100391QC - National Semiconductor

TL/F/10939

100391 Low Power Single Supply Hex TTL-to-ECL Translator

July 1992

100391

Low Power Single Supply Hex TTL-to-ECL Translator

General Description

The 100391 is a hex translator for converting TTL logic lev-

els to F100K ECL logic levels. The unique feature of this

translator, is the ability to do this translation using only one

a5V supply. The differential outputs allow each circuit to be

used as an inverting/non-inverting translator, or as a differ-

ential line driver. A common enable (E), when low, holds all

inverting outputs HIGH and all non-inverting inputs LOW.

The 100391 is ideal for those mixed ECL/TTL applications

which only have a a5V supply available. When used in the

differential mode, the 100391, due to its high common mode

rejection, overcomes voltage gradients between the TTL

and ECL ground systems.

Features

YOperates from a single a5V supply

YDifferential ECL outputs

Y2000V ESD protection

YCompanion chip to 100390 hex ECL-to-TTL translator

Logic Symbol

TL/F/10939–1

Pin Names Description

D0–D5Data Inputs (TTL)

Q0–Q5Data Outputs (PECL)

Q0–Q5Inverting Data Outputs (PECL)

E Enable Input (TTL)

Connection Diagrams

24-Pin DIP and SOIC

TL/F/10939–2

28-Pin PCC

TL/F/10939–3

C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

Logic Diagram

TL/F/10939–5

Truth Table

Inputs Outputs

DnEQ

HHH L

LHL H

HLL H

LLL H

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

Storage Temperature (TSTG)b65§Ctoa

150§C

Maximum Junction Temperature (TJ)

Ceramic a175§C

Plastic a150§C

VCC Pin Potential to

Ground Pin b0.5V to a7.0V

ECL Output Current

(DC Output HIGH) b50 mA

TTL Input Voltage (Note 3) b0.5V to a7.0V

TTL Input Current (Note 3) b30 mA to a5.0 mA

ESD (Last Passing Voltage) (Min) (Note 2) 2000V

Note 1: Absolute maximum ratings are those values beyond which the de-

vice may be damaged or have its useful life impaired. Functional operation

under these conditions is not implied.

Note 2: ESD testing conforms to MIL-STD-883, Method 3015.

Note 3: Either voltage limit or current limit is sufficient to protect inputs.

Recommended Operating

Conditions

Case Temperature (TC)

Commercial 0§Ctoa

85§C

Military b55§Ctoa

125§C

Supply Voltage (VCC) 4.5V to 5.5V

Commercial

Commercial Version

TTL-to-ECL DC Electrical Characteristics VCC ea

5.0V g10%, GND e0V

Symbol Parameter Min Typ Max Units Conditions

VOH Output HIGH Voltage VCC b1025 VCC b955 VCC b870 mV VIN eVIH (max) or VIL (min)

VOL Output LOW Voltage VCC b1890 VCC b1705 VCC b1620 mV Loading with 50Xto VCC b2V

VOHC Output HIGH Voltage VCC b1035 mV VIN eVIH (min) or VIL (max)

Corner Point High Loading with 50Xto VCC b2V

VOLC Output LOW Voltage VCC b1610 mV

Corner Point Low

VIH Input HIGH Voltage 2.0 5.0 V Over VTTL,V

EE,T

CRange

VIL Input LOW Voltage 0 0.8 V Over VTTL,V

EE,T

CRange

IIH Input HIGH Current 10 mAV

IN ea

2.7V

Breakdown Test 20 mAV

IN ea

5.5V

IIL Input LOW Current

Dnb0.8 mA VIN ea

0.5V

Eb4.2

VFCD Input Clamp b1.2 V IIN eb

18 mA

Diode Voltage

ICC VCC Supply Current 32 69 mA Inputs Open

Note 4: The specified limits represent the ‘‘worst case’’ value for the parameter. Since these values normally occur at the temperature extremes, additional noise

immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to

guarantee operation under ‘‘worst case’’ conditions.

