KSZ8721BLI-TR vs KSZ8721BL Comparison

Detailed side-by-side comparison of KSZ8721BLI-TR by Microchip Technology and KSZ8721BL by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Microchip Technology
KSZ8721BLI-TR KSZ8721BLI-TR - 3.3V 10/100 Ethernet PHY | Microchip (Tape & Reel)

KSZ8721BLI-TR - 3.3V 10/100 Ethernet PHY | Microchip (Tape & Reel)

KSZ8721BLI-TR ✓ Active
Microchip Technology
KSZ8721BL KSZ8721BL - 100Mbps Ethernet PHY | Microchip | LQFP-48

KSZ8721BL - 100Mbps Ethernet PHY | Microchip | LQFP-48

KSZ8721BL ✓ Active

Specification Comparison

Parameter KSZ8721BLI-TR KSZ8721BL
Brand Microchip Technology Microchip Technology
Category Interface ICs Interface ICs
Lifecycle Status Active Active
Product Type 10/100BASE-TX/FX Ethernet physical-layer transceiver 10/100BASE-TX/FX MII physical-layer transceiver
Supply Voltage 3.3 V 3.3 V
Operating Voltage Range 2.5 V to 3.3 V —
Data Rate 10 Mbps and 100 Mbps 100 Mbps
Copper Media Support 10BASE-T and 100BASE-TX —
Fiber Media Support 100BASE-FX —
Host Interface MII and RMII MII and RMII
Number of Transceivers 1 —
Ethernet Standards IEEE 802.3 and IEEE 802.3u —
Auto Crossover MDI/MDI-X auto-crossover —
Package 48-LQFP, 7 x 7 mm 48-pin LQFP
Pin Count 48 pins —
Mounting Type Surface mount Surface mount
Industrial Temperature Range -40°C to +85°C —
RoHS Status Compliant [DATA_NEEDED: RoHS status]
REACH Status [DATA_NEEDED: REACH status] [DATA_NEEDED: REACH status]
AEC-Q100 Qualification [DATA_NEEDED: AEC-Q100 qualification status] [DATA_NEEDED: AEC-Q100 qualification]
Lead-Free Status [DATA_NEEDED: lead-free status] —
Halogen-Free Status [DATA_NEEDED: halogen-free status] —
Conflict Minerals Status [DATA_NEEDED: conflict-minerals status] —
Observed Unit Price $2.5389 as of 2026-10-30 —
Distributor Availability In stock at LCSC as of 2026-10-30 —
Core Voltage — 2.5 V
Ethernet Type — 10/100BASE-TX/FX
Operating Temperature Range — 0°C to +70°C
Supply Current — 151 mA
Number of Pins — 48
MDI/MDI-X — Automatic crossover supported
Power-Supply Architecture — 3.3 V single power supply with 2.5 V core
Media Support — 10BASE-T/100BASE-TX/100BASE-FX
Temperature Grade — Commercial
Interface Type — MII/RMII Ethernet interface

Datasheets & Resources

Browse All Products Create BOM Request Quote