74LVC244A Просмотр технического описания (PDF) - ON Semiconductor

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производитель

74LVC244A

Low-Voltage CMOS Octal Buffer

ON Semiconductor 

1Dn, 2Dn

1On, 2On

74LVC244A

VCC

Vmi

Vmi

tPLH

Vmo

0V

tPHL

VOH

Vmo

VOL

WAVEFORM 1 − PROPAGATION DELAYS

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

1OE, 2OE

1On, 2On

1On, 2On

Vmi

Vmi

tPZH

tPHZ

Vmo

tPZL

tPLZ

Vmo

VCC

0V

VCC

VOH - 0.3 V

≈0V

≈ 3.0 V

VOL + 0.3 V

GND

WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

Figure 3. AC Waveforms

Symbol

Vmi

Vmo

VHZ

VLZ

3.3 V ± 0.3 V

1.5 V

1.5 V

VOL + 0.3 V

VOH − 0.3 V

VCC

2.7 V

1.5 V

1.5 V

VOL + 0.3 V

VOH − 0.3 V

VCC < 2.7 V

VCC/2

VCC/2

VOL + 0.15 V

VOH − 015 V

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