DIP Package AC Electrical Characteristics

VCC e5.0V g10%

Symbol Parameter TCe0§CT

25§CT

85§CUnits Conditions

Min Max Min Max Min Max

tPLH Propagation Delay 0.30 1.40 0.35 1.30 0.40 1.30 ns

Figures 1, 2

tPHL Data to Output

tPLH Propagation Delay 0.40 1.50 0.45 1.40 0.50 1.40 ns

Figures 1, 2

tPHL Enable to Output

tTLH Transition Time 0.35 1.70 0.35 1.70 0.35 1.70 ns

Figures 1, 2

tTHL 20% to 80%, 80% to 20%

SOIC and PCC Package AC Electrical Characteristics

VCC e5.0V g10%

Symbol Parameter TCe0§CT

25§CT

85§CUnits Conditions

Min Max Min Max Min Max

tPLH Propagation Delay 0.30 1.40 0.35 1.30 0.40 1.30 ns

Figures 1

and

tPHL Data to Output

tPLH Propagation Delay 0.40 1.50 0.45 1.40 0.50 1.40 ns

tPHL Enable to Output

tTLH Transition Time 0.35 1.70 0.35 1.70 0.35 1.70 ns

tTHL 20% to 80%, 80% to 20%

tOSHL Maximum Skew Common Edge PCC Only

Output-to-Output Variation 750 750 750 ps (Note 1)

Data to Output Path

tOSLH Maximum Skew Common Edge PCC Only

Output-to-Output Variation 700 700 700 ps (Note 1)

Data to Output Path

tOST Maximum Skew Opposite Edge PCC Only

Output-to-Output Variation 450 450 450 ps (Note 1)

Data to Output Path

tPS Maximum Skew PCC Only

Pin (Signal) Transition Variation 525 525 525 ps (Note 1)

Data to Output Path

Note 1: Output-to-Output Skew is defined as the absolute value of the difference between the actual propagation delay for any outputs within the same packaged

device. The specifications apply to any outputs switching in the same direction either HIGH to LOW (tOSHL), or LOW to HIGH (tOSLH), or in opposite directions both

HL and LH (tOST). Parameters tOST and tPS guaranteed by design.

Industrial Version

DC Electrical Characteristics

VCC ea

5.0V g10%, GND e0V (Note 1)

Symbol Parameter TCeb

40§CT

Ctoa

85§CUnits Conditions

Min Max Min Max

VOH Output HIGH Voltage VCC b1085 VCC b870 VCC b1025 VCC b870 mV VIN eVIH (max) or VIL (min)

VOL Output LOW Voltage VCC b1890 VCC b1575 VCC b1890 VCC b1620 mV Loading with 50Xto VCC b2V

VOHC Output HIGH Voltage VCC b1095 VCC b1035 mV VIN eVIH (min) or VIL (max)

Corner Point High Loading with 50Xto VCC b2V

VOLC Output LOW Voltage VCC b1565 VCC b1610 mV

Corner Point High

VIH Input HIGH Voltage 2.0 5.0 2.0 5.0 V

VIL Input LOW Voltage 0 0.8 0 0.8 V

IIH Input HIGH Current 10 10 mAV

IN ea

2.7V

Breakdown Test 20 20 mAV

IN ea

5.5V

IIL Input LOW Current

Dnb0.8 b0.8 mA VIN ea

0.5V

Eb4.2 b4.2

VFCD Input Clamp b1.2 b1.2 V IIN eb

18 mA

Diode Voltage

ICC VCC Supply Current 29 69 29 69 mA Inputs Open

PCC AC Electrical Characteristics

VCC ea

5.0V g10%, GND e0V

Symbol Parameter TCeb

40§CT

25§CT

85§CUnits Conditions

Min Max Min Max Min Max

tPLH Propagation Delay 0.20 1.50 0.35 1.30 0.40 1.30 ns

Figures 1

and

tPHL Data to Output

tPLH Propagation Delay 0.35 1.60 0.45 1.40 0.50 1.40 ns

tPHL Enable to Output

tTLH Transition Time 0.35 1.70 0.35 1.70 0.35 1.70 ns

tTHL 20% to 80%, 80% to 20%

Note 1: The specified limits represent the ‘‘worst case’’ value for the parameter. Since these values normally occur at the temperature extremes, additional noise

immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to

guarantee operation under ‘‘worst case’’ conditions.

