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PDF SY55852U Data sheet ( Hoja de datos )
| Número de pieza | SY55852U | |
| Descripción | D FLIP-FLOP | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Micrel, Inc.
D FLIP-FLOP
SuperLite™
SuperSLYit5e5™852U
SY55852U
FEATURES
s 2.5GHz min. fMAX
s 2.3V to 5.7V power supply
s Single bit register memory
s Synchronizes 1 bit of data to a clock
s Optimized to work with SuperLite™ family
s Fully differential
s Accepts CML, PECL, LVPECL input logic levels
s Source terminated CML outputs for fast edge rates
s Available in a tiny 10-pin MSOP
SuperLite™
DESCRIPTION
The SY55852U is a flip-flop used to synchronize data
to a clock. Its differential output will reproduce and
remember the value on its input at the rising edge of the
clock. In addition, an asynchronous, level sensitive reset
is provided. For a synchonous reset, the SY55851U
AnyGate™ can be used.
SY55852U inputs can be terminated with a single
resistor between the true and complement pins of a given
input.
The SY55852U is a member of Micrel's SuperLite™
family of high-speed CML logic. This family features very
small packaging and 2.3V to 5.7V operation.
APPLICATIONS
s High-speed logic
s OC-48 communication systems
FUNCTIONAL BLOCK DIAGRAM
DATA
CLOCK
RESET
DQ
R
OUT
SuperLite is a trademark of Micrel, Inc.
M9999-110705
[email protected] or (408) 955-1690
1
Rev.: D Amendment: /0
Issue Date: November 2005
1 page  
Micrel, Inc.
AC ELECTRICAL CHARACTERISTICS(Note 1)
VCC = 2.3V to 5.7V; GND = 0V; TA = –40°C to +85°C; unless noted.
Symbol
Parameter
Condition
fMAX
tpd
Max. Operating Frequency
Propagation Delay
CLK to Q
R to Q
tS Set-Up Time
tH Hold Time
tRR Reset Recovery
tPW Minimum Pulse Width CLK to Q VCC < 3V
VCC ≥ 3V
R to Q
tr,tf CML Output Rise/Fall Times
(20% to 80%)
Note 1. Tested using environment of Figure 3b, 50Ω load CML output.
TIMING DIAGRAMS
CLK
50%
DATA
RESET
tS
tH
50%
Q
50%
50%
tpd tpd
SuperLite™
SY55852U
Min Typ Max Units
2.5 GHz
400 ps
500
40 ps
40 ps
400 ps
160 ps
140
250
35 150 ps
tRR
M9999-110705
[email protected] or (408) 955-1690
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SY55852U.PDF ] | |
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