sy89809l Micrel Semiconductor, sy89809l Datasheet

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sy89809l

Manufacturer Part Number
sy89809l
Description
Sy89809l 3.3v 1 9 High-performance Low-voltage Bus Clock Driver
Manufacturer
Micrel Semiconductor
Datasheet

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Micrel, Inc.
Note:
1. The OE (output enable) signal is synchronized with the low level of the
Precision Edge is a registered trademark of Micrel, Inc.
M9999-092005
hbwhelp@micrel.com or (408) 955-1690
LVPECL_CLK
/LVPECL_CLK
LOGIC SYMBOL
TRUTH TABLE
FEATURES
3.3V core supply, 1.8V output supply for reduced
power
LVPECL and HSTL inputs
9 differential HSTL (low-voltage swing) output pairs
HSTL outputs drive 50 to ground with no
offset voltage
500MHz maximum clock frequency
Low part-to-part skew (200ps max.)
Low pin-to-pin skew (50ps max.)
Available in 32-pin TQFP package
HSTL_CLK and LVPECL_CLK signal.
OE
HSTL_CLK
/HSTL_CLK
0
0
1
1
CLK_SEL
(1)
OE
CLK_SEL
0
1
0
1
0
1
LVPECL_CLK
HSTL_CLK
Q
LOW
LOW
0
LEN
D
– Q
Q
8
/LVPECL_CLK
9
9
3.3V 1:9 HIGH-PERFORMANCE,
LOW-VOLTAGE BUS CLOCK DRIVER
/HSTL_CLK
/Q
HIGH
HIGH
0
/Q0 – /Q8
– /Q
Q0 – Q8
8
1
with 9 differential HSTL (High-Speed Transceiver Logic)
output pairs. The part is designed for use in low-voltage
(3.3V/1.8V) applications which require a large number of
outputs to drive precisely aligned, ultralow skew signals to
their destination. The input is multiplexed from either HSTL
or LVPECL (Low-Voltage Positive-Emitter-Coupled Logic)
by the CLK_SEL pin. The Output Enable (OE) is
synchronous so that the outputs will only be enabled/
disabled when they are already in the LOW state. This
avoids any chance of generating a runt clock pulse when
the device is enabled/disabled as can happen with an
asynchronous control.
and low part-to-part skew (200ps max.)—performance
previously unachievable in a standard product having such
a high number of outputs. The SY89809L is available in a
single space saving package, enabling a lower overall cost
solution.
HSTL
HSTL
LVPECL
LVCMOS/LVTTL
SIGNAL GROUPS
DESCRIPTION
The SY89809L is a High-Performance Bus Clock Driver
The SY89809L features low pin-to-pin skew (50ps max.)
APPLICATIONS
High-performance PCs
Workstations
Parallel processor-based systems
Other high-performance computing
Communications
Level
Direction
Output
Input
Input
Input
HSTL_CLK, /HSTL_CLK
Q
LVPECL_CLK, /LVPECL_CLK
CLK_SEL, OE
0
– Q
Precision Edge
8
, /Q
Rev.: E
Issue Date: September 2005
Precision Edge
Signal
0
– /Q
Precision Edge
SY89809L
8
Amendment: /0
SY89809L
®
®
®

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sy89809l Summary of contents

Page 1

... The SY89809L features low pin-to-pin skew (50ps max.) and low part-to-part skew (200ps max.)—performance 9 previously unachievable in a standard product having such Q0 – high number of outputs. The SY89809L is available /Q0 – /Q8 single space saving package, enabling a lower overall cost solution. ...

Page 2

... Ground Ground. 2 Precision Edge® (1) Operating Package Range Marking Industrial SY89809LTC Industrial SY89809LTC Industrial SY89809LTH with Pb-Free bar line indicator Pb-Free Industrial SY89809LTH with Pb-Free bar line indicator Pb-Free = Electricals only. A and t requirements S H pin as possible. CCI pins as possible. All V ...

Page 3

... Typ. Max. Min. Typ. — 1.2 1.0 — — 0.4 0.2 — +0.1 — 1.6 V +0.1 — X — V –0.1 –0.3 — X — 0.9 0.68 — — –350 +20 — — –500 — — ® Precision Edge SY89809L Max. Unit 3.6 V 2.0 V 140 mA Max. Unit 1.2 V 0 –0 0.9 V –350 A –500 A ...

Page 4

... Min. Typ. 2.0 — — 2.0 — — 0.8 — +20 — –250 +20 — — –600 — 4 Precision Edge® SY89809L Max. Min. Max. – 0.880 V – 1.165 V – 0.880 CCI CCI CCI – 1.475 V – 1.810 V – 1.475 CCI CCI CCI +150 — ...

Page 5

... CMR ® SY89809L Max. Unit — ns — MHz 50 ps 200 ps — mV –0.4 V — ns — ns 650 ps (min.). PP ...

Page 6

... Micrel, Inc. OUTPUT WAVEFORMS M9999-092005 hbwhelp@micrel.com or (408) 955-1690 25¡C CCI 1.6V CCO TIME (2ns/div) Figure 1. 100MHz Output Waveform 25¡C CCI 1.6V CCO TIME (2ns/div) Figure 2. 300MHz Output Waveform 6 Precision Edge® SY89809L ...

Page 7

... Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify M9999-092005 hbwhelp@micrel.com or (408) 955-1690 + 1 (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 7 Precision Edge http://www.micrel.com ® SY89809L ...

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