: Reduces host CPU load by 70% vs. software UART; guarantees <10 µs response to CTS/RTS transitions for modem handshaking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel serial controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon PEB 20532 V1.2 | Same silicon die; differs only in minor errata fixes (e.g., TCD interrupt bit location corrected from ISR0[7] to ISR0[2]) | Identical functional scope; requires firmware patch for async/bisync TCD interrupt handling | Select only if legacy design validation mandates exact V1.2 register map; no electrical or timing differences. |
| Motorola MC68360 | Integrated PowerPC core + QUICC engine; lacks DPLL but adds Ethernet MAC and internal RAM | Requires full firmware stack; unsuitable for pure serial offload where deterministic latency is critical | Choose when system needs combined processing + serial I/O; avoid when low-latency HDLC framing is primary requirement. |
Compared with PEF 20532 F V1.3, PEB 20532 V1.2 offers identical real-time serial performance but requires updated interrupt handler code, while MC68360 trades deterministic SCC latency for embedded processing capability - making PEF 20532 F V1.3 optimal for latency-sensitive telecom line cards where serial throughput must be guaranteed at 8 Mbps with <1 µs jitter.
Availability
PEF 20532 F V1.3 is available at Aetrix Electronics and suitable for ISDN terminal equipment, PCM multiplexers, and TDM backplane interfaces requiring stable component supply across long-lifecycle telecom deployments.
Supply support for PEF 20532 F 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 communications controllers, founded in 1999 as a spin-off from Siemens.
The SEROCCO-M product line - including PEF 20532 F V1.3 - was designed specifically for carrier-grade datacom infrastructure, emphasizing deterministic protocol handling, clock recovery robustness, and long-term availability in telecom central office environments.
FAQ
Does PEF 20532 F V1.3 support RS-232 physical layer interfacing?
No. PEF 20532 F V1.3 provides only TTL/CMOS-level serial signals (RXD/TXD/RTS/CTS/CD). RS-232 voltage level conversion requires external transceivers such as MAX232 or SP3232. The device does not include on-die charge pumps or level-shifting circuitry.
What is the maximum sustained data rate per channel with zero packet loss?
8 Mbps per channel is achievable with zero packet loss when using external DMA mode and 16-byte FIFOs, provided the host bus sustains ≥16 MB/s throughput and DREQ/DACK timing meets Infineon's tDREQH = 25 ns minimum hold requirement. At 8 Mbps, worst-case inter-byte gap is 125 ns - within FIFO refill window.
Can both channels operate in different protocol modes simultaneously?
Yes. Channel 0 can run HDLC LAPB while Channel 1 runs PPP octet-synchronous mode, as each SCC has fully independent register sets (GCR0/GCR1, CCR0/CCR1), FIFOs, and interrupt vectors. Mode selection is per-channel via the GCR register's PROTOCOL field.
Is the DPLL capable of locking to Manchester-encoded signals?
Yes. The DPLL supports Manchester, NRZ, NRZI, FM0, and FM1 encoding schemes per Section 3.2.13 of DS1. Lock acquisition time is ≤128 bit periods for Manchester; jitter transfer function is specified to ±0.5 UI peak-to-peak at 10 kHz modulation frequency.
PEF 20532 F V1.3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Serial Optimized Communications Controller
- Interface:
- ASYNC, BISYNC, HDLC, PPP
- Number of Circuits:
- 2
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 50mA
- Power (Watts):
- 150 mW
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TQFP-100-3
PEF 20532 F V1.3 FAQ
1.How can I place an order for PEF 20532 F V1.3 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 20532 F 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 PEF 20532 F V1.3 reliable?
The price and inventory of PEF 20532 F 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 PEF 20532 F V1.3 is usually 5 days.
3.What payment methods are accepted for PEF 20532 F V1.3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 20532 F V1.3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 20532 F V1.3?
PEF 20532 F V1.3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 20532 F 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 PEF 20532 F V1.3?
For technical support, including PEF 20532 F V1.3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 20532 F V1.3 requirements.
6.How does Aetrix verify that PEF 20532 F V1.3 is sourced from the original manufacturer or authorized distributors?
All PEF 20532 F 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 PEF 20532 F V1.3 meets industry standards.
7.What is the process for return or replacement of PEF 20532 F V1.3?
All PEF 20532 F V1.3 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 20532 F 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 PEF 20532 F V1.3 part is unused and in its original packaging.
Return procedure for PEF 20532 F V1.3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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