LAN9312-NU SMSC, LAN9312-NU Datasheet - Page 110
LAN9312-NU
Manufacturer Part Number
LAN9312-NU
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-NU
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)
185 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-NU
Manufacturer:
Microchip Technology
Quantity:
10 000
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Revision 1.7 (06-29-10)
8.4.8
D[31:0] (INPUT)
PIO Writes
PIO writes are used for all LAN9312 write cycles. PIO writes can be performed using Chip Select (nCS)
or Write Enable (nWR). A PIO write cycle begins when both nCS and nWR are asserted. The cycle
ends when either or both nCS and nWR are de-asserted. Either or both of these control signals must
de-assert between cycles for the period specified in
page
must be de-asserted between cycles for the period specified. The PIO write cycle is illustrated in the
functional timing diagram in
The END_SEL signal has the same timing characteristics as the address lines.
Please refer to
for PIO write operations.
nCS, nWR
END_SEL
449. They may be asserted and de-asserted in any order. Either or both of these control signals
A[x:2]
Figure 8.7 Functional Timing for PIO Write Operation
Section 15.5.8, "PIO Write Cycle Timing," on page 449
Figure
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
8.7.
110
VALID
VALID
Table 15.12, “PIO Write Cycle Timing Values,” on
VALID
for the AC timing specifications
SMSC LAN9312
Datasheet
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