SX1502EVK(2008) データシートの表示（PDF） - Semtech Corporation

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SX1502EVK
(Rev.:2008)

4/8/16 Channel Low Voltage GPIO with NINT and NRESET

Semtech Corporation 

SX1501/SX1502/SX1503

4/8/16 Channel Low Voltage GPIO

ADVANCED COMMUNICATIONS & SENSING

Symbol Description

Conditions

Min

Typ

Max Unit

tIR Interrupt reset timing

From RegInterruptSource

clearing

-

-

2

µs

NRESET (Input/Output)

VOL Low level output voltage

-

-

-

0.3 V

IOLM Low level output sink current

VDDM >= 2V

VDDM < 2V

-

-

-

-

12

6

mA

VIHMR High level input voltage

-

0.7*

VDDM

-

5.5 V

VILM Low level input voltage

-

-0.4

-

0.3*

VDDM

V

VHYSM Hysteresis of Schmitt trigger

-

-

0.1*

VDDM

-

V

ILEAK Input leakage current

-

-1.5

-

1.5 µA

CI Input capacitance

-

-

-

10 pF

VPOR Power-On-Reset voltage

Cf. Figure 7

0.7

-

0.9 V

VDROPH High brown-out voltage

Cf. Figure 7

-

VDDM-1

-

V

VDROPL Low brown-out voltage

Cf. Figure 7

-

0.2

-

V

tRESET Reset time

tPULSE Reset pulse from host uC

Cf. Figure 7

Cf. Figure 7

0.6

-

300

-

7 ms

-

ns

ADDR (Input)

VIHMA High level input voltage

-

0.7*

VDDM

-

VDDM

+0.3

V

VILM Low level input voltage

-

-0.4

-

0.3*

VDDM

V

VHYSM Hysteresis of Schmitt trigger

-

-

0.1*

VDDM

-

V

ILEAK Input leakage current

-

-1.5

-

1.5 µA

CI Input capacitance

-

-

-

10 pF

SCL (Input) and SDA (Input/Output) (3)

Interface complies with slave F/S mode I2C interface as described by Philips I2C specification version 2.1

dated January, 2000. Please refer to that document for more detailed I2C specifications.

VOL

IOLM

VIHMR

VILM

fSCL

tHD;STA

tLOW

tHIGH

tSU;STA

tHD;DAT

tSU;DAT

tr

Low level output voltage

Low level output sink current

High level input voltage

Low level input voltage

SCL clock frequency

Hold time (repeated) START

condition

LOW period of the SCL clock

HIGH period of the SCL clock

Set-up time for a repeated

START condition

Data hold time

Data set-up time

Rise time of both SDA and

SCL signals

Rev 7 – 2nd Oct. 2008

-

VDDM >= 2V

VDDM < 2V

-

-

-

-

-

VDDM >= 1.3V

VDDM < 1.3V

-

-

-

-

8

-

-

-

-

-

-

0.7*

VDDM

-

-0.4

-

0

-

0.6

-

1.3

-

0.6

-

1

-

0.6

-

0(4)

-

100(6)

-

20+0.1Cb(7)

-

0.3 V

12

6

mA

5.5 V

0.3*

VDDM

V

400 kHz

-

µs

-

µs

-

-

µs

-

µs

0.9(5) µs

-

300 ns

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