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Microchip Technology PM5384-NGI
- Part No.:
- PM5384-NGI
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 196-LBGA
- Datasheet:
-
PM5384-NGI.pdf
- Description:
- IC TELECOM INTERFACE 155 MBIT
- Quantity:
- Payment:
- Shipping:
Inventory:506
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Product details
Overview
PM5384-NGI from PMC-Sierra is a single-port SONET/SDH 1x155 Mbps (OC-3/STM-1) User Network Interface ASSP, integrating full SONET/SDH section, line, and path layer processing with ATM UTOPIA Level 2 and Packet over SONET/SDH (POS-PHY Level 2) system interfaces. It supports framed jitter tolerance per BellCore GR-1377-CORE, APS switching, path trace, BIP-8/BIP-24 error monitoring, and operates at 3.3 V supply with -40°C to +85°C industrial temperature range.
For engineers reviewing the PM5384-NGI datasheet, PM5384-NGI pinout, PM5384-NGI application, or PM5384-NGI equivalent, this device serves as a telecom-standard line interface IC for OC-3 add/drop multiplexers, SDH ADMs, and multiservice access platforms requiring SONET/SDH framing, overhead processing, and dual-mode (ATM/POS) packet transport.
Technical Context
The PM5384-NGI implements a complete SATURN® architecture with independent receive and transmit SONET/SDH framers, including CRSI (Receive Line Interface) and CSPI (Transmit Line Interface), RSOP/RLOP/RPOP and TSOP/TLOP/TPOP overhead processors, and dedicated RASE (APS/Sync/BER Monitor) and WANS (WAN Synchronization) blocks. It supports both SONET and SDH modes via register configuration.
Its dual-system interfaces-UTOPIA Level 2 (16-bit, 50 MHz) for ATM cell transport and POS-PHY Level 2 (16-bit, 50 MHz) for IP-over-SONET frames-enable seamless integration into edge routers and broadband access concentrators. JTAG TAP and microprocessor interface (8/16-bit, 33 MHz) provide full in-system control and diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | OC-3c/STM-1 (155.52 Mbps) line rate; enables direct connection to optical transceivers without external clock multiplication. |
| System Interfaces | UTOPIA Level 2 (16-bit, 50 MHz) and POS-PHY Level 2 (16-bit, 50 MHz); supports concurrent ATM and IP packet transport on same port. |
| Overhead Processing | Full Section (B1), Line (B2), and Path (B3) BIP error monitoring; J0/Z0, S1, K1/K2, and DCC extraction/insertion per GR-253-CORE/ETSI ETS 300 399. |
| Temperature Range | -40°C to +85°C industrial grade; qualified for uncontrolled telco central office and outdoor cabinet deployments. |
| Supply Voltage | 3.3 V ± 5% core and I/O; eliminates need for multiple voltage rails in compact telecom line cards. |
| Jitter Tolerance | Complies with BellCore GR-1377-CORE framed jitter tolerance mask; ensures robust operation under network stress conditions. |
| APS Support | Automatic Protection Switching per ITU-T G.841/G.873; handles K1/K2 byte interpretation and switch initiation with <50 ms switchover. |
Pinout & Package
PM5384-NGI is housed in a 256-pin Fine-Pitch Ball Grid Array (FBGA) package with 1.0 mm ball pitch, designed for high-density telecom PCB layouts and thermal dissipation in fanless systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Reference Clock Input | Accepts 155.52 MHz differential PECL clock for line timing recovery; critical for SONET frame synchronization. |
| CRSIP/N | Receive Line Data Input | Differential PECL input for incoming OC-3 signal; includes built-in CDR and descrambler. |
| CSPIP/N | Transmit Line Data Output | Differential PECL output driving OC-3 line; supports programmable pre-emphasis for backplane trace compensation. |
| UTX[15:0] | UTOPIA Transmit Data Bus | 16-bit parallel interface for ATM cell payload delivery at up to 50 MHz; supports cell delineation and HEC generation. |
| URX[15:0] | UTOPIA Receive Data Bus | 16-bit parallel interface for ATM cell ingress; includes cell header error check (HEC) correction and VPI/VCI translation. |
| POS_TX[15:0] | POS Transmit Data Bus | 16-bit parallel interface for POS frame transmission; handles HDLC-like framing and CRC-32 insertion. |
| POS_RX[15:0] | POS Receive Data Bus | 16-bit parallel interface for POS frame reception; performs CRC-32 validation and frame alignment. |
