KSZ8995M A4 Micrel Inc, KSZ8995M A4 Datasheet - Page 17

• Manufacturer Part Number: KSZ8995M A4
• Manufacturer: Micrel Inc

Specifications of KSZ8995M A4

• 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 Supply Voltage (max): 1.9/2.6/3.6V
• Operating Supply Voltage (min): 1.7/2.4/3V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Compliant

Note:
1. P = Power supply
June 2009
KS8995M
Pin Number
I = Input
O = Output
I/O = Bi-directional
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
PU = Strap pin pull-up
PD = Strap pin pull-down
Otri = Output tristated
NC = No Connect
114
113
115
119
61
66
57
55
54
53
52
51
56
47
48
11
20
26
33
10
19
25
32
84
5
4
PWRDN_N
RESERVE
Pin Name
PMRXDV
PMRXER
PMTXEN
PMTXER
SCANEN
PMTXD0
PMTXD1
PMTXD2
PMTXD3
PMTXC
RST_N
RXM1
RXM2
RXM3
RXM4
RXM5
SCOL
RXP1
RXP2
RXP3
RXP4
RXP5
PS0
PS1
Type
Ipd/O
Ipd/O
Ipd/O
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd
Ipu
NC
Ipu
Ipd
O
I
I
I
I
I
I
I
I
I
I
(1)
Port
5
5
5
5
5
5
5
5
5
1
2
3
4
5
1
2
3
4
5
Pin Function
PHY[5] MII receive data valid.
PHY[5] MII receive error. Strap option: PD (default) = 1522/1518 bytes;
PU = packet size up to 1536 bytes.
PHY[5] MII transmit clock. PHY mode MII
PHY[5] MII transmit bit 0
PHY[5] MII transmit bit 1
PHY[5] MII transmit bit 2
PHY[5] MII transmit bit 3
PHY[5] MII transmit enable
PHY[5] MII transmit error
Serial bus configuration pin. See “pin# 113.”
Serial bus configuration pin
If EEPROM is not present, the KS8995M will start itself with chip
default (00)...
Pin Config.
PS[1:0]=00
PS[1:0]=01
PS[1:0]=10
PS[1:0]=11
Full-chip power down. Active low.
Reserved pin. No connect.
Reset the KS8995M. Active low.
Physical receive signal - (differential)
Physical receive signal - (differential)
Physical receive signal - (differential)
Physical receive signal - (differential)
Physical receive signal - (differential)
Physical receive signal + (differential)
Physical receive signal + (differential)
Physical receive signal + (differential)
Physical receive signal + (differential)
Physical receive signal + (differential)
NC for normal operation. Factory test pin.
Switch MII collision detect.
17
Serial Bus Configuration
I2C Master Mode for EEPROM
Reserved
SPI Slave Mode for CPU Interface
Factory Test Mode (BIST)
M9999-062309
Micrel, Inc.