78Q2123R/F1 Maxim Integrated, 78Q2123R/F1 Datasheet - Page 3

• Manufacturer Part Number: 78Q2123R/F1
• Description: Ethernet ICs
• Manufacturer: Maxim Integrated

Specifications of 78Q2123R/F1

• Rohs: yes

DS_21x3_001
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Revision History .................................................................................................................................. 38
Rev. 1.6
Electrical Specifications .............................................................................................................. 23
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
Package Pin Designations .......................................................................................................... 35
32-Pin QFN Mechanical Specifications ....................................................................................... 36
6.1
Ordering Information ................................................................................................................... 37
Absolute Maximum Ratings ................................................................................................... 23
Recommended Operating Conditions .................................................................................... 23
DC Characteristics ................................................................................................................ 23
Digital I/O Characteristics ...................................................................................................... 24
Digital Timing Characteristics ................................................................................................ 25
MDIO Interface Input Timing ................................................................................................. 26
Analog Electrical Characteristics ........................................................................................... 30
Isolation Transformers........................................................................................................... 33
Reference Crystal ................................................................................................................. 33
Recommended Pcb Land Pattern Dimensions ....................................................................... 37
4.5.1 RST Characteristics................................................................................................... 25
4.5.2 MII Transmit Interface ................................................................................................ 25
4.5.3 MII Receive Interface ................................................................................................. 26
4.6.1 MDIO Interface Output Timing ................................................................................... 27
4.6.2 MDIO Interface Output Timing ................................................................................... 28
4.6.3 100BASE-TX System Timing ..................................................................................... 29
4.6.4 10BASE-T System Timing ......................................................................................... 29
4.7.1 100BASE-TX Transmitter .......................................................................................... 30
4.7.2 100BASE-TX Transmitter (Informative) ...................................................................... 30
4.7.3 100BASE-TX Receiver .............................................................................................. 30
4.7.4 10BASE-T Transmitter............................................................................................... 31
4.7.5 10BASE-T Transmitter (Informative) .......................................................................... 31
4.7.6 10BASE-T Receiver .................................................................................................. 31
4.9.1 External XTLP Oscillator Characteristics .................................................................... 34
6.1.1 Recommended PCB Land Pattern Dimensions .......................................................... 37
78Q2123/78Q2133 Data Sheet
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