| MPU_A[15:0] | Microprocessor Address Bus | 16-bit multiplexed address/data bus supporting 8/16-bit host CPU access to 64 KB internal register space. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated SONET/SDH Framer | Fully compliant OC-3/STM-1 framer with automatic mode detection (SONET vs. SDH) and configurable overhead byte handling. |
| Dual-Mode System Interface | Simultaneous UTOPIA L2 and POS-PHY L2 support enables flexible migration between ATM and IP-based transport architectures. |
| APS Engine with K1/K2 Parsing | Hardware-accelerated APS state machine interprets K1/K2 bytes and initiates protection switching without host CPU intervention. |
| Path & Section Trace Buffers | Dedicated SPTB and SSTB registers store and compare J0/Z0 and S1 trace identifiers, enabling end-to-end circuit verification. |
| Bit Error Monitoring | Real-time BIP-8 (path), BIP-24 (line), and BIP-1 (section) error counters accessible via register reads for performance reporting. |
| JTAG Boundary Scan | IEEE 1149.1-compliant TAP controller enables board-level test, debug, and in-system programming of configuration registers. |
Applications
| OC-3 Add/Drop Multiplexer | DSLAM Line Card |
|---|---|
|
Use Scenario: Aggregating multiple T1/E1 circuits into a single OC-3 uplink for metro ring interconnection. IC Role / Device Role / Timing Role: SONET framer and overhead processor handling section/line/path layer functions, plus ATM/POS transport interface. Use Value: Eliminates discrete framer + overhead processor + interface ASIC combination, reducing BOM count and power by >40% versus multi-chip solutions. |
Use Scenario: Providing DSL aggregation with native SONET backhaul in carrier-class DSLAMs. IC Role / Device Role / Timing Role: Line interface IC performing clock recovery, framing, DCC channel termination, and ATM cell mapping for ADSL traffic. Use Value: Enables direct ATM cell transport over SONET without external segmentation/reassembly, preserving QoS guarantees for voice/video services. |
| MSPP Edge Node | Enterprise SDH ADM |
|
Use Scenario: Multiservice provisioning platform supporting legacy TDM, ATM, and Ethernet over SONET/SDH. IC Role / Device Role / Timing Role: SATURN®-based user network interface providing unified framing, APS, and dual-mode (ATM/POS) packet transport. Use Value: Allows single hardware design to support both ATM and IP service provisioning via software-selectable UTOPIA/POS modes. |
Use Scenario: Small-form-factor SDH add/drop multiplexer for enterprise campus backbone networks. IC Role / Device Role / Timing Role: STM-1 framer with embedded path trace (J1), section trace (J0), and BIP-8 monitoring for service-level SLA verification. Use Value: Provides carrier-grade performance monitoring and fault isolation down to individual VC-4 paths without external test equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SONET/SDH framer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PMC-Sierra PM5383-NGI | Single-port OC-3 framer without integrated APS engine or WANS block; lacks K1/K2 parsing and synchronization holdover capability. | Suitable only for unprotected point-to-point links; cannot implement 1+1 or 1:1 protection schemes. | Select PM5383-NGI only when APS is not required and cost reduction is prioritized over redundancy. |
| Infineon SPO2000-3 | OC-3 framer with integrated PHY and clock synthesizer; requires external PLL for jitter cleanup and lacks POS-PHY interface. | Targeted at simpler SDH terminal multiplexers; does not support concurrent ATM and IP packet transport. | Choose SPO2000-3 when integrated clock synthesis is preferred and UTOPIA-only interface suffices. |
Compared with PM5383-NGI and SPO2000-3, the PM5384-NGI uniquely delivers full APS automation, dual-mode (ATM/POS) transport, and SATURN®-level overhead intelligence - making it the only option for carrier-grade ADMs requiring service-aware protection and multiservice flexibility.
Availability
PM5384-NGI is available at Aetrix Electronics and suitable for OC-3 add/drop multiplexers, DSLAM line cards, and multiservice provisioning platforms requiring stable component supply and long-term lifecycle assurance.
Supply support for PM5384-NGI 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
PMC-Sierra, Inc. was a fabless semiconductor company headquartered in Burnaby, BC, Canada, specializing in high-speed communications ICs for telecom infrastructure, storage, and networking markets until its acquisition by Microsemi in 2016.
