SCC68692 datasheet(22/30 Pages) PHILIPS

Part #	SCC68692

Description	Dual asynchronous receiver/transmitter DUART

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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22 / 30 page

Philips Semiconductors

Product specification

SCC68692

Dual asynchronous receiver/transmitter (DUART)

1998 Sep 04

tPS

tPH

tPD

CSN

IP0–IP5

CSN

OP0–OP7

OLD DATA

NEW DATA

SD00150

Figure 7. Port Timing

NOTES:

1. INTRN or OP3 – OP7 when used as interrupt outputs.

2. The test for open-drain outputs is intended to guarantee switching of the output transistor. Measurement of this response is referenced from themidpoint of the switching signal, VM, to a

point 0.5V above VOL. This point represents noise margin that assures true switching has occurred. Beyond this level, the effects of external circuitry and test environment are pronounced

and can greatly affect the resultant measurement.

VOL +0.5V

VOL

RDN

WRN

INTERRUPT1

OUTPUT

tIR

SD00090

Figure 8. Interrupt Timing

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