DESCRIPTION
s
3.3V and 5V power supply options
s
440ps propagation delay
s
Separate and common select
s
High bandwidth output transitions
s
Internal 75K
input pull-down resistors
s
Available in 20-pin SOIC package
The SY100EL56V is a dual, fully differential 2:1
multiplexer. The differential data path makes the device
ideal for multiplexing low skew clock or other skew
sensitive signals. Multiple V
BB
pins are provided to ease
AC coupling input signals.
The device features both individual and common select
inputs to address both data path and random logic
applications.
The differential inputs have special circuitry which
ensures device stability under open input conditions.
When both differential inputs are left open the D input
will pull down to V
EE
, the /D input will bias around V
CC
/2
forcing the Q output LOW.
FEATURES
5V/3.3V DUAL
DIFFERENTIAL
2:1 MULTIPLEXER
SY100EL56V
TRUTH TABLE
SEL
Data
H
a
L
b
PIN CONFIGURATION/BLOCK DIAGRAM
SOIC
TOP VIEW
PIN NAMES
Pin
Function
D0
a
D1
a
Input Data a
D0
b
D1
b
Input Data b
SEL0SEL1
Individual Select Input
COM_SEL
Common Select Input
Q
0
Q
1
True Outputs
/Q
0
/Q
1
Inverted Outputs
V
CC
SEL0
V
CC
V
EE
D
0a
V
BB1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
D
0b
Q
0
Q
0
COM_SEL
Q
1
SEL1
Q
1
D
1a
V
BB0
D
1b
D
0a
D
0b
D
1a
D
1b
1
Rev.: C
Amendment: /1
Issue Date:
May 2000
2
SY100EL56V
Micrel
AC ELECTRICAL CHARACTERISTICS
V
EE
=V
EE
(Min) to V
EE
(Max); V
CC
= GND
T
A
= -40
C
T
A
= 0
C
T
A
= +25
C
T
A
= +85C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max. Unit
t
PLH
Propagation
D (Diff)
340
--
540
350
--
550
360
--
560
380
--
580
ps
t
PHL
Delay
D (SE)
290
--
590
300
--
600
310
--
610
330
--
630
to Output
SEL
430
--
730
440
--
740
440
--
740
450
--
750
COM_SEL
430
--
730
440
--
740
440
--
740
450
--
750
t
SKEW
Within Device Skew
(1)
--
40
80
--
40
80
--
40
80
--
40
80
ps
Duty Cycle Skew
(2)
--
--
100
--
--
100
--
--
100
--
--
100
ps
V
PP
(AC) Minimum Input Swing
(3)
150
--
1000
150
--
1000
150
--
1000
150
--
1000
mV
V
CMR
Common Mode Range
V
V
EE
= 3.0V to 3.8V
(4)
V
PP
< 500mV
2.0
--
0.4
2.1
--
0.4
2.1
--
0.4
2.1
--
0.4
V
PP
500mV
1.8
--
0.4
1.9
--
0.4
1.9
--
0.4
1.9
--
0.4
V
EE
= 4.2V to 5.5V
(5)
V
PP
< 500mV
3.2
--
0.4
3.3
--
0.4
3.3
--
0.4
3.3
--
0.4
V
PP
500mV
3.0
--
0.4
3.1
--
0.4
3.1
--
0.4
3.1
--
0.4
t
r
Output Rise/Fall Times Q
200
--
540
200
--
540
200
--
540
200
--
540
ps
t
f
(20% 80%)
DC ELECTRICAL CHARACTERISTICS
(1)
T
A
= -40
C
T
A
= 0
C
T
A
= +25
C
T
A
= +85C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
I
EE
Power Supply Current
--
20
24
--
20
24
--
20
24
--
20
24
mA
V
BB
Output Reference
1.38
--
1.26 1.38
--
1.26 1.38
--
1.26 1.38
--
1.26
V
Voltage
I
IH
Input HIGH Current
--
--
150
--
--
150
--
--
150
--
--
150
A
I
IL
Input LOW Current
A
Dn
0.5
--
--
0.5
--
--
0.5
--
--
0.5
--
--
Dn
600
--
--
600
--
--
600
--
--
600
--
--
V
PP
(DC)
Input Sensitivity
(2)
50
--
--
50
--
--
50
--
--
50
--
--
mV
V
EE
=V
EE
(Min) to V
EE
(Max); V
CC
= GND
NOTES:
1. Parametric values specifed at:
100EL56V Series:
(3.0V to 3.8V) or (4.2V to 5.5V)
2. Differential input voltage required to obtain a full ECL swing on the outputs.
NOTES:
1. Within device skew is defined as identical transitions on similar paths through a device.
2. Duty cycle skew is defined only for differential operation when the delays are measured from the cross point of the inputs to the cross point of the outputs.
3. Minimum input swing for which AC parameters are guaranteed.
4. The CMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within the specified
range and the peak-to-peak voltage lies between V
PP
(min) and 1V. The lower end of the CMR range varies 1:1 with V
EE
. The numbers in the spec table
assume a nominal V
EE
= 3.3V. Note for PECL operation, the V
CMR
(min) will be fixed at 3.3V |V
CMR
(min)|.
Ordering
Package
Operating
Code
Type
Range
SY100EL56VZC
Z20-1
Commercial
SY100EL56VZCTR
Z20-1
Commercial
PRODUCT ORDERING CODE
5. The CMR range is referenced to the most positive side of the differential
input signal. Normal operation is obtained if the HIGH level falls within the
specified range and the peak-to-peak voltage lies between V
PP
(min) and
1V. The lower end of the CMR range varies 1:1 with V
EE
. The numbers
in the spec table assume a nominal V
EE
= 4.5V. Note for PECL operation,
the V
CMR
(min) will be fixed at 5.0V |V
CMR
(min)|.
4
SY100EL56V
Micrel
MICREL-SYNERGY
3250 SCOTT BOULEVARD
SANTA CLARA
CA 95054
USA
TEL
+ 1 (408) 980-9191
FAX
+ 1 (408) 914-7878
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
2000 Micrel Incorporated
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