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© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 0
1 Publication Order Number:
NB3U1548C/D
NB3U1548C
3.3V/2.5V/1.8V/1.5V 160 MHz
1:4 LVCMOS/LVTTL Low
Skew Over Voltage Tolerant
Fanout Buffer
Description
The NB3U1548C is an LVCMOS, overvoltage tolerant clock fanout
buffer targeted for clock generation in high performance
telecommunication, networking and computing applications. The
device is optimized for low skew clock distribution in low voltage
applications. The input overvoltage tolerance enables using this
device in mixed mode voltage applications. An output enable pin
controls whether the outputs are in the active or high impedance state.
Guaranteed output skew characteristics make the NB3U1548C ideal
for those applications demanding well defined performance and
repeatability. The NB3U1548C is packaged in a small SOIC−8 and in
an TSSOP−8 package.
Features
• Low skew 1:4 Fanout Buffer
• Supports 3.3 V, 2.5 V, 1.8 V and 1.5 V Power Supplies
• LVCMOS Input and Output Levels
• 3.6 V Overvoltage Tolerance at the Clock and Control Inputs
• Supports Clock Frequencies up to 160 MHz
• LVCMOS Compatible Control Input for Output Disable
• Output Disabled to a High Impedance State
• −40°C to 85°C Ambient Operating Temperature
• Available in Pb−Free RoHS Compliant Packages (SOIC−8,
TSSOP−8)
• These Devices are Pb−Free and are RoHS Compliant
Figure 1. Block Diagram
This document contains information on some products that are still under development.
ON Semiconductor reserves the right to change or discontinue these products without
notice.
MARKING
DIAGRAMS
A = Assembly Location
L = Wafer Lot
Y = Year
W, WW = Work Week
G = Pb−Free Package
SOIC−8
D SUFFIX
CASE 751
See detailed ordering and shipping information on page 9 o
f
this data sheet.
ORDERING INFORMATION
1548C
ALYWG
G
1
8
(Note: Microdot may be in either location)
1
8
TSSOP−8*
DT SUFFIX
CASE 948S
(*In Development)
154
YWW
AG
1
8
1
8
www.onsemi.com
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