LU82551QM 860611 Intel, LU82551QM 860611 Datasheet - Page 18
LU82551QM 860611
Manufacturer Part Number
LU82551QM 860611
Description
Manufacturer
Intel
Datasheet
1.LU82551QM_860611.pdf
(120 pages)
Specifications of LU82551QM 860611
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
196
Lead Free Status / RoHS Status
Compliant
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82551QM — Networking Silicon
4.4
12
Table 6.
Table 7.
Local Memory Interface Signals
System Management Bus (SMB) Interface Signals
System Management Bus (SMB) Interface Signals
FLCS#
FLOE#
FLWE#
MDMCS#
SMBDATA
SMBCLK
SMB_ALERT#/
LAN_PWR_GOOD
Symbol
Symbol
OUT
OUT
OUT
OUT
Type
IN
OD
IN
OD
OD
Type
Flash Chip Select. The Flash Chip Select pin provides an active low
Flash or modem chip select signal. This signal in combination with the
Modem Chip Select (MDMCS#) signal determines which device, Flash
or modem, is being used. This pin should be left floating if Flash and
modem functionality are not used.
Flash Output Enable. This pin provides an active low output enable
control (read) to the Flash memory. If the modem is enabled, this is an
active low output enable (read) of the modem. This pin should be left
floating if Flash and modem functionality are not used.
Flash Write Enable. This pin provides an active low write enable
control to the Flash memory. If the modem is enabled, this is an active
low write enable to the modem. This pin should be left floating if Flash
and modem functionality are not used.
Modem Chip Select. This pin provides an active low modem chip
select. When it is set to 0b, the Flash port is used as a modem port;
when 1b, a Flash port. This pin should be left floating if Flash and
modem are not used.
Alert Bus Data. This signal is stable when the Alert Bus Clock signal is high.
This open drain signal should be pulled high to V
Alert Bus Clock. This pin is used for the Alert Bus Clock signal. One clock
pulse is generated for each data bit transferred. It is an open drain signal and
should be pulled high to V
Bus Alert/Main Power Good. This is a multiplexed pin used as the Bus
Alert pin and Main Power Good pin. As the Bus Alert pin, it is used as an
interrupt signal for a slave device on the Alert Bus. As the Main Power Good
pin it indicates that the main power supply is stable. This pin must be pulled
high to V
CC
if it is not connected.
Name and Function
CC
Name and Function
in all cases.
CC
in all cases.
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