Micrel, Inc.
Ordering Information (1)
Part Number
Marking
SM802128UMG
802128
SM802128UMGTR
802128
Note:
1. Devices are Green, RoHS, and PFOS compliant.
Pin Configuration
Shipping
Tray
Tape and Reel
Temperature Range
–40°C to +85°C
–40°C to +85°C
SM802128
Package
44-Pin QFN
44-Pin QFN
Pin Description
Pin Number
25, 26
28, 29
32, 33
35, 36
41, 42
1, 2
4, 5
7, 8
31, 37, 38
43, 44, 16
24, 39
Pin Name
/Q1, Q1
/Q2, Q2
/Q3, Q3
/Q4, Q4
/Q5, Q5
/Q6, Q6
/Q7, Q7
/Q8, Q8
VDDO1
VDDO2
VSSO1
Pin Type
O, (DIF)
O, (DIF)
PWR
PWR
PWR
44-Pin QFN
(Top View)
Pin Level Pin Function
LVPECL
Differential Clock Outputs from Bank 1 (156.25MHz or
312.5MHz).
LVPECL
Differential Clock Outputs from Bank 2 (156.25MHz or
312.5MHz).
Power Supply for the Outputs on Bank 1.
Power Supply for the Outputs on Bank 2.
Power Supply Ground for the Outputs on Bank 1.
January 2012
2
hbwhelp@micrel.com or (408) 955-1690