ENC424J600T-I/PT - 10/100 Ethernet Controller | Microchip
MPN: ENC424J600T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ENC424J600T-I/PT Overview
An Ethernet controller is a network interface semiconductor that manages frame transmission, reception, packet filtering, and the physical-layer electrical connection to 10/100 Base-T Ethernet. The ENC424J600 combines the MAC and PHY in one device, reducing external interface circuitry and allowing an embedded processor to connect through SPI or a parallel host interface.
According to the Microchip ENC424J600/624J600 datasheet, the device meets applicable IEEE 802.3 requirements for 10Base-T and 100Base-TX Ethernet, including optional auto-negotiation functionality. The manufacturer description also identifies hardware cryptographic security engines, while the verified distributor listing identifies the target as a 10/100 Base-T controller with SPI and parallel interfaces.
The part is supplied from a 3 V to 3.6 V operating range, with a distributor specification listing 96 mA supply current. Its 44-TQFP exposed-pad package is intended for surface-mount PCB assembly and provides a defined thermal and electrical land pattern for Ethernet interface designs.
Typical application domains include embedded industrial controllers, networked instrumentation, data-acquisition equipment, access-control systems, and compact control platforms that require wired Ethernet without an external Ethernet PHY. The integrated MAC/PHY arrangement is useful where board space and interface simplicity matter, while the SPI option can reduce host pin requirements compared with a parallel bus.
Designers should verify the exact pinout, exposed-pad connection, clock requirements, transceiver magnetics, RJ-45 integration, and decoupling requirements against the current Microchip datasheet before layout release. The verified data does not provide pricing, detailed timing values, temperature limits, or a complete pin map, so those items should not be inferred from generic Ethernet-controller specifications.
Drop-in alternatives for ENC424J600T-I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ENC424J600T-I/PT (same form factor and footprint) — differing in Package, Auto-Negotiation, Packet Filtering, Pin Count, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ENC424J600-I/PT
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →ENC424J600T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
ENC424J600
✅ Drop-In📋 Reference alternative (not in catalog)
ENC624J600
✅ Drop-In📋 Reference alternative (not in catalog)
LAN9252I/PT
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →ENC424J600T-I/PT Specifications
| Product Type | Stand-alone 10/100 Base-T Ethernet controller |
| Ethernet Standard | 10Base-T and 100Base-TX |
| Controller Architecture | Integrated MAC and PHY |
| Host Interfaces | SPI and parallel interface |
| Supply Voltage Range | 3 V to 3.6 V |
| Supply Current | 96 mA |
| Package | 44-TQFP, 10 mm x 10 mm |
| Package Type | TQFP with exposed pad |
| Ethernet Data Rate | 10 Mbps and 100 Mbps |
| IEEE Compliance | IEEE 802.3 applicable to 10Base-T and 100Base-TX Ethernet |
| Auto-Negotiation | Supported, according to the manufacturer datasheet description |
| Packet Filtering | Incoming packet filtering schemes supported |
| Cryptographic Hardware | Hardware cryptographic security engines |
| Mounting Type | Surface mount |
| Datasheet Document | DS39935C |
ENC424J600T-I/PT tqfp with exposed pad Pin Configuration Guide
Pin configuration for ENC424J600T-I/PT (tqfp with exposed pad package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ENC424J600T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
ENC424J600T-I/PT is suitable for 6 applications: Embedded Industrial Control, Industrial Data Acquisition, Networked Security and Access Systems, Networking Equipment, Test and Measurement Instruments, Compact Automation Hubs.
Embedded Industrial Control
The ENC424J600T-I/PT fits embedded industrial-control equipment that needs 10/100 Base-T Ethernet without a separate MAC and PHY. Its integrated controller reduces the number of network-interface ICs, while SPI can simplify connection to a microcontroller or application processor. The verified 3 V to 3.6 V supply range and 96 mA listed supply current provide useful design constraints, although magnetics, RJ-45 integration, grounding, and industrial EMC requirements must be handled separately. Firmware should validate auto-negotiation and packet-filtering behavior against the manufacturer datasheet.
Recommended
Industrial Data Acquisition
For instrumentation and data-acquisition systems, the ENC424J600T-I/PT can provide a wired 10/100 Ethernet path while the host processor handles measurements and local storage. The integrated MAC/PHY and packet-filtering support can reduce the controller burden on the host and limit unwanted incoming traffic. SPI is useful when the host has limited parallel I/O capacity, but the designer must verify timing, interrupt, buffer, and interface details in DS39935C. Ethernet isolation and surge protection should be selected according to the installation environment.
