PRELIMINARY
ICS83054I-01
Integrated
Circuit
Systems, Inc.
4-BIT, 2:1,
S
INGLE-ENDED
MULTIPLEXER
GENERAL DESCRIPTION
FEATURES
The ICS83054I-01 is a 4-bit, 2:1, Single-ended Mul- • 4-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 ICS83054I-01 has two selectable single-ended
clock inputs and four 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 four
transceivers which need to be independently set for different
rates. For example, a board may have four 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 Error Correction) or non-FEC rates.The device
operates up to 250MHz and is packaged in a 16 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
Pulldown
SEL0
1
2
3
4
5
6
7
8
SEL3
Q3
VDDO
GND
Q2
SEL2
CLK1
VDD
16
15
14
13
12
11
10
9
SEL0
Q0
VDDO
GND
Q1
SEL1
CLK0
OE
Pulldown
CLK0
CLK1
0
1
Q0
Pulldown
ICS83054I-01
0
1
16-LeadTSSOP
Q3
4.4mm x 3.0mm x 0.92mm package body
G Package
Top View
Pulldown
SEL3
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.
83054AGI-01
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 24, 2004
1