83947 Datasheet, PDF (1/10 Pages) Integrated Device Technology – Maximum output frequency

Low Skew, 1-to-9
LVCMOS Fanout Buffer
83947
DATASHEET
GENERAL DESCRIPTION
The ICS83947I is a low skew, 1-to-9 LVCMOS Fanout Buffer. The low
impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series
or parallel terminated transmission lines. The effective fanout can be
increased from 9 to 18 byutilizing the ability of the outputs to drive two
series terminated lines.
Guaranteed output and part-to-part skew characteristics make the
ICS83947I ideal for high performance, single ended applications that
also require a limited output voltage.
FEATURES
• 9 LVCMOS/LVTTL outputs
• Selectable CLK0 and CLK1 can accept the following
input levels: LVCMOS and LVTTL
• Maximum output frequency: 110MHz
• Output skew: 500ps (maximum)
• Part-to-part skew: 2ns (maximum)
• 3.3V operating supply
• -40°C to 85°C ambient operating temperature
• Lead-Free package available
BLOCK DIAGRAM
83947 REVISION B NOVEMBER 10, 2014
PIN ASSIGNMENT
32 31 30 29 28 27 26 25
GND
CLK_SEL
CLK0
CLK1
CLK_EN
OE
VDD
GND
1
24
2
23
3
22
4
5
ICS83947I
21
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
GND
Q3
VDDO
Q4
GND
Q5
VDDO
GND
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
1
©2014 Integrated Device Technology, Inc.