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TRIPLE 4-INPUT
MULTIPLEXER
WITH ENABLE
FEATURES
■ Max. propagation delay of 1000ps
■ I
EE min. of –68mA
■ Industry standard 100K ECL levels
■ Extended supply voltage option:
VEE = –4.2V to –5.5V
■ Voltage and temperature compensation for improved
noise immunity
■ Internal 75KΩ input pull-down resistors
■ 40% faster than Fairchild
■ 40% lower power than Fairchild
■ Function and pinout compatible with Fairchild F100K
■ Available in 24-pin CERPACK and 28-pin PLCC
packages
BLOCK DIAGRAM
SY100S371
DESCRIPTION
The SY100S371 is an ultra-fast triple 4-input multiplexer
with true and complementary outputs designed for use in
high-performance ECL systems. The multiplexer is
controlled by common select inputs S0 and S1. A logic
HIGH on the Enable (E) control input takes the outputs to
a logic LOW. The inputs on the device have 75KΩ pulldown resistors.
PIN CONFIGURATIONS
I3a
S0
S1
VEE
VEES
I0b
I1b
I2a
12
13
14
15
E
16
17
1911201021922823724
I1a
VEES
Top View
PLCC
J28-1
I0a
Za
Za
5
6
Zb
4
3
Zb
VCCA
2
1
VCC
VCC
28
27
Zc
2618
c
Z
25
S
0
S
1
I0c
I3b
I2b
VEES
I1c
I2c
I3c
I1bI0bE
EE
V
S1S
0
19
CCA
V
18
I
3a
17
I
2a
16
I
1a
15
I
0a
14
Z
a
13
Z
a
b
b
Z
Z
1
I
I
0a
I
1a
Z
I
2a
I
3a
I
0b
I
1b
I
2b
I
3b
I
0c
I
1c
I
2c
a
Z
a
Z
b
Z
b
Z
c
Z
c
2b
I
3b
2
3
I
0c
I
1c
I
2c
I
3c
Top View
Flatpack
4
F24-1
5
6
7248239221021112012
c
c
Z
Z
CC
V
I
3c
E
Rev.: G Amendment: /0
1
Issue Date: July, 1999
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Micrel
SY100S371
PIN NAMES
Pin Function
I0X – I3X Data Inputs (x = a, b or c)
S0, S1 Select Inputs
E Enable Input (Active LOW)
Za – Zc Data Outputs
Za – Zc Complementary Data Outputs
VEES VEE Substrate
CCA VCCO for ECL Outputs
V
TRUTH TABLE
ES0 S1 Zn
LLLI0X
LHLI1X
LLHI2X
LHHI3X
HXXL
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
(1)
Inputs Outputs
DC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
Symbol Parameter Min. Typ. Max. Unit Condition
IH Input HIGH Current µAVIN = VIH (Max.)
I
I0X – I3X ——250
S0, S1, E — — 300
EE Power Supply Current –68 –48 –34 mA Inputs Open
I
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Micrel
SY100S371
AC ELECTRICAL CHARACTERISTICS
CERPACK
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
T
A = 0°CTA = +25°CTA = +85°C
Symbol Parameter Min. Max. Min. Max. Min. Max. Unit Condition
PLH Propagation Delay 300 1100 300 1100 300 1100 ps
t
tPHL I0X – I3X to Output
PLH Propagation Delay 400 1500 400 1500 400 1500 ps
t
tPHL S0, S1 to Output
PLH Propagation Delay 400 1400 400 1400 400 1400 ps
t
tPHL S0, S1 to Output
t
TLH Transition Time 300 900 300 900 300 900 ps
tTHL 20% to 80%, 80% to 20%
PLCC
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
TA = 0°CTA = +25°CTA = +85°C
Symbol Parameter Min. Max. Min. Max. Min. Max. Unit Condition
PLH Propagation Delay 300 1000 300 1000 300 1000 ps
t
tPHL I0X – I3X to Output
PLH Propagation Delay 400 1400 400 1400 400 1400 ps
t
tPHL S0, S1 to Output
PLH Propagation Delay 400 1300 400 1300 400 1300 ps
t
tPHL S0, S1 to Output
TLH Transition Time 300 900 300 900 300 900 ps
t
tTHL 20% to 80%, 80% to 20%
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Micrel
TIMING DIAGRAM
SY100S371
INPUT
t
TRUE
OUTPUT
COMPLEMENT
NOTE:
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
PHL
t
PLH
t
TLH
Propagation Delay and Transition Times
20%
50%
80%
0.7 ± 0.1 ns0.7 ± 0.1 ns
50%
80%
50%
t
PLH
t
PHL
20%
t
–0.95V
–1.69V
THL
PRODUCT ORDERING CODE
Ordering Package Operating
Code Type Range
SY100S371FC F24-1 Commercial
SY100S371JC J28-1 Commercial
SY100S371JCTR J28-1 Commercial
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Micrel
24 LEAD CERPACK (F24-1)
SY100S371
Rev. 03
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Micrel
28 LEAD PLCC (J28-1)
SY100S371
Rev. 03
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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