Integrated
Circuit
Systems, Inc.
ICS8343I
L
OW
S
KEW
1-
TO
-16
F
ANOUT
B
UFFER
F
EATURES
•
16 LVCMOS outputs
•
Output frequency up to 200MHz
•
250ps output skew
•·
700ps part to part
•
CMOS compatible clock input at 5V, LVTTL and LVCMOS
compatible at 3.3V and 2.5V
•
LVTTL output enable inputs
•
Dual output enable inputs facilitates 1-to-16 or 1-to-8 input to
output modes
•
5.0V, 3.3V, 2.5V or mixed 3.3V, 2.5V from -40°C to 85°C
ambient operating temperature
•
32 lead low-profile QFP(LQFP), 7mm x 7mm x 1.4mm
package body, 0.8mm package lead pitch
G
ENERAL
D
ESCRIPTION
The ICS8343I is a low skew, 1-to-16 Fanout
Buffer and a member of the HiPerClockS™ family
HiPerClockS™
of High Performance Clock Solutions from ICS.
The ICS8343I is at 5.0V, 3.3V, 2.5V and mixed
3.3V input and 2.5V supply modes over the com-
mercial temperature range. Guaranteed output and part-to-
part skew characteristics make the ICS8343I ideal for those
clock distribution applications demanding well defined per-
formance and repeatability.
,&6
B
LOCK
D
IAGRAM
VDD1
VDD
VDD2
P
IN
A
SSIGNMENT
OE1
OE2
Q15
Q14
Q13
Q2
Q1
Q0
32 31 30 29 28 27 26 25
CLK
VDD1
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q15
Q14
Q13
Q12
Q11
Q10
Q9
Q8
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
Q5
Q6
Q7
CLK
VDD
Q8
Q9
Q10
24
23
22
VDD2
VDD2
VDD2
Q12
Q11
GND
GND
GND
VDD1
VDD1
Q3
Q4
GND
GND
GND
ICS8343I
21
20
19
18
17
OE1
GND
OE2
32-Lead LQFP
Y package
Top View
8343I
www.icst.com/products/hiperclocks.html
1
REV. B MARCH 8, 2001
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
