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KSZ8842-MQL Datasheet, PDF (26/141 Pages) Micrel Semiconductor – 2-Port Ethernet Switch with Non-PCI Interface
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Micrel, Inc.
Pin Number
54
55
56
57
Pin Name
AGND
TXM2
TXP2
VDDA
58
AGND
59
NC
60
NC
61
ISET
62
AGND
63
VDDAP
64
AGND
65
X1
66
X2
67
RSTN
68
A15
69
A14
70
A13
71
A12
72
A11
73
A10
74
A9
75
A8
76
A7
77
A6
78
DGND
79
VDDIO
80
A5
81
A4
82
A3
83
A2
84
A1
85
BE3N
86
BE2N
87
BE1N
88
BE0N
89
D31
90
DGND
91
VDDC
October 2007
KSZ8842-16/32 MQL/MVL/MVLI/MBL
Type
Gnd
I/O
I/O
P
Gnd
Ipu
Ipu
O
Gnd
P
Gnd
I
O
Ipu
I
I
I
I
I
I
I
I
I
I
Gnd
P
I
I
I
I
I
I
I
I
I
I/O
Gnd
P
Pin Function
Analog ground
Port 2 physical transmit (MDI) or receive (MDIX) signal (- differential)
Port 2 physical transmit (MDI) or receive (MDIX) signal (+ differential)
1.2 analog VDD input power supply from VDDCO (pin24) through external Ferrite
bead and capacitor.
Analog ground
No connect
No connect
Set physical transmits output current.
Pull-down this pin with a 3.01K 1% resistor to ground.
Analog ground
1.2V analog VDD for PLL input power supply from VDDCO (pin24) through
external Ferrite bead and capacitor.
Analog ground
25MHz crystal or oscillator clock connection.
Pins (X1, X2) connect to a crystal. If an oscillator is used, X1 connects to a 3.3V
tolerant oscillator and X2 is a no connect.
Note: Clock is ± 50ppm for either crystal or oscillator.
Hardware reset pin (active Low). This reset input is required minimum of 10ms
low after stable supply voltage 3.3V.
Address 15
Address 14
Address 13
Address 12
Address 11
Address 10
Address 9
Address 8
Address 7
Address 6
Digital IO ground
3.3V digital VDDIO input power supply for IO with well decoupling capacitors.
Address 5
Address 4
Address 3
Address 2
Address 1
Byte Enable 3 Not, Active low for Data byte 3 enable.
Byte Enable 2 Not, Active low for Data byte 2 enable.
Byte Enable 1 Not, Active low for Data byte 1 enable.
Byte Enable 0 Not, Active low for Data byte 0 enable.
Data 31
Digital core ground
1.2V digital core VDD input power supply from VDDCO (pin24) through external
Ferrite bead and capacitor.
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M9999-102207-1.9
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