KSZ8841-PMQL
Single-Port Ethernet MAC Controller
with PCI Interface
Features
Additional Features
• Fully Compliant with the IEEE802.3u Standard
• Supports 10/100BASE-T/TX
• Single Chip Ethernet Controller with IEEE 802.3u
Support
• Supports IEEE 802.3x Full-Duplex Flow Control
and Half-Duplex Backpressure Collision Flow
Control
• 32-bit/33 MHz PCI Bus for Different Host Proces-
sor Interfaces
• Dynamic Buffer Memory Scheme
• Supports Burst Data Transfers
- Essential for Applications such as Video over
IP where Image Jitter is Unacceptable
• 8 KB Internal Memory for RX/TX FIFO Buffers
• Microchip LinkMD® Cable Diagnostic Capabilities
to Determine Cable Length, Diagnose Faulty
Cables, and Determine Distance to Fault
• Early TX/RX Functions to Minimize Latency
Through the Device
• Serial EEPROM Configuration
• Single 25 MHz Reference Clock for Both PHY
and MAC
• Wake-on-LAN Functionality
- Incorporates Magic Packet™, Network Link
State, and Wake-Up Frame Technology
Network Features
• HP Auto MDI-X Crossover with Disable/Enable
Option
• Fully Integrated to Comply with IEEE 802.3u
Standards
• Enhanced Power Management Feature with
Power-Down Feature
• 10BASE-T and 100BASE-TX Physical Layer Sup-
port
• Auto-Negotiation: 10/100 Mbps Full- and Half-
Duplex
Applications
• Video Distribution Systems
• High-End Cable, Satellite, and IP Set-Top Boxes
• Video over IP
• Supports IEEE 802.1Q Multiple VLAN Tagging
• On-Chip Wave Shaping: No External Filters
Required
• Voice over IP (VoIP) and Analog Telephone
Adapters (ATA)
• Adaptive Equalizer
• Baseline Wander Correction
Power Modes, Power Supplies, and Packaging
Markets
• Single Power Supply (3.3V) with 5V Tolerant I/O
Buffers
• Fast Ethernet
• Embedded Ethernet
• Industrial Ethernet
• Enhanced Power Management Feature with
Power-Down Feature to Ensure Low Power Dissi-
pation During Device Idle Periods
• Comprehensive LED Indicator Support for Link,
Activity, Full-/Half-Duplex, and 10/100 Speed (4
LEDs)
• Low-Power CMOS Design
• Commercial Temperature Range: 0°C to +70°C
• Industrial Temperature Range: –40°C to +85°C
• Available in 128-Pin PQFP
2019 Microchip Technology Inc.
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