8312AY

http://www.icst.com/products/hiperclocks.html

REV. C JUNE 14, 2004

1

Integrated

Circuit

Systems, Inc.

ICS8312

The ICS8312 is a low skew, 1-to-12 LVCMOS /

LVTTL Fanout Buffer and a member of the

HiPerClockS™family of High Performance Clock

Solutions from ICS. The ICS8312 single ended

clock input accepts LVCMOS or LVTTL input lev-

els. The low impedance LVCMOS outputs are designed to

drive 50

Ω series or parallel terminated transmission lines.The

effective fanout can be increased from 12 to 24 by utilizing

the ability of the outputs to drive two series terminated lines.

The ICS8312 is characterized at full 3.3V, 2.5V, and 1.8V,

mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating

supply modes. Guaranteed output and part-to-part skew char-

acteristics along with the 1.8V output capabilities makes the

ICS8312 ideal for high performance, single ended applica-

tions that also require a limited output voltage.

• 12 LVCMOS / LVTTL outputs

• LVCMOS / LVTTL clock input

• Maximum output frequency: 250MHz

• Output skew: 150ps (maximum)

• Operating supply modes:

Core/Output

3.3V/3.3V,

2.5V/2.5V,

1.8V/1.8V,

3.3V/2.5V,

3.3V/1.8V,

2.5V/1.8V

• 0°C to 85°C ambient operating temperature

• Lead-Free package available

• Industrial temperature information available upon request

HiPerClockS™

ICS

32 31 30 29 28 27 26 25

9

10 11 12 13 14 15 16

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

Q4

Q5

GND

Q6

Q7

GND

GND

CLK_EN

CLK

GND

OE

GND

ICS8312

32-Lead LQFP

7mm x 7mm x 1.4mm body package

Y Pacakge

Top View

Q0:Q11

CLK_EN

CLK

OE

nD

Q

LE

12