Rainbow-electronics AT77C101B FingerChip™ Manual do Utilizador descarregar pdf (Página 12)

12

AT77C101B

2150A–BIOM–02/02

Figure 6. Output Enable

Figure 7. No Data Change

Note: OE must not change during TNOOE after the PCLK falls. This is to ensure that the output drivers of the data are not driving cur-

rent, to reduce the noise level on the power supply.

Hi-Z

Hi-Z

Output Enable

OE

Data output

Do0-3, De0 -3

Data output

t

ZDATA

t

DATAZ

PCLK

t

NOOE

OE

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 22 23

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