fcm-8521-3 Finisar Corporation., fcm-8521-3 Datasheet - Page 5

• Manufacturer Part Number: fcm-8521-3
• Description: 1000base-t Copper Gbic Transceivers
• Manufacturer: Finisar Corporation.

FCM-8520/8521-3 1000BASE-T GBIC Product Specification
VI. Environmental Specifications
The FCM-8520-3 has an extended range from 0°C to +75°C case temperature as
specified in Table 8.
VII. Serial Communication Protocol
All Finisar GBICs are ‘Module Definition “4”’ and support the 2-wire serial
communication protocol outlined in the GBIC Specification
AT24C01A 128 byte E
the E
CMOS E
The 1000BASE-T physical layer IC can also be accessed via the 2-wire serial bus at
address A4h. For details interfacing with the PHY IC, see Marvell data sheet titled
“Alaska Ultra 88E1011/88E1001S Integrated Gigabit Ethernet Transceiver”
document number MV-5100281-00).
 Finisar Corporation
Rev A, Feb 2003
Serial Bus Timing
Requirements
Parameter
I
Environmental
Specifications
Parameter
Operating Temperature
Storage Temperature
2
C Clock Rate
2
PROM, see the Atmel data sheet titled “AT24C01A/02/04/08/16 2-Wire Serial
2
PROM.”
5
Symbol
Symbol
2
PROM with an address of A0h. For details on interfacing with
T
T
sto
op
Table 8. Serial bus timing requirements
Table 7. Environmental specifications
Min
0
Min
-40
0
Typ
100,000
Typ
Max
Max
Units Notes/Conditions
75
85
Hz
1
Units
. These GBICs use an Atmel
°C
°C
Notes/Conditions
Case temperature
Ambient temperature
F i n i s a r
6
(Marvell
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