Rainbow-electronics MAX1364 Manual do Utilizador descarregar pdf (Página 5)

MAX1363/MAX1364

4-Channel, 12-Bit System Monitors with Programmable

Trip Window and SMBus Alert Response

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

= 2.7V to 3.6V (MAX1363), V

= 4.5V to 5.5V (MAX1364), V

REF

= 2.048V (MAX1363), V

REF

= 4.096V (MAX1364), C

REF

0.1µF, f

SCL

= 1.7MHz, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Hold Time for START (S)

Condition

STA

0.6 µs

Low Period of the SCL Clock t

LOW

1.3 µs

High Period of the SCL Clock t

HIGH

0.6 µs

Setup Time for a Repeated

START Condition (Sr)

STA

0.6 µs

Data Hold Time t

DAT

0 900 ns

Data Setup Time t

DAT

100 ns

Rise Time of Both SDA and SCL

Signals, Receiving

Measured from 0.3V

to 0.7V

0 300 ns

Fall Time of SDA Transmitting

Measured from 0.3V

to 0.7V

DD 0

300 ns

Setup Time for STOP (P)

Condition

STO

0.6 µs

Capacitive Load for Each Bus

Line

400 pF

Pulse Width of Spike Suppressed 50 ns

TIMING CHARACTERISTICS FOR HIGH-SPEED MODE (C

= 400pF, Figures 1a, 2) (Note 12)

Serial Clock Frequency f

SCLH

(Note 13) 1.7 MHz

Hold Time, Repeated START

Condition (Sr)

STA

160 ns

Low Period of the SCL Clock t

LOW

(Note 13) 320 ns

High Period of the SCL Clock t

HIGH

120 ns

Setup Time for a Repeated

START Condition (Sr)

STA

160 ns

Data Hold Time t

DAT

(Note 14) 0 150 ns

Data Setup Time t

DAT

10 ns

Rise Time of SCL Signal, Current

Source Enabled

RCL

Measured from 0.3V

to 0.7V

20 80 ns

Rise Time of SCL Signal After

Acknowledge Bit

RCL1

Measured from 0.3V

to 0.7V

20 160 ns

Fall Time of SCL Signal t

FCL

Measured from 0.3V

to 0.7V

20 80 ns

Rise Time of SDA Signal t

RDA

Measured from 0.3V

to 0.7V

20 160 ns

Fall Time of SDA Signal t

FDA

Measured from 0.3V

to 0.7V

20 160 ns

Setup Time for STOP (P)

Condition

STO

160 ns

Capacitive Load for Each Bus

Line

(Notes 13, 14) 400 pF

Pulse Width of Spike Suppressed 0 10 ns

1 2 3 4 5 6 7 8 9 10 ... 23 24

MAX1363/MAX1364 1

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