P8044AH-R0117 datasheet(51/65 Pages) INNOVASIC

部件名	P8044AH-R0117

功能描述	SDLC Communications Controller

PDF	65 Pages

Scroll/Zoom	100%

制造商	INNOVASIC [InnovASIC, Inc]

网页	http://www.innovasic.com

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51 / 65 page

IA8044/IA8344

Data Sheet

SDLC Communications Controller

March 30, 2010

IA211010112-04

http://www.Innovasic.com

UNCONTROLLED WHEN PRINTED OR COPIED

Customer Support:

Page 51 of 65

1-888-824-4184

TRLAZ

RDn Low to Address Float

–

TWHLH

RDn or WRn High to ALE High

TCLCL

Table 50. Serial Interface Characteristics

Symbol

Parameter

Min

Max

Unit

TDCY

Data Clock

420

–

TDCL

Data Clock Low

184

–

TDCH

Data Clock High

184

–

tTD

Transmit Data Delay

–

125

tDSS

Data Setup Time

–

tDHS

Data Hold Time

–

Table 51. External Clock Drive Characteristics

Symbol

Parameter

Min

Max

Unit

TCLCL

Oscillator Period

–

5.1

Memory Access Waveforms

The IA8044/IA8344 program memory read cycle, data memory read cycle, and data memory

write cycle are presented in Figures 13 through 15, respectively.

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