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74LVC2952AD,118

Octal registered transceiver with 5 V tolerant inputs/outputs; 3-state

NXP Semiconductors. 

Philips Semiconductors

12. Waveforms

74LVC2952A

Octal registered transceiver

VI

CPxx input

GND

VOH

An, Bn output

VOL

1/ fmax

VM

tW

t PHL

VM

t PLH

001aab028

Fig 5.

Measurement points are given in Table 10.

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

Clock input (CPBA, CPAB) to output (An, Bn) propagation delays, the clock pulse

width and the maximum clock pulse frequency.

Table 10: Measurement points

Supply voltage

VCC

< 2.7 V

≥ 2.7 V

Input

VM

0.5 × VCC

1.5 V

Output

VM

0.5 × VCC

1.5 V

VI

An, Bn, CExx input

GND

VI

CPxx input

GND

VM

th

t su

VM

th

t su

001aab029

Measurement points are given in Table 11.

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

The shaded areas indicate when the input is permitted to change for predicable output

performance.

Fig 6. Set-up and hold times for the An, Bn and CExx inputs.

Table 11: Measurement points

Supply voltage

VCC

< 2.7 V

≥ 2.7 V

Input

VM

0.5 × VCC

1.5 V

Output

VM

0.5 × VCC

1.5 V

9397 750 13251

Product data sheet

Rev. 02 — 29 June 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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