74GTL1655TTR Ver la hoja de datos (PDF) - STMicroelectronics

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74GTL1655TTR

16 BIT LVTTL TO GTL/GTL + UNIVERSAL BUS TRANSCEIVERS WITH LIVE INSERTION

STMicroelectronics 

74GTL1655

TEST CIRCUIT FOR "A" OUTPUTS

Test

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 50pF or equivalent (includes jig and probe capacitance)

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

tr=tf <=2.5ns

TEST CIRCUIT FOR "B" OUTPUTS

Switch

Open

6V

GND

CL = 30pF or equivalent (includes jig and probe capacitance)

RL = R1 = 12.5Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

tr=tf <=2.5ns

10/14

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