100398QI datasheet(5/13 Pages) FAIRCHILD

Part #	100398QI

Description	Quad Differential ECL/TTL Translating Transceiver with Latch

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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Commercial Version (Continued)

ECL-to-TTL DC Electrical Characteristics (Note 10)

VEE = −4.2V to −5.7V, GND = 0V, TC = 0°C to +85°C, CL = 50 pF, VTTL = +4.5V to +5.5V

Note 10: 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 cho-

sen to guarantee operation under “worst case” conditions.

DIP and PCC TTL-to-ECL AC Electrical Characteristics

VEE = −4.2V to −5.7V, VTTL = +4.5V to +5.5V

Symbol

Parameter

Min

Typ

Max

Units

Conditions

VOH

Output HIGH Voltage

2.7

3.1

V

IOH = −3 mA, VTTL = 4.75V

2.4

2.9

V

IOH = −3 mA, VTTL = 4.50V

VOL

Output LOW Voltage

0.3

0.5

V

IOL = 24 mA, VTTL = 4.50V

VIH

Input HIGH Voltage

−1165

−870

mV

Guaranteed HIGH Signal for All Inputs

VIL

Input LOW Voltage

−1830

−1475

mV

Guaranteed LOW Signal for All Inputs

VDIFF

Input Voltage Differential

150

mV

Required for Full Output Swing

VCM

Common Mode Voltage

GNDECL

− 2.0

GNDECL

− 0.5

V

IIH

Input HIGH Current

30

µAV

IN = VIH (Max)

IIL

Input LOW Current

0.50

µAV

IN = VIL (Min)

IOZHT

3-STATE Current Output High

70

µAV

OUT = +2.7V

IOZLT

3-STATE Current Output Low

−650

µAV

OUT = +0.5V

IOS

Output Short-Circuit Current

−100

−225

mA

VOUT = 0.0V, VTTL = +5.5V

ICEX

Output HIGH Leakage Current

50

µAV

OUT = 5.5V

IZZ

Bus Drainage Test

500

µAV

OUT = 5.25V

ITTL

VTTL Supply Current

39

mA

TTL Outputs LOW

27

mA

TTL Outputs HIGH

39

mA

TTL Outputs in 3-STATE

Symbol

Parameter

TC = 0°CTC = 25°CTC = 85°C

Units

Conditions

Min

Max

Min

Max

Min

Max

fMAX

Toggle Frequency

180

MHz

tPLH

Tn to En, En

0.90

2.10

0.80

2.20

0.70

2.50

ns

Figures 1, 3

tPHL

(Transparent)

tPLH

LE to En, En

1.40

2.70

1.50

2.70

1.80

3.10

ns

Figures 1, 3

tPHL

tPZH

OE to En, En

2.90

8.00

2.80

6.90

2.80

5.80

ns

Figures 1, 3

(Cutoff to HIGH)

tPHZ

OE to En, En

1.30

2.70

1.40

2.90

1.70

3.40

ns

Figures 1, 3

(HIGH to Cutoff)

tPHZ

DIR to En, En

1.30

2.70

1.40

2.90

1.80

3.50

ns

Figures 1, 3

(HIGH to Cutoff)

tS

Tn to LE

0.70

ns

Figures 1, 3

tH

Tn to LE

0.90

0.80

0.70

ns

Figures 1, 3

tTLH

Transition Time

0.45

1.50

0.45

1.50

0.45

1.50

ns

Figures 1, 3

tTHL

20% to 80%, 80% to 20%

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