MAX7359ETG+ datasheet(3/22 Pages) MAXIM

Part #	MAX7359ETG+

Description	2-Wire Interfaced Low-EMI Key Switch Controller/GPO

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Manufacturer	MAXIM [Maxim Integrated Products]

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2-Wire Interfaced Low-EMI

Key Switch Controller/GPO

_______________________________________________________________________________________

3

I2C TIMING CHARACTERISTICS

(VCC = 1.62V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 2.5V, TA = +25°C.) (Notes 1, 2) (Figure 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Capacitance

(SCL, SDA, AD0)

CIN

(Notes 3, 4)

10

pF

SCL Serial-Clock Frequency

fSCL

Bus timeout disabled

0

400

kHz

Bus Free Time Between a STOP

and a START Condition

tBUF

1.3

µs

Hold Time (Repeated) START

Condition

tHD, STA

0.6

µs

Repeated START Condition

Setup Time

tSU, STA

0.6

µs

STOP Condition Setup Time

tSU, STO

0.6

µs

Data Hold Time

tHD, DAT

(Note 5)

0.9

µs

Data Setup Time

tSU, DAT

100

ns

SCL Clock Low Period

tLOW

1.3

µs

SCL Clock High Period

tHIGH

0.7

µs

Rise Time of Both SDA and SCL

Signals, Receiving

tR

(Notes 3, 4)

20 +

0.1Cb

300

ns

Fall Time of Both SDA and SCL

Signals, Receiving

tF

(Notes 3, 4)

20 +

0.1Cb

300

ns

Fall Time of SDA Transmitting

tF.TX

(Notes 3, 6)

20 +

0.1Cb

250

ns

Pulse Width of Spike Suppressed

tSP

(Notes 3, 7)

50

ns

Capacitive Load for Each Bus Line

Cb

(Note 3)

400

pF

Note 1: All parameters are tested at TA = +25°C. Specifications over temperature are guaranteed by design.

Note 2: All digital inputs at VCC or GND.

Note 3: Guaranteed by design.

Note 4: Cb = total capacitance of one bus line in pF. tR and tF measured between 0.8V and 2.1V.

Note 5: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) to bridge

the undefined region of SCL’s falling edge.

Note 6: ISINK ≤ 6mA. Cb = total capacitance of one bus line in pF. tR and tF measured between 0.8V and 2.1V.

Note 7: Input filters on the SDA, SCL, and AD0 inputs suppress noise spikes less than 50ns.

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