SY100S324

LOW POWER HEX
TTL-to-ECL
TRANSLATOR
Micrel, Inc.
DESCRIPTION
FEATURES
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SY100S324
SY100S324
Max. propagation delay of 1.4ns
IEE min. of –70mA
Industry standard 100K ECL levels
Extended supply voltage option:
VEE = –4.2V to –5.5V
Differential outputs
Voltage and temperature compensation for improved
noise immunity
Internal 75kΩ input pull-down resistors
Twice as fast as Fairchild’s 324
Function and pinout compatible with Fairchild F100K
Available in 28-pin PLCC package
The SY100S324 is a hex translator designed to convert
TTL logic levels to 100K ECL levels. The inputs are TTL
compatible with differential outputs that can either be
used as an inverting/non-inverting translator or as
differential line drivers. A common Enable (E), when LOW,
holds all inverting outputs HIGH and holds all noninverting outputs LOW.
When used in the differential mode, due to its high
common mode rejection, it overcomes voltage gradients
between the TTL and ECL ground systems. The VEE and
VTTL power may be applied in either order.
BLOCK DIAGRAM
PIN NAMES
E
Pin
Function
Q0
Q0
D0–D5
D0
E
Enable Inputs
Q0–Q5
Data Outputs
D1
Q1
Q1
Q0–Q5
Complementary Data Outputs
D2
Q2
Q2
VEES
VEE Substrate
VTTL
TTL VCC Power Supply
D3
Q3
Q3
VCCA
VCCO for ECL Outputs
D4
Q4
Q4
D5
Q5
Q5
M9999-042307
[email protected] or (408) 955-1690
Data Inputs
Rev.: I
1
Amendment: /0
Issue Date: April 2007
Micrel, Inc.
SY100S324
PACKAGE/ORDERING INFORMATION
Q1
Q1
Q0
VEES
Q0
D2
D1
Ordering Information
25 24 23 22 21 20 19
Q2
26
18
D0
Q2
27
17
VTTL
VCC
28
16
VCC
1
E
VEES
VCCA
VCCA
2
Q3
4
Top View
PLCC
J28-1
15
3
7
8
9
12
D4
Package
Type
Operating
Range
Package
Marking
Lead
Finish
SY100S324JC
J28-1
Commercial
SY100S324JC
Sn-Pb
SY100S324JCTR(1)
J28-1
Commercial
SY100S324JC
Sn-Pb
SY100S324JY(2)
J28-1
Industrial
SY100S324JY with
Pb-Free bar-line indicator
Matte-Tin
SY100S324JYTR(1, 2)
J28-1
Industrial
SY100S324JY with
Pb-Free bar-line indicator
Matte-Tin
10 11
VEES
Q5
Q5
D5
6
Q4
Q4
Q3
5
13
VEE
D3
14
Part Number
Notes:
1. Tape and Reel.
2. Pb-Free package is recommended for new designs.
28-Pin PLCC (J28-1)
M9999-042307
[email protected] or (408) 955-1690
2
Micrel, Inc.
SY100S324
DC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified, VCC = VCCA = GND, VTTL = +4.5V to +5.5V
Symbol
Parameter
Min.
Sim.
Max.
Unit
Condition
VOH
Output HIGH Voltage
–1025
–986
–880
mV
VIN = VIH (Max.)
VOL
Output LOW Voltage
–1810
–1674
–1620
mV
VIN = VIL (Min.)
Loading with 50Ω
VOHC
Output HIGH Voltage
–1035
—
—
mV
VIN = VIH (Min.)
VOLC
Output LOW Voltage
—
—
–1610
mV
VIN = VIL (Max.)
VIH
Input HIGH Voltage
2.0
—
5.0
V
Guaranteed HIGH Signal for All Inputs
VIL
Input LOW Voltage
0
—
0.8
V
Guaranteed LOW Signal for All Inputs
VCD
Input Clamp Diode Voltage
—
—
–1.5
V
IIN = –10mA
IIH
Input HIGH Current
Data
Enable
—
—
—
—
20
120
µA
VIN = +2.4V
All Other Inputs VIN = GND
—
—
1.0
mA
VIN = +5.5V, VTTL = Max.,
All Other Inputs VIN = GND
Loading with 50Ω to –2V
IIH
Input HIGH Current
Breakdown Test, All Inputs
IIL
Input LOW Current
Data
Enable
–1.2
–6.7
—
—
—
—
mA
VIN = +0.4V
All Other Inputs VIN = VIH
IEE
VEE Power Supply Current
–70
–45
–28
mA
All Inputs VIN = +4.0V
ITTL
VTTL Power Supply Current
—
25
35
mA
All Inputs VIN = GND
AC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified, VCC = VCCA = GND, VTTL = +4.5V to +5.5V
Symbol
Parameter
Min.
Typ.
Max.
Unit
tPLH
tPHL
Propagation Delay
Data and Enable to Output
400
850
1400
ps
tTLH
tTHL
Transition Time
20% to 80%, 80% to 20%
350
—
1700
ps
M9999-042307
[email protected] or (408) 955-1690
3
Condition
See Switching Wave Form Figures
Micrel, Inc.
SY100S324
SWITCHING WAVEFORM
2.5 ± 0.3 ns
2.5 ± 0.3 ns
+3.0V
80%
50%
INPUT
+1.5V
20%
0V
tPHL
tPLH
COMPLEMENT
50%
tPLH
tPHL
80%
50%
20%
TRUE
tTLH
tTHL
Figure 1. Propagation Delay and Transition Times
Note:
VEE = –4.2V to –5.5V unless otherwise specified, VCC = VCCA = GND, VTTL = +4.5V to +5.5V
TEST CIRCUIT
VIH
VTTL
0.1µF
0.1µF
L1
0.1µF
L2
SCOPE
CHAN A
SCOPE
CHAN B
RT
RT
L3
PULSE
GENERATOR
0.1µF
2.5µF
VEE
VCC
Figure 2. AC Test Circuit
Notes:
VCC, VCCA = +2V, VEE = –2.5V, VTTL = +7.0V, VIH = +6.0V
L1, L2 and L3 = equal length 50Ω impedance lines
RT = 50Ω terminator internal to scope
Decoupling 0.1µF from GND to VCC, VEE and VTTL
All unused outputs are loaded with 50Ω to GND
CL = Fixture and stray capacitance ≤ 3pF
M9999-042307
[email protected] or (408) 955-1690
4
Micrel, Inc.
SY100S324
28-PIN PLCC (J28-1)
Rev. A
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
USA
http://www.micrel.com
The information furnished by Micrel in this data sheet 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.
M9999-042307
[email protected] or (408) 955-1690
5