KSZ9477STXI-TR

KSZ9477STXI-TR is Microchip’s KSZ9477 family 7-port Gigabit Ethernet switch IC (in Tape & Reel packaging). It combines seven 10/100/1000BASE‑T Ethernet PHYs with an internal nonblocking switch fabric, enabling a compact, single‑chip switching solution for embedded networks.
Key features (typical):
- 7 Ethernet ports with full switching capability
- VLAN, QoS (802.1p), IGMP snooping, and basic L2 management
- MAC address table, port isolation, and traffic control
- Management via standard interfaces (MDIO) for configuration and status
Common applications:
- Embedded network switches and gateways
- IP cameras, industrial controllers, and small form‑factor networking devices
Notes:
- STXI-TR denotes a specific product variant and Tape & Reel packaging; refer to the datasheet for exact electrical specs, pinout, and supported features.
- For detailed feature sets, timing, electrical characteristics, and recommended usage, consult the KSZ9477 datasheet and application notes.

There aren’t publicly published exact equivalents for KSZ9477STXI-TR. It’s Microchip’s 7-port Gigabit Ethernet switch. Closest drop-in or similar-function parts are other Microchip KSZ-series 7-port switches (e.g., KSZ9477 in different packaging) and KSZ9897. For an exact cross-reference, contact Microchip or authorized distributors with your package and temp specs.

Here are the key features of KSZ9477STXI-TR (concise):
- 7-port Gigabit Ethernet switch: 7× 10/100/1000BASE-T ports with full line-rate, non-blocking switching.
- VLAN support: 802.1Q (port-based and tagged VLANs).
- Quality of Service: 802.1p/DSCP-based QoS with multiple queues and shaping/policing.
- Multicast handling: IGMP/MLD Snooping for efficient multicast forwarding.
- Spanning Tree Protocol: supports RSTP/MSTP for loop protection.
- Frame size: Jumbo frames up to 9 KB.
- MAC table: large address table with aging and per-port learning.
- Management interfaces: MDIO/MII for register/PHY management; optional I2C-like host control interface.
- Packaging: STXI-TR (Tape & Reel) format.

- Pin count: 196 pins (STXI package, BGA). The “TR” denotes Tape & Reel packaging.
- Function: 7‑port managed Gigabit Ethernet switch with seven integrated 10/100/1000 PHYs, switch fabric, and management interfaces (e.g., MDIO/MDC).

- Manufacturer: Microchip Technology Inc.
- What kind of company: A US‑based semiconductor company that designs and manufactures microcontrollers, analog/mixed-signal ICs, memory, and other integrated circuits.

KSZ9477STXI-TR is a 7-port Gigabit Ethernet switch IC for embedded networking. Common applications include:
- Home/small business routers, gateways, and managed/unmanaged switches
- Industrial automation and edge networking equipment
- IP surveillance systems (NVRs and cameras)
- Networked consumer electronics (set-top boxes, media players, smart TVs)
- Digital signage, kiosks, and networked POS terminals
- Other multi-port Ethernet networking appliances requiring a compact switch solution

Package type: STXI (QFN-style) package; Tape & Reel version (-TR).