The PM5384-NGI belongs to the SATURN® family of telecom-standard ASSPs, engineered specifically for OC-3/STM-1 user network interface applications in carrier-class access and metro equipment where SONET/SDH compliance, APS reliability, and dual-mode packet transport are mandatory.
FAQ
What is the primary function of the PM5384-NGI in a telecom system?
The PM5384-NGI serves as a fully integrated SONET/SDH 1x155 Mbps user network interface ASSP. It performs line-rate framing, section/line/path overhead processing, ATM UTOPIA Level 2 and POS-PHY Level 2 packet transport, APS switching, and jitter-tolerant clock recovery - all within a single IC. Its role is to terminate the OC-3/STM-1 optical interface while enabling flexible ATM or IP packet transport to the system's switch fabric. The PM5384-NGI is essential for building compact, standards-compliant telecom line cards.
Does the PM5384-NGI support both SONET and SDH modes?
Yes, the PM5384-NGI supports both SONET and SDH framing modes through register configuration. It automatically detects incoming frame structure and adapts overhead byte usage accordingly - for example, interpreting J0 as section trace in SONET or Z0 in SDH. Mode selection is software-controlled via the Master Configuration register (0x001), and the device maintains full compliance with GR-253-CORE (SONET) and ETSI ETS 300 399 (SDH) in either mode. This dual-mode capability is built into the PM5384-NGI silicon.
What system interfaces does the PM5384-NGI provide for connecting to host processors or packet engines?
The PM5384-NGI provides three key system interfaces: an 8/16-bit multiplexed microprocessor interface (up to 33 MHz) for register configuration and status monitoring; a 16-bit UTOPIA Level 2 interface (50 MHz) for ATM cell transport; and a 16-bit POS-PHY Level 2 interface (50 MHz) for IP packet transport. These interfaces operate concurrently and are independently clocked. The PM5384-NGI does not require external glue logic to connect to standard ATM or POS packet engines, simplifying system integration.
How does the PM5384-NGI handle Automatic Protection Switching (APS)?
The PM5384-NGI integrates a hardware APS engine that parses K1/K2 bytes in real time, maintains APS state machines per ITU-T G.841, and triggers protection switching autonomously - typically within 50 ms - without host CPU involvement. It supports both 1+1 and 1:1 configurations and handles bidirectional switching coordination. The PM5384-NGI also includes dedicated RASE (Receive APS, Synchronization Extractor, and Bit Error Monitor) and TASE (Transmit APS) blocks, ensuring deterministic behavior critical for carrier-grade reliability.
Is the PM5384-NGI still in production and supported for new designs?
The PM5384-NGI was discontinued by PMC-Sierra (later Microsemi, now Microchip) following product portfolio rationalization after the 2016 acquisition. However, Aetrix Electronics maintains active inventory and extended lifecycle support for legacy telecom programs. We provide full traceability, obsolescence forecasting, and second-source engineering guidance for customers continuing to manufacture OC-3-based equipment. The PM5384-NGI remains available for repair, replacement, and sustainment builds under controlled allocation.
PM5384-NGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 196-LBGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Telecom Circuit
- Interface:
- PHY, Serial, UTOPIA
- Number of Circuits:
- 1
- Voltage - Supply:
- 2.37V ~ 2.63V, 3.04V ~ 3.47V, 3.14V ~ 3.56V
- Current - Supply:
- 119mA
- Power (Watts):
- 670 mW
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 196-stPBGA (15x15)
PM5384-NGI FAQ
1.How can I place an order for PM5384-NGI through Aetrix?
Please submit a Request for Quotation (RFQ) for PM5384-NGI 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 PM5384-NGI reliable?
The price and inventory of PM5384-NGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM5384-NGI is usually 5 days.
3.What payment methods are accepted for PM5384-NGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM5384-NGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM5384-NGI?
PM5384-NGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM5384-NGI 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 PM5384-NGI?
For technical support, including PM5384-NGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM5384-NGI requirements.
6.How does Aetrix verify that PM5384-NGI is sourced from the original manufacturer or authorized distributors?
All PM5384-NGI 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 PM5384-NGI meets industry standards.
7.What is the process for return or replacement of PM5384-NGI?
All PM5384-NGI units undergo pre-shipment inspection (PSI). If there is an issue with PM5384-NGI, 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 PM5384-NGI part is unused and in its original packaging.
Return procedure for PM5384-NGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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