TS68C429AVR datasheet(8/43 Pages) ATMEL

No de pièce	TS68C429AVR

Description	CMOS ARINC 429 Multichannel Receiver/ Transmitter MRT

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Fabricant	ATMEL [ATMEL Corporation]

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8

TS68C429A

2120A–HIREL–08/02

This device contains protective circuitry against damage due to high static voltages or

electrical fields: however, it is advised that normal precautions be taken to avoid applica-

tion of any voltages higher than maximum-rated voltages to this high-impedance circuit.

Reliability of operation is enhanced if unused inputs are tied to an appropriate logic volt-

age level (e.g., either GND or VCC).

Figure 3. Clock Input Timing Diagram

Note:

Timing measurements are referenced to and from a low of 0.8-volt and a high voltage of

2.25 volts, unless otherwise noted. The voltage swing through this range should start

outside and pass through the range such that the rise or fall will be linear between

0.8-volt and 2.25 volts.

Unless otherwise stated, all voltages are referenced to the reference terminal.

Table 2. Recommended Condition of Use

Symbol

Parameter

Test conditions

Min

Max

Units

VCC

Supply Voltage

4.5

5.5

V

IL

Low Level Input Voltage

-0.5

0.8

V

IH

High Level Input Voltage

2.25

5.8

V

Tcase

Operating Temperature

M suffix

-55

+125

°C

V suffix

-40

+85

°C

C

L

Output Loading Capacitance

130

pF

t

r(c)

Clock Rise Time (See Figure 3)

5

ns

t

f(c)

Clock Fall Time (See Figure 3)

5

ns

f

c

Clock System Frequency

(See Figure 3)

0.5

20

MHz

Table 3. Thermal Characteristics

Package

Symbol

Parameter

Value

Unit

PGA 68

θ

J-A

Thermal Resistance Junction-to-ambient

28

°C/W

θ

J-C

Thermal Resistance Junction-to-case

2

°C/W

CQFP 132

θ

J-A

Thermal Resistance Junction-to-ambient

27

°C/W

θ

J-C

Thermal Resistance Junction-to-case

3

°C/W

0.8V

2.25V

tcyc

tCL

tCH

tCF

tCR

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