74LVC244AMTR Просмотр технического описания (PDF) - STMicroelectronics

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Компоненты Описание

производитель

74LVC244AMTR

LOW VOLTAGE CMOS QUAD BUS BUFFERS (3-STATE) HIGH PERFORMANCE

STMicroelectronics 

TEST CIRCUIT

74LVC244A

RT = ZOUT of pulse generator (typically 50Ω)

TEST CIRCUIT AND WAVEFORM SYMBOL VALUE

Symbol

CL

RL = R1

VS

VIH

VM

VOH

VX

VY

tr = tr

1.65 to 1.95V

30pF

1000Ω

2 x VCC

VCC

VCC/2

VCC

VOL + 0.15V

VOH - 0.15V

<2.0ns

VCC

2.3 to 2.7V

30pF

500Ω

2 x VCC

VCC

VCC/2

VCC

VOL + 0.15V

VOH - 0.15V

<2.0ns

2.7V

50pF

500Ω

6V

2.7V

1.5V

3.0V

VOL + 0.3V

VOH - 0.3V

<2.5ns

3.0 to 3.6V

50pF

500Ω

6V

2.7V

1.5V

3.0V

VOL + 0.3V

VOH - 0.3V

<2.5ns

5/9

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