LAN91C96I-MS - 10Mbps Full-Duplex Ethernet Controller | Microchip
MPN： LAN91C96I-MS ✓ 啟用中LAN91C96I-MS 概覽
An Ethernet controller is a network interface semiconductor that connects an embedded host bus to physical-layer hardware. This device integrates MAC functions, the 10BASE-T physical layer, and packet RAM on one VLSI chip. It combines Local Bus, PCMCIA, and Motorola 68000 bus interfaces, allowing it to serve legacy embedded systems, embedded controllers, industrial equipment, and network-interface subsystems without requiring a separate Ethernet PHY.
The LAN91C96I-MS supports full-duplex switched Ethernet at 10 Mbps and provides independent transmit and receive operations. Its enhanced transmit queue helps the host organize frames for serial transmission, while packet RAM reduces the amount of external buffering required. Additional network functions include Magic Packet, programmable LED indication, support for optical-fiber links, and a low-power operating mode for power-sensitive embedded designs.
The parallel interface connects the controller to a host processor through a structured register and buffer architecture. Local Bus compatibility is important because the Microchip LAN91C96i family is designed to be 100% pin and software compatible with the LAN91C92 and LAN91C94 when operating in Local Bus mode. This compatibility can simplify firmware maintenance when moving between qualified LAN91C-family controller designs without changing the established host-side software model.
Typical uses include embedded data acquisition, legacy industrial controllers, print systems, point-of-sale terminals, embedded gateways, and equipment requiring a 10BASE-T network node. The integrated PHY simplifies the board-level network section, while the parallel host interface suits processors that do not include a dedicated Ethernet media-access controller. The 100-pin QFP package also provides ample signal access for host-bus, memory, clock, interrupt, and network connectivity.
Designers should account for all power, ground, clock, reset, interrupt, transmit, and receive connections in the manufacturer pin-description table. PCB placement should keep the 10BASE-T network section away from high-speed or high-current switching circuitry, while providing a low-impedance return path for the interface and supply pins. Software configuration should use the documented register definitions and account for the controller's independent transmit and receive operation.
This product page combines the manufacturer architecture description, distributor package information, compatibility information, and practical selection guidance. It also identifies same-package family alternatives and explains where package, temperature, or ordering-option differences require engineering review before a replacement is approved.
直接替換替代品，適用於 LAN91C96I-MS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LAN91C96I-MS （相同外形與佔位） — 差異在於 Device Type, Ethernet Speed, Host Interface, Operating Temperature.
LAN91C96I-MU
✅ 直接替換聯絡詢價
查看資料表 →LAN91C96-MS
✅ 直接替換聯絡詢價
查看資料表 →LAN91C92
✅ 直接替換📋 參考替代品（不在目錄中）
LAN91C94
✅ 直接替換📋 參考替代品（不在目錄中）
SMC91C100
✅ 直接替換📋 參考替代品（不在目錄中）
LAN91C96I-MS 規格
| Device Type | Non-PCI single-chip full-duplex Ethernet controller |
| Ethernet Speed | 10 Mbps |
| Physical Layer | 10BASE-T PHY |
| Host Interface | Parallel interface |
| 供應電壓 | 3.3 V |
| Technology | CMOS |
| 工作溫度 | -40°C to +85°C |
| 封裝 | 100-pin QFP, 14 mm x 20 mm |
| 腳位數 | 100 pins |
| 安裝類型 | Surface mount |
| Duplex Support | Full duplex |
| Bus Interfaces | Local Bus, PCMCIA, and Motorola 68000 |
| Integrated Memory | Packet RAM |
| Wake-Up Feature | Magic Packet |
| LED Control | Programmable LED indication |
| Power Management | Low-power mode |
| Fiber Support | Optical-fiber support |
LAN91C96I-MS 100-pin qfp, 14 mm x 20 mm 腳位配置指南
LAN91C96I-MS（100-pin qfp, 14 mm x 20 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： LAN91C96I-MS.
請參閱 資料表 以查看完整腳位配置。
典型應用
LAN91C96I-MS 適用於 6 應用s: Legacy Industrial Ethernet Node, Embedded Data Acquisition Controller, Point-of-Sale and Terminal Equipment, Embedded Gateway and Protocol Bridge, Print System and Office Equipment, Low-Power Embedded Network Appliance.
Legacy Industrial Ethernet Node
The LAN91C96I-MS fits legacy industrial controllers that require a 10 Mbps network node and a parallel host interface rather than a modern serial Ethernet MAC. Its integrated 10BASE-T PHY and packet RAM reduce the number of external network components, while the -40°C to +85°C rating supports industrial equipment. Use the documented Local Bus interface and independent transmit and receive functions to connect the controller to a processor, then isolate the network magnetics and connector from high-energy switching circuitry.
推薦
Embedded Data Acquisition Controller
The LAN91C96I-MS is suitable for measurement and data-acquisition equipment that must transfer records over 10BASE-T while retaining a processor-centric parallel bus. Packet RAM provides buffering inside the controller, and the enhanced transmit queue helps organize outbound frames. The 10 Mbps rate is adequate for supervisory data, configuration transfer, and periodic status exchange rather than continuous high-bandwidth payload streaming. System designers should size the network path and host DMA behavior around the controller's documented throughput and buffering architecture.
