EMC2101-R-ACZL-TR datasheet(13/57 Pages) SMSC

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SMBus Fan Control with 1°C Accurate Temperature Monitoring

Datasheet

SMSC EMC2101

Revision 2.54 (06-16-09)

DATASHEET

Note 3.2

300ns rise time max is required for 400kHz bus operation. For lower clock frequencies the

maximum rise time is (0.1 / fSMB)+ 50ns.

3.4

EEPROM Loader Electrical Specifications (EMC2101-R only)

Setup Time: Stop

tSU:STO

0.6

Data Hold Time

tHD:DAT

0.3

Data Setup Time

tSU:DAT

100

Clock Low Period

tLOW

1.3

Clock High Period

tHIGH

0.6

Clock/Data Fall time

tFALL

300

Min = 20+0.1CLOAD ns

Clock/Data Rise time

tRISE

300

Min = 20+0.1CLOAD ns (Note 3.2)

Capacitive Load

CLOAD

400

per bus line

Table 3.4 EEPROM Loader Electrical Specifications

VDD = 3.0V to 3.6V, TA = 0oC - 85oC, Typical values are at TA = 27°C unless otherwise noted

CHARACTERISTIC

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

Interface

Input High Voltage

VIH

2.1

Input Low Voltage

VIL

0.8

Input High/Low Current

IIH / IIL

-1

Hysteresis

500

Input Capacitance

CIN

5pF

Output Low Sink Current

VOL = 0.4V

Timing

Loading Delay

tDLY

Delay after power-up until EEPROM

loading begins. (See Section 4.9.)

Loading Time

tLOAD

Clock Frequency

fSMB

kHz

Spike Suppression

tSP

Bus free time Start to

Stop

tBUF

1.3

Hold Time: Start

tHD:STA

0.6

Setup Time: Start

tSU:STA

0.6

Table 3.3 SMBus Electrical Specifications (continued)

VDD = 3.0V to 3.6V, TA = 0oC - 85oC, Typical values are at TA = 27°C unless otherwise noted

CHARACTERISTIC

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

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