8304AMI www.icst.com/products/hiperclocks.html REV. B APRIL 4, 2002
1
Integrated
Circuit
Systems, Inc.
ICS8304I
LOW SKEW, 1-TO-4
LVCMOS / LVTTL FANOUT BUFFER
GENERAL DESCRIPTION
The ICS8304I is a low skew, 1-to-4 Fanout
Buffer and a member of the HiPerClockS™
family of High Performance Clock Solutions
from ICS. The ICS8304I is characterized at
full 3.3V for input V
DD
, and mixed 3.3V and
2.5V for output operating supply modes (V
DDO
). Guaran-
teed output and part-to-part skew characteristics make
the ICS8304I ideal for those clock distribution
applications demanding well defined performance and
repeatability.
FEATURES
• 4 LVCMOS / LVTTL outputs
• LVCMOS clock input
• CLK can accept the following input levels: LVCMOS, LVTTL
• Maximum output frequency: 166MHz
• Output skew: 60ps (maximum)
• Part-to-part skew: 650ps (maximum)
• Small 8 lead SOIC package saves board space
• 3.3V input, outputs may be either 3.3V or 2.5V supply modes
• -40°C to 85°C ambient operating temperature
BLOCK DIAGRAM PIN ASSIGNMENT
ICS8304I
8-Lead SOIC
3.8mm x 4.8mm, x 1.47mm package body
M Package
Top View
VDDO
VDD
CLK
GND
1
2
3
4
Q0
Q1
Q2
Q3
CLK
HiPerClockS™
,&6
Q3
Q2
Q1
Q0
8
7
6
5
