1
SY100S371
Micrel, Inc.
M9999-042307
hbwhelp@micrel.com or (408) 955-1690
TRIPLE 4-INPUT
MULTIPLEXER
WITH ENABLE SY100S371
FEATURES
■Max. propagation delay of 1000ps
■IEE 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 28-pin PLCC packages
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 pull-
down resistors.
Rev.: I Amendment: /0
Issue Date: April 2007
BLOCK DIAGRAM
S
0
S
1
I
0a
I
1a
I
2a
I
3a
I
0b
I
1b
I
2b
I
3b
I
0c
I
1c
I
2c
I
3c
Z
a
Z
a
Z
b
Z
b
Z
c
Z
c
E
2
SY100S371
Micrel, Inc.
M9999-042307
hbwhelp@micrel.com or (408) 955-1690
PACKAGE/ORDERING INFORMATION
28-Pin PLCC (J28-1)
Ordering Information
Package Operating Package Lead
Part Number Type Range Marking Finish
SY100S371JC J28-1 Commercial SY100S371JC Sn-Pb
SY100S371JCTR(1) J28-1 Commercial SY100S371JC Sn-Pb
SY100S371JZ(2) J28-1 Commercial SY100S371JZ with Matte-Sn
Pb-Free bar-line indicator
SY100S371JZTR(1, 2) J28-1 Commercial SY100S371JZ with Matte-Sn
Pb-Free bar-line indicator
Notes:
1. Tape and Reel.
2. Pb-Free package is recommended for new designs.
Zb
Zb
VCCA
VCC
Zc
VCC
S0
VEE
E
S1
I0b
VEES
4
3
2
1
28
27
12
13
14
15
16
17
19
11
20
10
21
9
22
8
23
7
24
6
Top View
PLCC
J28-1
Zc
I1b 2618 25
5
I3a
I2a
I1a
VEES
I0a
Za
Za
I0c
VEES
I3b
I1c
I2b
I2c
I3c
Inputs Outputs
ES0S1Zn
LLLI0X
LHLI1X
LLHI2X
LHHI3X
HXXL
Note:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
TRUTH TABLE(1)
Pin Function
I0X – I3X Data Inputs (x = a, b or c)
S0, S1Select Inputs
E Enable Input (Active LOW)
Za – ZcData Outputs
Za – ZcComplementary Data Outputs
VEES VEE Substrate
VCCA VCCO for ECL Outputs
PIN NAMES
3
SY100S371
Micrel, Inc.
M9999-042307
hbwhelp@micrel.com or (408) 955-1690
DC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
Symbol Parameter Min. Typ. Max. Unit Condition
IIH Input HIGH Current µAVIN = VIH (Max.)
I0X – I3X — — 250
S0, S1, E — — 300
IEE Power Supply Current –68 –48 –34 mA Inputs Open
AC ELECTRICAL CHARACTERISTICS
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
tPLH Propagation Delay 300 1000 300 1000 300 1000 ps
tPHL I0X – I3X to Output
tPLH Propagation Delay 400 1400 400 1400 400 1400 ps
tPHL S0, S1 to Output
tPLH Propagation Delay 400 1300 400 1300 400 1300 ps
tPHL S0, S1 to Output
tTLH Transition Time 300 900 300 900 300 900 ps
tTHL 20% to 80%, 80% to 20%
TIMING DIAGRAM
Propagation Delay and Transition Times
Note:
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
20%
80%
OUTPUT
INPUT
50%
tPLH tPHL
50%
20%
80%
50%
tPHL tPLH
tTLH tTHL
TRUE
COMPLEMENT
0.7 ± 0.1 ns0.7 ± 0.1 ns –0.95V
–1.69V
4
SY100S371
Micrel, Inc.
M9999-042307
hbwhelp@micrel.com or (408) 955-1690
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2006 Micrel, Incorporated.
