74LVC2T45GF datasheet(15/33 Pages) NEXPERIA

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Nexperia

74LVC2T45; 74LVCH2T45

Dual supply translating transceiver; 3-state

11.1. Waveforms and test circuit

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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. 5. The data input (A, B) to output (B, A) propagation delay times

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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

Measurement points are given in Table 14.

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

Fig. 6. Enable and disable times

Table 14. Measurement points

Supply voltage

Input [1]

Output [2]

VCC(A), VCC(B)

1.2 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 + 0.15 V

VOH - 0.15 V

3.0 V to 5.5 V

0.5VCCI

0.5VCCO

VOL + 0.3 V

VOH - 0.3 V

[1] VCCI is the supply voltage associated with the data input port.

[2] VCCO is the supply voltage associated with the output port.

74LVC_LVCH2T45

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Product data sheet

Rev. 12 — 1 March 2023

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