78Q2120, 78Q2120-64, 78Q2120-64CGT Selling Leads, Datasheet
MFG:IC Package Cooled:TDK D/C:06+
78Q2120, 78Q2120-64, 78Q2120-64CGT Datasheet download
Part Number: 78Q2120
MFG: IC
Package Cooled: TDK
D/C: 06+
78Q2120, 78Q2120-64, 78Q2120-64CGT
- Table of contents:
Info of 78Q2120
Info of 78Q2120-64
Info of 78Q2120-64CGT
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About 78Q2120
PDF/DataSheet Download
Datasheet: 78Q2120
File Size: 205800 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About 78Q2120-64
PDF/DataSheet Download
Datasheet: 78Q2120-64
File Size: 205800 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About 78Q2120-64CGT
PDF/DataSheet Download
Datasheet: 78Q2120-64CGT
File Size: 205800 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
78Q2120 General Description
The 78Q2120 is a 10BASE-T/100BASE-TX Fast Ethernet transceiver. It includes integrated MII,ENDECs, scrambler/descrambler, dual-speed clock recovery, and full-featured auto-negotiation functions. The transmitter includes an on-chip pulse-shaper and a low-power line driver. The receiver has an adaptive equalizer and a baseline restoration circuit required for accurate clock and data recovery. The transceiver interfaces to Cate gory-5 unshielded twisted pair (Cat-5 UTP) cabling, and is connected to the line media via 1:1 isolation transformers. No external filter is required. Interface to the MAC is accomplished through an IEEE
-802.3 compliant media independent interface (MII). The product is fabricated in a BiCMOS process for high performance and low power operation, and can operate from a single 3.3 V or 5 V supply.
-802.3 compliant media independent interface (MII). The product is fabricated in a BiCMOS process for high performance and low power operation, and can operate from a single 3.3 V or 5 V supply.
78Q2120 Maximum Ratings
| PARAMETER | RATING |
| DC Supply Voltage | 7 VDC |
| Storage Temperature | -65 to 150 °C |
| Pin Voltage | -0.3 to (Vcc+0.3) VDC |
| Pin Current | ± 100 mA |
78Q2120 Features
10BASE-T/100BASE-TX IEEE-802.3 compliant TX and RX functions requiring a dual 1:1 isolation transformer interface to the line
Integrated MII, 10BASE-T/100BASE-TX ENDEC, 100BASE-TX scrambler/descrambler, and full-featured auto-negotiation function
Full duplex operation capable
PCS Bypass supports 5-bit symbol interface
Dual speed clock recovery
Automatic polarity correction during auto-negotiation and 10BASE-T signal reception
Power-saving and power-down modes including transmitter disable
BiCMOS technology, operates with a single 3.3V or 5V supply
LED indicators: LINK,TX,RX,COL,100,10,FDX
User programmable Interrupt pin
General Purpose I/O Interface (80-pin package only)
64 and 80-Lead TQFP (JEDEC LQFP),64-Pin QFP packages
Integrated MII, 10BASE-T/100BASE-TX ENDEC, 100BASE-TX scrambler/descrambler, and full-featured auto-negotiation function
Full duplex operation capable
PCS Bypass supports 5-bit symbol interface
Dual speed clock recovery
Automatic polarity correction during auto-negotiation and 10BASE-T signal reception
Power-saving and power-down modes including transmitter disable
BiCMOS technology, operates with a single 3.3V or 5V supply
LED indicators: LINK,TX,RX,COL,100,10,FDX
User programmable Interrupt pin
General Purpose I/O Interface (80-pin package only)
64 and 80-Lead TQFP (JEDEC LQFP),64-Pin QFP packages
78Q2120 Connection Diagram
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