9397 750 14402

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

Product data sheet

Rev. 03 — 12 January 2005

8 of 21

Philips Semiconductors

74LVT16652A

3.3 V 16-bit bus transceiver/register; 3-state

7.2 Bus management function

Figure 5 demonstrates the four fundamental bus management functions that can be

performed with the 74LVT16652A. The select pins determine whether data is stored or

transferred through the device in real time. The output enable pins determine the direction

of the data flow.

a. Real-time bus transfer bus B to bus A

b. Real-time bus transfer bus A to bus B

c. Storage from bus A only, bus B only, or bus A plus

bus B

d. Transfer stored data to bus A or bus B

Fig 5.

Example of bus management functions

001aac348

nCPAB

X

AB

nCPBA

X

nOEBA

L

nSAB

X

nSBA

L

nOEAB

L

001aac349

nCPAB

X

AB

nCPBA

X

nSAB

L

nSBA

X

nOEBA

H

nOEAB

H

001aac350

nCPAB

X

AB

nCPBA

X

nOEBA

H

X

H

nSAB

X

X

X

nSBA

X

X

X

nOEAB

X

L

L

001aac351

nCPAB

H/L

AB

nCPBA

H/L

nSAB

H

nSBA

H

nOEBA

L

nOEAB

H