MAX24288 Series

IEEE 1588 Clock and Packet Timestamper and 1Gbps Parallel-to-Serial MII Converter

Catalog

IEEE 1588 Clock and Packet Timestamper and 1Gbps Parallel-to-Serial MII Converter

Part	Package / Case	Applications	Interface	Mounting Type	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]
Microchip Technology MAX24288ETK2T	68-WFQFN Exposed Pad	Switch Interfacing	Ethernet	Surface Mount	68-TQFN-EP (8x8)	1.14 V	3.465 V
Microchip Technology MAX24288ETK2	68-WFQFN Exposed Pad	Switch Interfacing	Ethernet	Surface Mount	68-TQFN-EP (8x8)	1.14 V	3.465 V

Catalog

IEEE 1588 Clock and Packet Timestamper and 1Gbps Parallel-to-Serial MII Converter

Key Features

- Complete Hardware Support for IEEE 1588

- Ordinary, Boundary, and Transparent Clocks

- Flexible Block for Any 1588 Architecture

- 1588 Clock Hardware

- Steerable by Software with 2-8ns Time Resolution and 2-32ns Period Resolution

- 1ns Input Timestamp Accuracy and Output Edge Placement Accuracy

- Three Time/Frequency Controls: Direct Time Write, Time Adjustment, and High-Resolution Frequency Adjustment

- Programmable Clock and Time-Alignment I/O

- Input Event Timestamper Detects Incoming Time Alignment (e.g., 1 PPS) or Clock Edges

- Output Event Generator Provides Output Clock Signal or Time Alignment Signal

- Built-In Support for Telecom Equipment Timing Architecture with Dual Redundant Timing Cards

- 1588 Timestamping Hardware

- 1588 v1 and v2 Packets, Transmit and Receive

- Packet Classifier Supports 1588 Over Ethernet, IPv4/UDP, IPv6/UDP, or MPLS and Is Programmable for More Complex Stacks

- Supports 802.1Q VLAN Tags and MAC-in-MAC

- One-Step Operation: On-the-Fly Timestamp Insertion or Transparent Clock Corrections; No Need for Follow-Up Packets

- Can Insert All Timestamps, Receive and Transmit, Into Packets for Easy Software Access

- Optional Two-Step Operation

- Parallel-to-Serial MII Conversion

- Bidirectional Wire-Speed Interface Conversion

- Serial: 1000BASE-X or SGMII v1.8 (4, 6, or 8 Pin)

- Parallel: GMII, RGMII, or 10/100 MII

- Translates Link Speed and Duplex Mode Negotiation Between MDIO and SGMII PCS

- Full Support for 1588 + Synchronous Ethernet

- MDIO and SPI™ Interfaces

- 1.2V Operation with 3.3V I/O

Description

The MAX24288 is a flexible, low-cost IEEE 1588 clock and timestamper with an SGMII or 1000BASE-X serial interface and a parallel MII interface that can be configured for GMII, RGMII, or 10/100 MII. The device provides all required hardware support for high-accuracy time and frequency synchronization using the IEEE 1588 Precision Time Protocol. In both the transmit and receive directions 1588 packets are identified and timestamped with high precision. System software makes use of these timestamps to determine the time offset between the system and its timing master. Software can then correct any time error by steering the device's 1588 clock subsystem appropriately. The device provides the necessary I/O to time-synchronize with a 1588 master elsewhere in the same system or to be the master to which slave components can synchronize. In addition, the MAX24288 is a full-featured, 10/100/1000 Mbps parallel-to-serial MII converter. It provides full SGMII revision 1.8 compliance and also interfaces directly to 1Gbps 1000BASE-X SFP optical modules. ### Applications/Uses * 1588-Enabled Equipment with 1G Ethernet Ports * Industrial and Factory Automation Equipment * Medical Equipment * Pseudowire Circuit Emulation Equipment * Switches, Routers, DSLAMs, PON Equipment * Test and Measurement Systems * Wireless Base Stations and Controllers