4

X28HT512

D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified.)

Limits

Symbol

Parameter

Min.

Max.

Units

Test Conditions

50

mA

(TTL Inputs)

All I/O’s = Open, Address Inputs =

.4V/2.4V Levels @ f = 5MHz

3

mA

(TTL Inputs)

Input Leakage Current

20

Output Leakage Current

20

Input LOW Voltage

–1

0.6

V

Input HIGH Voltage

2.2

V

Output LOW Voltage

0.5

V

Output HIGH Voltage

2.6

V

Back Bias Voltage

200

6614 PGM T04.2

ABSOLUTE MAXIMUM RATINGS*

Temperature under Bias

X28HT512 ................................. –40

°C to +175°C

Voltage on any Pin with

D.C. Output Current ............................................. 5mA

Lead Temperature

(Soldering, 10 seconds) .............................. 300

°C

*COMMENT

Stresses above those listed under “Absolute Maximum

Ratings” may cause permanent damage to the device.

This is a stress rating only and the functional operation of

the device at these or any other conditions above those

indicated in the operational sections of this specification is

not implied. Exposure to absolute maximum rating condi-

tions for extended periods may affect device reliability.

RECOMMEND OPERATING CONDITIONS

Temperature

Min.

Max.

High Temp

–40

°C

+175

°C

6614 PGM T02.1

Supply Voltage

Limits

X28HT512

5V

±5%

–3V

±10%

6614 PGM T03.1