HCS245MS

FN2468 Rev 1.00

Page 5 of 8

December 1992

AC Timing Diagrams

AC Load Circuit

TABLE 8. STATIC BURN-IN AND DYNAMIC BURN-IN TEST CONNECTIONS

OPEN

GROUND

1/2 VCC = 3V

 0.5V

VCC = 6V

 0.5V

OSCILLATOR

50kHz

25kHz

STATIC BURN-IN I TEST CONNECTIONS (Note 1)

2 - 9

1, 10 - 19

-

20

-

-

STATIC BURN-IN II TEST CONNECTIONS (Note 1)

-

10

-

1 - 9, 11 - 20

-

-

DYNAMIC BURN-IN TEST CONNECTIONS (Note 2)

-

10

11 - 18

1, 20

2 - 9

19

NOTES:

1. Each pin except VCC and GND will have a resistor of 10K

  5% for static burn-in.

2. Each pin except VCC and GND will have a resistor of 680

  5% for dynamic burn-in.

TABLE 9. IRRADIATION TEST CONNECTIONS

OPEN

GROUND

VCC = 5V

 0.5V

-

10

1 - 9, 11 - 20

NOTE: Each pin except VCC and GND will have a resistor of 47K

  5% for irradiation testing. Group E, Sub-

group 2, sample size is 4 dice/wafer 0 failures.

AC VOLTAGE LEVELS

PARAMETER

HCS

UNITS

VCC

4.50

V

VIH

4.50

V

VS

2.25

V

VIL

0

V

GND

0

V

VS

INPUT

OUTPUT

OUTPUT

TTHL

80%

20%

80%

20%

VIH

VIL

VOH

VOL

VOH

VOL

TPLH

TPHL

VS

TTLH

DUT

TEST

CL

RL

POINT

CL = 50pF

RL = 500

