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Revision 1.03

5 - 20

AS1539/AS1541

Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s

Timing Characteristics

levels.

CMOS Digital I/O

Input High Logic Level

x 0.7

+ 0.5

V

Input Low Logic Level

-0.3

x 0.3

V

Output Low Logic Level

3mA sink current

0.4

V

Input High Leakage Current

1µA

Input Low Leakage Current

-1

µA

Data Format

Straight binary

Power Supply Requirements

Power Supply Voltage

Specified performance

2.7

5.25

V

Analog Current in Static Mode,

3.6V

PD = 00 Full Power-Down

0.04

1.2

µA

PD = 01 Internal Ref. OFF, ADC ON

400

500

PD = 10 Internal Ref. ON, ADC OFF

500

600

PD = 11 Internal Ref. ON, ADC ON

800

900

Analog Current in Static Mode,

5.25V

PD = 00 Full Power-Down

0.04

1.5

µA

PD = 01 Internal Ref. OFF, ADC ON

450

550

PD = 10 Internal Ref. ON, ADC OFF

550

650

PD = 11 Internal Ref. ON, ADC ON

850

950

Quiescent Current at Full

Speed, 3.6V

PD = 01 Internal Ref. OFF, ADC ON

500

600

µA

PD = 11 Internal Ref. ON, ADC ON

850

950

Quiescent Current at Full

Speed, 5.25V

PD = 01 Internal Ref. OFF, ADC ON

650

800

µA

PD = 11 Internal Ref. ON, ADC ON

915

1150

1. Guaranteed by design and characterized on sample base.

2. THD measure out to 5th harmonic.

Table 4. Timing Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

SCL Frequency

0.1

3.4

MHz

Bus Free Time Between

STOP and START Conditions

1.3

µs

Hold Time for Repeated

START Condition

160

ns

SCL Low Period

50

75

ns

SCL High Period

50

75

ns

Setup Time for Repeated

START Condition

100

ns

Data Setup Time

10

ns

Data Hold Time

70

ns

1

SCL Rise Time

10

40

ns

1

SCL Rise Time after

Repeated START Condition

and After an ACK Bit

10

80

ns

Table 3. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit