KSZ8995MA B3 Micrel Inc, KSZ8995MA B3 Datasheet - Page 12

• Manufacturer Part Number: KSZ8995MA B3
• Manufacturer: Micrel Inc

Specifications of KSZ8995MA B3

• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• 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 Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Semptember 2008
Notes:
1.
Pin Number
P = Power supply.
I = Input.
O = Output.
I/O = Bidirectional.
Gnd = Ground.
Ipu = Input w/internal pull-up.
Ipd = Input w/internal pull-down.
Ipd/O = Input w/internal pull-down during reset, output pin otherwise.
Ipu/O = Input w/internal pull-up during reset, output pin otherwise.
NC = No connect.
31
32
33
34
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
FXSD5/FXSD3
PWRDN_N
RESERVE
Pin Name
PMTXEN
PMTXER
PMTXD3
PMTXD2
PMTXD1
PMTXD0
PMRXC
VDDAR
VDDAR
VDDAR
PMTXC
VDDAT
FXSD4
VDDIO
GNDA
GNDA
GNDA
GNDA
GNDD
GNDD
RXM5
MUX1
MUX2
VDDC
RXP5
TXM5
TXP5
Type
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
NC
Ipd
Ipd
NC
NC
Ipu
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd
O
O
O
O
P
P
P
P
P
P
I
I
(1)
Port
5/3
5
5
5
5
4
5
5
5
5
5
5
5
5
Pin Function
1.8V analog V
Physical receive signal + (differential).
Physical receive signal – (differential).
Analog ground.
Physical transmit signal + (differential).
Physical transmit signal – (differential).
2.5V or 3.3V analog V
Fiber signal detect pin. FXSD5 is for port 5 of the KS8995MA. FXSD3
is for port 3 of the KS8995FQ
Fiber signal detect pin for port 4.
Analog ground.
1.8V analog V
Analog ground.
1.8V analog V
Analog ground.
Factory test pins. MUX1 and MUX2 should be left unconnected for
normal operation
Mode
Normal Operation
Full-chip power down. Active low.
Reserved pin. No connect.
Digital ground.
1.8V digital core V
PHY[5] MII transmit enable.
PHY[5] MII transmit bit 3.
PHY[5] MII transmit bit 2.
PHY[5] MII transmit bit 1.
PHY[5] MII transmit bit 0.
PHY[5] MII transmit error.
PHY[5] MII transmit clock. PHY mode MII.
Digital ground.
3.3V digital V
PHY[5] MII receive clock. PHY mode MII.
12
DD
DD
DD
DD
for digital I/O circuitry.
.
.
.
DD
.
DD
.
MUX1
NC
M9999-091508
MUX2
NC