74LVC2245A Просмотр технического описания (PDF) - NXP Semiconductors.

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74LVC2245A

Octal transceiver with direction pin, 30 Ω series termination resistors; 5 V tolerant input/output; 3-state

NXP Semiconductors. 

NXP Semiconductors

11. AC waveforms

74LVC2245A

Octal transceiver with direction pin, 30  series termination resistors

VI

An, Bn input

VM

VM

GND

VOH

tPLH

tPHL

Bn, An output

VM

VOL

VM

mna176

Fig 5.

VM = 1.5 V at VCC  2.7 V.

VM = 0.5  VCC at VCC < 2.7 V.

VOL and VOH are typical output voltage levels that occur with the output load.

The inputs An, Bn to outputs Bn, An propagation delays

VI

nOE input

GND

VCC

output

LOW-to-OFF

OFF-to-LOW

VOL

VOH

output

HIGH-to-OFF

OFF-to-HIGH

GND

VM

tPLZ

tPZL

tPHZ

VX

VY

VM

tPZH

VM

outputs

enabled

outputs

disabled

outputs

enabled

mna362

Fig 6.

VM = 1.5 V at VCC  2.7 V.

VM = 0.5  VCC at VCC < 2.7 V.

VX = VOL + 0.3 V at VCC  2.7 V;

VX = VOL + 0.15 V at VCC < 2.7 V.

VY = VOH  0.3 V at VCC  2.7 V;

VY = VOH  0.15 V at VCC < 2.7 V.

VOL and VOH are typical output voltage levels that occur with the output load.

3-state enable and disable times

74LVC2245A

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 5 — 4 November 2011

© NXP B.V. 2011. All rights reserved.

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