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See Note A

See Note A

See Note B

B1-B8

Y9-Y13

PERI LOGIC OUT

C14-C17

HOST LOGIC IN

DIR

HD

A1-A8

A9-A13

PERI LOGIC IN

A14-A17

HOST LOGIC OUT

42

48

1

19

24

30

25

PMOS transistor is turned off when the associated driver is in the low state.

C. Active input detection circuit forces Y9-Y13 to the high state after power-on, until one of the A9-A13 goes high (see Figure 1).

See

Note C

SN74LVCE161284

19-BIT IEEE STD 1284 TRANSLATION TRANSCEIVER

WITH ERROR-FREE POWER UP

SCES541 – JANUARY 2004 – REVISED MARCH 2005

LOGIC DIAGRAM

3