Military Version-Preliminary

TTL-to-ECL DC Electrical Characteristics

VEE eb

4.2V to b5.7V, VCC eVCCA eGND, TCeb

55§Ctoa

125§C, VTTL ea

4.5V to a5.5V

Symbol Parameter Min Max Units TCConditions Notes

VOH Output HIGH Voltage VCC b1025 VCC b870 mV 0§Cto

125§C

VCC b1085 VCC b870 mV b55§CV

IN eVIH (max) Loading with 1, 2, 3

VOL Output LOW Voltage VCC b1830 VCC b1620 mV 0§Cto or VIL (min) 50Xto VCC b2.0V

a125§C

VCC b1830 VCC b1555 mV b55§C

VOHC Output HIGH Voltage VCC b1035 mV 0§Cto

125§C

VCC b1085 mV b55§CV

IN eVIH (min) Loading with 1, 2, 3

VOLC Output LOW Voltage VCC b1610 mV 0§Cto or VIL (max) 50Xto VCC b2.0V

a125§C

VCC b1555 mV b55§C

VIH Input HIGH Voltage 2.0 V b55§Cto 1, 2, 3, 4

a125§C

VIL Input LOW Voltage 0.8 V b55§Cto 1, 2, 3, 4

a125§C

IIH Input HIGH Current 70 mAb55§Cto V

IN ea

2.7V 1, 2, 3

125§C

IIL Input LOW Current b1.0 mA b55§Cto V

IN ea

0.5V 1, 2, 3

a125§C

VFCD Input Clamp b1.2 V b55§Cto I

IN eb

18 mA 1, 2, 3

Diode Voltage a125§C

ICC VCC Supply Current 20 70 mA b55§Cto Inputs Open 1, 2, 3

a125§C

AC Electrical Characteristics VCC ea

5.0 g10%, GND e0V

Symbol Parameter Teb

55§CT

25§CT

125§CUnits Conditions Notes

Min Max Min Max Min Max

tPLH Propagation Delay 0.40 2.50 0.50 2.10 0.50 2.10 ns Figures 1, 2 1, 2, 3

tPHL Data and Enable to Output

tTLH Transition Time 0.30 2.00 0.30 2.00 0.30 2.00 ns Figures 1, 2 1, 2, 3

tTHL 20% to 80%, 80% to 20%

Note 1: F100K 300 Series cold temperature testing is performed by temperature soaking (to guarantee junction temperature equals b55§C), then testing

immediately without allowing for the junction temperature to stabilize due to heat dissipation after power-up. This provides ‘‘cold start’’ specs which can be

considered a worst case condition at cold termperatures.

Note 2: Screen tested 100% on each device at b55§C, a25§C and a125§C, Subgroups 1, 2, 3, 7 and 8.

Note 3: Sample tested (Method 5005, Table I) on each manufactured lot at b55§C, a25§C and a125§C, Subgroups A1, 2, 3, 7 and 8.

Note 4: Guaranteed by applying specified input condition and testing VOH/VOL.

Switching Waveforms

TL/F/10939–6

FIGURE 1. Propagation Delay and Transition Times

Test Circuit

TL/F/10939–7

FIGURE 2. AC Test Circuit

Notes:

VCC eVCCA ea

2V, GNDECL eGNDTTL e3.0V

VIH e0V, VIL eb

L1, L2 and L3 eequal length 50Ximpedance lines

RTe50Xterminator internal to scope

Decoupling 0.1 mF from GND to VCC,V

EE and VTTL

All unused outputs are loaded with 50Xto GND

CLeFixture and stray capacitance s3pF

Ordering Information

The device number is used to form part of a simplified purchasing code where a package type and temperature range are

defined as follows:

100391 D C QB

Device Number (Basic) Special Variations

QB eMilitary Grade Device with

Package Code Environmental and Burn-In

DeCeramic Dual-In-Line Processing

QePlastic-Leaded Chip Carrier (PCC)

PePlastic Dual-In-Line Temperature Range

SeSmall Outline (SOIC) C eCommercial (0§Ctoa

85§C)

IeIndustrial (b40§Ctoa

85§C)

PCC Only

MeMilitary (b55§Ctoa

125§C)

Physical Dimensions inches (millimeters)

24-Lead Small Outline Integrated Circuit (S)

NS Package Number M24B

24-Lead Plastic Dual-In-Line Package (P)

NS Package Number N24E

100391 Low Power Single Supply Hex TTL-to-ECL Translator

Physical Dimensions inches (millimeters) (Continued)

28-Lead Plastic Chip Carrier (Q)

NS Package Number V28A

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