推薦
Point-of-Sale and Terminal Equipment
The LAN91C96I-MS can support legacy point-of-sale terminals, transaction equipment, and service computers that need a simple 10 Mbps Ethernet path. Its integrated MAC, PHY, and packet memory allow a host processor to communicate through a parallel bus without a separate network controller. Magic Packet provides a network wake-up mechanism, while programmable LED indication can report link or activity conditions. The 100-pin QFP footprint requires more PCB area than compact contemporary controllers but fits established motherboard designs with adequate routing resources.
推薦
Embedded Gateway and Protocol Bridge
The LAN91C96I-MS can serve as the Ethernet side of an embedded protocol bridge when the gateway must preserve an established parallel-bus architecture. The controller's Local Bus compatibility and integrated packet RAM allow the host processor to manage protocol translation without adding a separate 10BASE-T PHY. Full-duplex switched Ethernet and independent transmit and receive operations improve responsiveness for bidirectional traffic. Firmware validation should confirm address mapping, interrupt latency, and buffer-management behavior before deployment.
推薦
Print System and Office Equipment
The LAN91C96I-MS is applicable to legacy print systems and office peripherals that use an embedded processor and require 10BASE-T connectivity. The parallel host interface supports a direct processor-oriented architecture, while the integrated PHY reduces external circuitry around the network path. A 10 Mbps link is generally adequate for job submission, status reporting, and configuration traffic rather than large file transfers. The design should provide the required clocks, resets, interrupts, and magnetics interface exactly as specified in the manufacturer documentation.
推薦
Low-Power Embedded Network Appliance
The LAN91C96I-MS fits established embedded appliances that need a wired 10 Mbps interface and a low-power operating state. Its low-power mode can reduce activity when the application does not require continuous network processing, while Magic Packet supports remote activation over Ethernet. The integrated PHY and packet RAM also reduce external component count. Designers should validate wake-up behavior, regulator headroom, and cable-link performance in the final enclosure, since low-power transitions and connector isolation can affect real-world availability.
推薦
推薦產品摘要
工程參考資料，適用於 LAN91C96I-MS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LAN91C96I-MU | LAN91C96 | LAN91C92 | LAN91C94 | SMC91C100 |
|---|---|---|---|---|---|---|
| Package | 100-pin QFP, 14 mm x 20 mm | 100-pin QFP, 14 mm x 20 mm | 100-pin QFP, 14 mm x 20 mm | 100-pin QFP, 14 mm x 20 mm | 100-pin QFP, 14 mm x 20 mm | 100-pin QFP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Type | Non-PCI single-chip full-duplex Ethernet controller | Non-PCI 10 Mbps Ethernet MAC | VLSI Ethernet controller | LAN91C-family Ethernet controller | LAN91C-family Ethernet controller | Fast Ethernet controller |
| Ethernet Speed | 10 Mbps | 10 Mbps | 10 Mbps | 10 Mbps | 10 Mbps | 10 Mbps and 100 Mbps |
| Physical Layer | 10BASE-T PHY | 10BASE-T | 10BASE-T | 10BASE-T | 10BASE-T | 10BASE-T and 100BASE-TX |
| Host Interface | Parallel Local Bus, PCMCIA, and Motorola 68000 interfaces | Parallel interface | Local Bus, PCMCIA, and Motorola 68000 | Local Bus mode compatible | Local Bus mode compatible | Parallel interface |
主要差異化特點
- Single-chip integration (對比SMC91C100)
- Documented Local Bus migration path (對比LAN91C92)
- Full-duplex switched operation (對比LAN91C94)
- Integrated management features (對比LAN91C96)
設計說明
Use the manufacturer pin-description table and layout guidance as the controlling PCB references. Place the 10BASE-T network section away from switching regulators, relays, and high-speed digital return currents. Provide a continuous ground reference beneath the parallel host-bus area and route clock and reset signals away from magnetics-related switching nodes. The 14 mm by 20 mm, 100-pin footprint requires careful escape routing from the fine-pitch perimeter.
Review the datasheet requirements for clock source, reset timing, interrupt timing, and host-bus signals before fixing the system timing budget. LAN91C96i-family compatibility is specifically documented for Local Bus mode, so any use of PCMCIA or Motorola 68000 operation must follow the corresponding interface chapter. Validate read, write, arbitration, and interrupt behavior at the intended host clock rather than assuming identical timing across every family member.
Plan the 3.3 V supply around the controller's digital and analog requirements, including local decoupling at the associated power pins. Keep the Ethernet physical-layer supply and network magnetics on a clean return path, and provide isolation consistent with the installation environment. Low-power mode can reduce current during idle periods, but wake-up behavior should be tested under realistic cable, connector, and temperature conditions.
Do not substitute the controller solely because another LAN91C part has a similar 100-pin package. The manufacturer documents 100% pin and software compatibility with LAN91C92 and LAN91C94 specifically in Local Bus mode. Confirm the ordering suffix, temperature grade, clock arrangement, Magic Packet behavior, LED functions, and optical-fiber feature set. This check also prevents an SMC91C100 migration from unintentionally changing the supported network speed and firmware model.
合規資訊
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for the exact ordering code. Confirm compliance with the manufacturer product page before using the component in a regulated application.
