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NB4L52_07 Datasheet, PDF (1/8 Pages) ON Semiconductor – 2.5 V/3.3 V/5.0 V Differential Data/Clock D Flip-Flop with Reset Multi-Level Inputs to LVPECL Translator w/ Internal Termination | |||
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NB4L52
2.5 V/3.3 V/5.0 V Differential
Data/Clock D FlipâFlop
with Reset
MultiâLevel Inputs to LVPECL Translator
w/ Internal Termination
The NB4L52 is a differential Data and Clock D flipâflop with a
differential asynchronous Reset. The differential inputs incorporate
internal 50 W termination resistors and will accept PECL, LVPECL,
LVCMOS, LVTTL, CML, or LVDS logic levels. When Clock
transitions from Low to High, Data will be transferred to the
differential LVPECL outputs. The differential Clock inputs allow the
NB4L52 to also be used as a negative edge triggered device. The
device is housed in a small 3x3 mm 16 pin QFN package.
Features
⢠Maximum Input Clock Frequency > 4 GHz Typical
⢠330 ps Typical Propagation Delay
⢠145 ps Typical Rise and Fall Times
⢠Differential LVPECL Outputs, 750 mV PeakâtoâPeak, Typical
⢠Operating Range: VCC = 2.375 V to 5.5 V with VEE = 0 V
⢠Internal Input Termination Resistors, 50 W
⢠Functionally Compatible with Existing 2.5 V/3.3 V/5.0 V LVEL,
LVEP, EP, and SG Devices
⢠â40°C to +85°C Ambient Operating Temperature
⢠These are PbâFree Devices*
http://onsemi.com
1
QFNâ16
MN SUFFIX
CASE 485G
MARKING DIAGRAM*
16
1
NB4L
52
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbâFree Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
Application Note AND8002/D.
VTD
D
Data
D
Q
VTD
VTCLK
Q
CLK
CLK
VTCLK
Clock
Reset
*For additional information on our PbâFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2007
1
January, 2007 â Rev. 2
VTR R R VTR
Figure 1. Logic Diagram
Table 1. TRUTH TABLE
R
D
CLK
Q
H
x
x
L
L
L
Z
L
L
H
Z
H
Z = LOW to HIGH Transition
x = Donât Care
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
Publication Order Number:
NB4L52/D
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