6

MILITARYANDINDUSTRIALTEMPERATURERANGES

IDT54/74FCT163T/AT/CT

FASTCMOSSYNCHRONOUSPRESETTABLEBINARYCOUNTER

Pulse

Generator

D.U.T.

50pF

500

Ω

500

Ω

7.0V

3V

1.5V

0V

3V

1.5V

0V

3V

1.5V

0V

3V

1.5V

0V

DATA

IN PU T

TIM IN G

IN PU T

ASYNCHRON OUS C ONTROL

PRES ET

CLEAR

ETC.

SYNC HRO N OU S CON TRO L

HIGH-LOW -HIGH

PULSE

LO W -H IGH -LOW

PULSE

1.5V

1.5V

SAM E PHASE

IN PU T TR ANSITION

3V

1.5V

0V

1.5V

OU TPUT

OPPOSITE P HASE

IN PU T TR ANSITION

3V

1.5V

0V

CO NTR OL

IN PU T

3V

1.5V

0V

3.5V

0V

OU TPUT

NO RM A LLY

LO W

OU TPUT

NO RM A LLY

HIGH

SW ITC H

CLOSE D

SW ITC H

OPEN

0.3V

0.3V

3.5V

0V

1.5V

1.5V

ENAB LE

DISA BLE

PRES ET

CLEAR

CLOC K ENABLE

ETC.

Octal lin k

Octal lin k

Octal lin k

Octal lin k

Octal lin k

TEST CIRCUITS AND WAVEFORMS

PROPAGATION DELAY

TEST CIRCUITS FOR ALL OUTPUTS

ENABLE AND DISABLE TIMES

SET-UP, HOLD, AND RELEASE TIMES

PULSE WIDTH

SWITCH POSITION

Test

Switch

Open Drain

Disable Low

Closed

Enable Low

All Other Tests

Open

8-link

DEFINITIONS:

Generator.

NOTES:

1. Diagram shown for input Control Enable-LOW and input Control Disable-

HIGH

2. Pulse Generator for All Pulses: Rate