PRELIMINARY
ICS83056I-01
Integrated
Circuit
Systems, Inc.
6-BIT, 2:1,
S
INGLE-ENDED
MULTIPLEXER
GENERAL DESCRIPTION
FEATURES
The ICS83056I-01 is a 6-bit, 2:1, Single-ended Mul- • 6-bit, 2:1 single-ended multiplexer
tiplexer and a member of the HiPerClockS™fam-
ICS
• Nominal output impedance: 15Ω (VDDO =3 .3V)
• Maximum output frequency: 250MHz
• Propagation delay: 2.5ns (typical)
• Input skew: 45ps (typical)
HiPerClockS™
ily of High Performance Clock Solutions from ICS.
The ICS83056I-01 has two selectable single-ended
clock inputs and six single-ended clock outputs.
The output has a VDDO pin which may be set at 3.3V, 2.5V, or
1.8V, making the device ideal for use in voltage translation ap-
plications. An output enable pin places the output in
a high impedance state which may be useful for testing or
debug.Possible applications include systems with up to 6 trans-
ceivers which need to be independently set for different rates.
For example, a board may have six transceivers, each of which
need to be independently configured for 1 Gigabit Ethernet or
1 Gigabit Fibre Channel rates. Another possible application may
require the ports to be independently set for FEC (Forward Er-
ror Correction) or non-FEC rates. The device operates up to
250MHz and is packaged in a 20 TSSOP.
• Part-to-part skew: TBD
• Additive phase jitter, RMS (12KHz - 20MHz):
0.07ps (typical)
• Operating supply modes:
VDD/VDDO
3.3V/3.3V
3.3V/2.5V
3.3V/1.8V
2.5V/2.5V
2.5V/1.8V
• -40°C to 85°C ambient operating temperature
BLOCK DIAGRAM
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
20
19
18
17
16
15
14
13
12
11
SEL5
Q5
VDDO
GND
Q4
SEL4
CLK1
VDD
SEL0
Q0
VDDO
GND
Q1
SEL1
CLK0
OE
Pulldown
SEL0
Pulldown
CLK0
CLK1
0
1
Q0
Pulldown
9
10
Q3
SEL3
Q2
SEL2
ICS83056I-01
0
1
20-LeadTSSOP
Q5
6.5mm x 4.4mm x 0.92mm package body
G Package
Top View
Pulldown
SEL5
OE
Pullup
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
83056AGI-01
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 7, 2005
1