鈥?/div>
Available in both, Standard and RoHS/Lead-Free
compliant packages
G
ENERAL
D
ESCRIPTION
The ICS8308I is a low-skew, 1-to-8 Fanout Buffer
and a member of the HiPerClockS鈩?family of
High Performance Clock Solutions from ICS. The
ICS8308I has two selectable clock inputs. The
CLK, nCLK pair can accept most differential input
levels. The LVCMOS_CLK can accept LVCMOS or LVTTL
input levels. The low impedance LVCMOS/LVTTL outputs
are designed to drive 50惟 series or parallel terminated
transmission lines. The effective fanout can be increased
from 8 to 16 by utilizing the ability of the outputs to drive two
series terminated transmission lines.
The ICS8308I is characterized for 3.3V core/3.3V output,
3.3V core/2.5V output or 2.5V core/2.5V output operation.
Guaranteed output and part-part skew characteristics make
the 8308I ideal for those clock distribution applications requiring
well defined performance and repeatability.
B
LOCK
D
IAGRAM
CLK_EN
Pullup
D
Q
LE
1
P
IN
A
SSIGNMENT
Q0
GND
CLK_SEL
LVCMOS_CLK
CLK
nCLK
CLK_EN
OE
V
DD
GND
Q1
V
DDO
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
DDO
Q2
GND
Q3
V
DDO
Q4
GND
Q5
V
DDO
Q6
GND
Q7
LVCMOS_CLK
Pullup
CLK
Pullup
nCLK
Pulldown
CLK_SEL
Pullup
Q0
0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
ICS8308I
24-Lead, 300-MIL TSSOP
4.4mm x 7.8mm x 0.92mm body package
G Package
Top View
OE
Pullup
8308AGI
www.icst.com/products/hiperclocks.html
1
REV. B JULY 25, 2005