DP8482A datasheet(2/6 Pages) NSC

2 / 6 page

Absolute Maximum Ratings (Note 1)

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VEE Supply Voltage

VCC Supply Voltage

Input Voltage

GND to VEE

Output Voltage

55V

Maximum Power Dissipation at 25 C

Molded Package

1476 mW

Storage Temperature

65 Cto a150 C

Derate molded package 118 mW C above 25 C

Recommended Operating Conditions

VEE Supply Voltage

45Vg7%

VCC Supply Voltage

50Vg10%

TA Ambient Temperature

0 Cto85 C

Electrical Characteristics (TTL Logic) (Notes 2 3 and 4)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VOL

Output Low Voltage

IOLe12 mA

VOH

Output High Voltage

IOHeb10 mA

VCCb2V

IAV

Output Low Drive Current

Force 25V

150

IOS

Output High Drive Current

Force 0V

150

350

IOZ

TRI-STATE Output Current

ICC

Supply Current

Electrical Characteristics (ECL Logic) (Notes 2 and 3)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VIL

Input Low Voltage

VEEeb45V

1810

1475

VIH

Input High Voltage

VEEeb45V

1165

880

IIL

Input Low Current

VIN e VIL Max

100

IIH

Input High Current

VIN e VIH Max

750

IEE

Supply Current

Switching Characteristics (Notes 2 and 5)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

tPD1

Strobe to Output Delay

CLe50 pF

tPD2

Data to Output Delay

CLe50 pF

Data Set-Up Time

(Note 6)

Data Hold Time

(Note 6)

tPW

Strobe Pulse Width

(Note 6)

tZE

Delay from Chip Select to

CLe50 pF

Active State from Hi-Z State

tEZ

Delay from Chip Select to Hi-Z

CLe50 pF

State from Active State

Note 1

‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the device

should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation

Note 2

Unless otherwise specified minmax limits apply across the 0 Cto85 C ambient temperature range in still air and across the specified supply variations

All typical values are for TAe25 C and nominal supply Maximum propagation delays are specified with all outputs switching simultaneously

Note 3

All currents into device pins are shown as positive all currents out of device pins are shown as negative All voltages are referenced to ground unless

otherwise specified

Note 4

When DC testing IAV or IOS only one output should be tested at a time and the current limited to 120 mA max

Note 5

Unless otherwise specified all AC measurements are referenced from the 50% level of the ECL input to the 08V level on negative transitions or the 24V

level on positive transitions of the output ECL input rise and fall times are 07 ns g 01 ns from 20% to 80%

Note 6

Caution should be used when latching data while the outputs are switching TTL outputs generate severe ground noise when switching This noise can be

sufficient to cause the ECL latch to lose data Board mounting and good supply decoupling are desirable The worst case conditions are with all outputs switching

low simultaneously the maximum capacitive loading on the outputs and the maximum VCC supply voltage applied

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