EMC2101-R-ACZL-TR datasheet(12/57 Pages) SMSC

номер детали	EMC2101-R-ACZL-TR

подробное описание детали	SMBus Fan Control with 1째C Accurate Temperature Monitoring

PDF	57 Pages

Scroll/Zoom	100%

производитель	SMSC [SMSC Corporation]

домашняя страница	http://www.smsc.com

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SMBus Fan Control with 1°C Accurate Temperature Monitoring

Datasheet

Revision 2.54 (06-16-09)

SMSC EMC2101

DATASHEET

3.3

SMBus Client Electrical Specifications

PWM Duty cycle

DPWM

100

DAC Fan Driver

Output Voltage Drive

VDAC

0.2

VDD - 0.2

Current Load = ±1mA

Total Unadjusted Error

TUE

Measured at 3/4 full scale

DAC Resolution

bits

Settling Time to within

tSETTLE

Capacitive Load = 100pF

Digital I/O pins (PWM, SMDATA, SMCLK, ALERT / TACH)

Output High Voltage

VOH

VDD -

0.3

8mA Current Source

Output Low Voltage

VOL

0.3

8mA Current Sink

Output Leakage

Current

ILEAK

Device powered or unpowered

TA < 85°C

pull-up voltage < 3.6V

Table 3.3 SMBus 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

SMBus 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

SMBus Timing

Clock Frequency

fSMB

400

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 3.2 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

UNIT

CONDITIONS

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