LAN9312-NZW SMSC, LAN9312-NZW Datasheet - Page 31
![Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch](/photos/27/13/271362/lan9312_sml.jpg)
LAN9312-NZW
Manufacturer Part Number
LAN9312-NZW
Description
Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
Manufacturer
SMSC
Type
Two Port Managed Ethernet Switchr
Datasheet
1.LAN9312-NZW.pdf
(458 pages)
Specifications of LAN9312-NZW
Ethernet Connection Type
10 Base-T, 100 Base-TX
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Product
Ethernet Switches
Number Of Transceivers
1
Standard Supported
802.3, 802.3u
Data Rate
10 Mbps, 100 Mbps
Supply Voltage (max)
3.3 V
Supply Voltage (min)
0 V
Supply Current (max)
186 mA, 295 mA
Maximum Operating Temperature
+ 70 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9312-NZW
Manufacturer:
Standard
Quantity:
143
Company:
Part Number:
LAN9312-NZW
Manufacturer:
Microchip Technology
Quantity:
10 000
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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
PIN
PIN
60
61
96
98
Note: Refer to
Direct Access
EEPROM I
Input/Output
Data Output
Serial Data
Type Strap
Data FIFO
Endianess
Data Input
EEPROM
Microwire
EEPROM
Microwire
EEPROM
NAME
NAME
Select
Select
the use of these signals.
2
C
Chapter 8, "Host Bus Interface (HBI)," on page 99
EEPROM_TYPE
Table 3.4 Host Bus Interface Pins (continued)
FIFO_SEL
END_SEL
SYMBOL
SYMBOL
EE_SDA
EEDO
EEDI
Table 3.5 EEPROM Pins
DATASHEET
BUFFER
BUFFER
IS/OD8
Note 3.3
TYPE
TYPE
(PD)
O8
IS
IS
IS
IS
31
Data FIFO Direct Access Select: When driven
high, all accesses to the LAN9312 are directed to
the RX and TX Data FIFO’s. All reads are from the
RX Data FIFO, and all writes are to the TX Data
FIFO. In this mode, the address input is ignored.
Refer to
Mode," on page 167
Endianess Select: When this signal is set high,
big endian mode is selected. When low, little
endian mode is selected. This signal may be
dynamically changed or held static. Refer to
Chapter 8, "Host Bus Interface (HBI)," on page 99
for additional information.
EEPROM Microwire Data Input (EEDI): In
Microwire EEPROM mode (EEPROM_TYPE = 0),
this pin is the Microwire EEPROM serial data input.
EEPROM I
(EE_SDA): In I
(EEPROM_TYPE = 1), this pin is the I
serial data input/output.
Note:
EEPROM Microwire Data Output: In Microwire
EEPROM mode (EEPROM_TYPE = 0), this pin is
the Microwire EEPROM serial data output.
Note:
Note:
EEPROM Type Strap: Configures the EEPROM
type. See
0 = Microwire Mode
1 = I
Note:
2
C Mode
Section 14.1.3, "Direct FIFO Access
If I
required when using an EEPROM and is
recommended if no EEPROM is attached.
In I
is not used and is driven low.
When not using a Microwire or I
EEPROM, an external pull-down resistor
is recommended on this pin.
When not using a Microwire or I
EEPROM, an external pull-down resistor
is recommended on this pin.
Note 3.4
2
2
C Serial Data Input/Output
2
C is selected, an external pull-up is
C mode (EEPROM_TYPE=1), this pin
2
C EEPROM mode
for additional information regarding
DESCRIPTION
DESCRIPTION
for additional information.
Revision 1.7 (06-29-10)
2
C EEPROM
2
2
C
C
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