Recommended
Networked Security and Access Systems
The ENC424J600T-I/PT is suitable for access-control, security, and building-automation nodes that need compact wired networking. Its 10/100 Base-T capability and integrated MAC/PHY can support status reporting, configuration, and remote diagnostics, while the manufacturer description identifies hardware cryptographic security engines. Security capability still requires exact algorithm and key-management review from the datasheet. Board-level Ethernet isolation, surge protection, grounding, and enclosure installation remain important for reliable field operation.
Recommended
Networking Equipment
The ENC424J600T-I/PT can be integrated into compact networking equipment that requires a 10/100 Ethernet management or control port. Its integrated controller architecture can simplify the interface between an embedded processor and copper Ethernet, while SPI offers a compact host connection for devices with constrained pin counts. In production designs, validate throughput, frame buffering, packet filtering, auto-negotiation, and recovery behavior against the actual host workload. The available verified data does not state sustained throughput, latency, or temperature limits.
Recommended
Test and Measurement Instruments
The ENC424J600T-I/PT is applicable to test and measurement instruments that need a network interface for remote control, data export, or service access. A 10/100 Ethernet link is appropriate for many instrument-control networks, and the integrated MAC/PHY can reduce the number of components around the host processor. Signal-chain and power-supply design must remain separate from the digital interface, with careful isolation and grounding to prevent measurement noise from coupling into the Ethernet section. Firmware should include link monitoring, recovery, and secure configuration practices.
Recommended
Compact Automation Hubs
The ENC424J600T-I/PT can support compact automation hubs that aggregate status and commands over Ethernet while retaining a small host interface. The 44-TQFP package and 3 V to 3.6 V supply range support integration into embedded electronics, while SPI can reduce host pin count compared with a parallel data bus. A production design should verify the controller's packet-filtering, auto-negotiation, and hardware-security features, and should include Ethernet magnetics and appropriate transient protection. The verified data does not provide temperature or long-term availability specifications.
Recommended
Recommended Products Summary
Engineering reference data for ENC424J600T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ENC424J600-I/PT | ENC424J600T-I/ML | ENC424J600 | ENC624J600 | LAN9252I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Key Differentiators
- Integrated MAC and PHY in one controller (vs W5100)
- SPI and parallel host-interface options (vs ENC624J600)
- Ethernet packet filtering (vs ENC424J600-I/PT)
- Manufacturer security capability (vs LAN9252I/PT)
Design Notes
Start the layout from the exact Microchip DS39935C package drawing rather than inferring a generic 44-TQFP land pattern. Confirm whether the exposed pad is electrically connected, required for thermal performance, or both. Keep the Ethernet differential pairs short, impedance-controlled, and referenced to a continuous ground plane, while separating the Ethernet section from switching supplies and high-current return paths. Validate the magnetics and RJ-45 placement against the selected Ethernet physical-layer implementation.
The verified operating range is 3 V to 3.6 V and the listed supply current is 96 mA. Provide local decoupling at the controller supply pins with placement guided by the manufacturer datasheet and the actual host-interface activity. Do not assume the 96 mA value is the maximum current for every operating condition; measure startup, idle, transmit, and receive states in the final design and size the supply with appropriate margin.
Treat the 10/100 Ethernet differential signals as a controlled-impedance PCB interface. Match trace geometry to the selected magnetics and connector, minimize stubs, provide a continuous return path, and observe the manufacturer's recommended clearances. SPI timing, clock routing, interrupt traces, and parallel-interface timing also require verification against DS39935C; the verified web data does not provide rise-time, timing, or impedance values.
Do not substitute a same-family Ethernet IC solely because the package name appears similar. Compare the complete numbered pinout, exposed-pad treatment, host interface, supply limits, clock requirements, interrupt behavior, security features, and ordering/lifecycle information. The verified alternatives results identify related variants but do not prove exact drop-in equivalence. For production use, obtain the current manufacturer datasheet and validate the candidate on hardware.
Compliance Information
The verified web data does not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. IEEE 802.3 applicability is stated by the manufacturer datasheet description, but that is a technical compliance statement rather than an environmental certification.
