74AVC2T45DP datasheet(12/27 Pages) NXP

12 / 27 page

74AVC2T45

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Product data sheet

Rev. 7 — 8 February 2013

12 of 27

NXP Semiconductors

74AVC2T45

Dual-bit, dual-supply voltage level translator/transceiver; 3-state

12. Waveforms

[1]

VCCI is the supply voltage associated with the data input port.

[2]

VCCO is the supply voltage associated with the output port.

Measurement points are given in Table 14.

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

Fig 6.

The data input (nA, nB) to output (nB, nA) propagation delay times

001aak114

nA, nB input

nB, nA output

tPLH

tPHL

GND

VOH

VOL

Measurement points are given in Table 14.

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

Fig 7.

Enable and disable times

001aae968

tPZL

tPZH

tPHZ

tPLZ

GND

VCCO

VOL

VOH

outputs

disabled

outputs

enabled

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

DIR input

Table 14.

Measurement points

Supply voltage

Input[1]

Output[2]

VCC(A), VCC(B)

1.1 V to 1.6 V

0.5VCCI

0.5VCCO

VOL +0.1 V

VOH  0.1 V

1.65 V to 2.7 V

0.5VCCI

0.5VCCO

VOL +0.15V

VOH  0.15 V

3.0 V to 3.6 V

0.5VCCI

0.5VCCO

VOL +0.3 V

VOH  0.3 V

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