T83C51SND1-ROTIL datasheet(42/60 Pages) ATMEL

No. de pieza	T83C51SND1-ROTIL

Descripción Electrónicos	Single Chip Microcontroller with MP3 Decoder and Man Machine Interface

PDF	60 Pages

Scroll/Zoom	100%

Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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42 / 60 page

T8xC51SND1

Rev. D – 15-Nov-01

12.5 AC Characteristics - External IDE 16-bit Bus Cycles

12.6.1 Definition of symbols

Table 47. External IDE 16-bit Bus Cycles Timing Symbol Definitions

12.7.2 Timings

Test conditions: capacitive load on all pins= 50 pF.

Table 48. External IDE 16-bit Bus Cycle - Data Read AC Timings

VDD= 2.7 to 3.3 V, TA= -40 to +85

°C

Signals

Conditions

Address

High

Data In

Low

ALE

Valid

Data Out

No Longer Valid

RD#

Floating

WWR#

Symbo

Parameter

Variable Clock

Standard Mode

Variable Clock

X2 Mode

Unit

Min

Max

Min

Max

TCLCL

Clock Period

TLHLL

ALE Pulse Width

2·TCLCL-15

TCLCL-15

TAVLL

Address Valid to ALE Low

TCLCL-20

0.5·TCLCL-20

TLLAX

Address hold after ALE Low

TCLCL-20

0.5·TCLCL-20

TLLRL

ALE Low to RD# Low

3·TCLCL-30

1.5·TCLCL-30

TRLRH RD# Pulse Width

6·TCLCL-25

3·TCLCL-25

TRHLH RD# high to ALE High

TCLCL-20

TCLCL+20

0.5·TCLCL-20

0.5·TCLCL+20

TAVDV Address Valid to Valid Data In

9·TCLCL-65

4.5·TCLCL-65

TAVRL

Address Valid to RD# Low

4·TCLCL-30

2·TCLCL-30

TRLDV

RD# Low to Valid Data

5·TCLCL-30

2.5·TCLCL-30

TRLAZ

RD# Low to Address Float

TRHDX Data Hold After RD# High

RHDZ

Instruction Float After RD#

High

2·T

CLCL-25

T83C51SND1-ROTIL Datasheet(PDF) 42 Page - ATMEL Corporation

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