ICS8312AYLF 데이터 시트보기 (PDF) - Integrated Device Technology
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ICS8312AYLF Datasheet PDF : 18 Pages
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LOW SKEW, 1-TO-12 LVCMOS/LVTTL
FANOUT BUFFER
General Description
The ICS8312 is a low skew, 1-to-12 LVCMOS/
ICS
LVTTL Fanout Buffer and a member of the
HiPerClockS™ HiPerClockS™ family of High Performance Clock
Solutions from IDT. The ICS8312 single-ended clock
input accepts LVCMOS or LVTTL input levels. The
low impedance LVCMOS outputs are designed to drive 50Ω 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 characteristics
along with the 1.8V output capabilities makes the ICS8312 ideal
for high performance, single ended applications that also require a
limited output voltage.
ICS8312
Features
• Twelve LVCMOS/LVTTL outputs
• CLK input supports the following input types: LVCMOS, LVTTL
• Maximum output frequency: 250MHz
• Output skew: 150ps (maximum)
• Supply modes:
Core/Output
3.3V/3.3V
3.3V/2.5V
3.3V/1.8V
2.5V/2.5V
2.5V/1.8V
1.8V/1.8V
• 0°C to 85°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
Block Diagram
CLK_EN Pullup
D
Q
LE
CLK Pulldown
OE Pullup
12
Q[0:11]
IDT™ / ICS™ LVCMOS/LVTTL FANOUT BUFFER
1
Pin Assignment
GND
VDD
CLK_EN
CLK
GND
OE
VDD
GND
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
Q4
VDDO
Q5
GND
Q6
VDDO
Q7
GND
ICS8312
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS8312AY REV. D JULY 3, 2008
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