SN74LVCZ161284AGR 参数 Datasheet PDF下载

SN74LVCZ161284A

19-BIT IEEE STD 1284 TRANSLATION TRANSCEIVER

WITH ERROR-FREE POWER UP

SCES358B – SEPTEMBER 2001 – REVISED MAY 2005

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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

The power-on reset (POR) ensures that the Y outputs (Y9–Y13) stay in the high state after power on until an

associated input (A9–A13) goes high. When an associated input goes high, all Y outputs are activated, and

noninverting signals of the associated inputs are driven through Y outputs. This special feature prevents printer

system errors caused by deasserting the BUSY signal in the cable at power on.

FUNCTION TABLE

INPUTS

DIR

L

L

H

H

HD

L

H

L

H

OUTPUT

Open drain

Totem pole

Totem pole

Open drain

Totem pole

Totem pole

MODE

A9–A13 to Y9–Y13 and PERI LOGIC IN to PERI LOGIC OUT

B1–B8 to A1–A8 and C14–C17 to A14–A17

B1–B8 to A1–A8, A9–A13 to Y9–Y13, PERI LOGIC IN to PERI LOGIC OUT, and C14–C17 to A14–A17

A1–A8 to B1–B8, A9–A13 to Y9–Y13, and PERI LOGIC IN to PERI LOGIC OUT

C14–C17 to A14–A17

A1–A8 to B1–B8, A9–A13 to Y9–Y13, C14–C17 to A14–A17, and PERI LOGIC IN to PERI LOGIC OUT

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