KS8993F Micrel Inc, KS8993F Datasheet - Page 13

• Manufacturer Part Number: KS8993F
• Description: IC CONV MED 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993F

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: KS8993F-EVAL - EVAL KIT EXPERIMENTAL KS8993F
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

Micrel, Inc.
Pin #
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
June 2009
Pin Name
DIAGF
PWRDN
AGND
VDDA
AGND
MUX1
MUX2
AGND
VDDA
FXSD1
RXP1
RXM1
AGND
TXP1
TXM1
VDDATX
VDDARX
RXM2
RXP2
AGND
TXM2
TXP2
VDDA
AGND
TEST1
TEST2
ISET
AGND
VDDAP
AGND
X1
X2
RST_N
BPEN
SMAC
LEDSEL0
SMTXEN
SMTXD3
Type
Ipd
I
Gnd
Pwr
Gnd
I
I
Gnd
Pwr
I
I/O
I/O
Gnd
I/O
I/O
Pwr
Pwr
I/O
I/O
Gnd
I/O
I/O
Pwr
Gnd
I
I
O
Gnd
Pwr
Gnd
I
O
Ipu
Ipd
Ipd
Ipd
Ipd
Ipd
Description
0 = disable missing link
1 = diagnostic fail
0 = diagnostic normal
Chip power down input (active low)
Analog ground
1.8V analog VDD
Analog ground
Factory test pin – float for normal operation
Factory test pin – float for normal operation
Analog ground
1.8V analog VDD
Fiber signal detect / factory test pin
Physical receive or transmit signal (+ differential)
Physical receive or transmit signal (- differential)
Analog ground
Physical transmit or receive signal (+ differential)
Physical transmit or receive signal (- differential)
3.3V analog VDD
3.3V analog VDD
Physical receive or transmit signal (– differential)
Physical receive or transmit signal (+ differential)
Analog ground
Physical transmit or receive signal (– differential)
Physical transmit or receive signal (+ differential)
1.8V analog VDD
Analog ground
Factory test pin – float for normal operation
Factory test pin – float for normal operation
Set physical transmit output current.
Pull down this pin with a 3.01K 1% resistor to ground.
Analog ground
1.8V analog VDD for PLL
Analog ground
25 MHz crystal/oscillator clock connections
Note: Clock is +/- 50ppm for both crystal and oscillator.
Hardware reset pin (active low)
Half Duplex Backpressure
Special Mac Mode
LED display mode select
See description in pin# (1,4).
Switch MII transmit enable
Switch MII transmit data bit 3
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.
1 = enable
0 = disable
1 = enable
0 = disable
In this mode, the switch will do faster backoffs than normal.
13
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KS8993F/FL