TC655 Microchip Technology Inc., TC655 Datasheet - Page 4

• Manufacturer Part Number: TC655
• Description: Dual Smbus Pwm Fan Speed Controllers With Fan Fault Detection
• Manufacturer: Microchip Technology Inc.

TC654/TC655
ELECTRICAL SPECIFICATIONS (CONTINUED)
TEMPERATURE SPECIFICATIONS
TIMING SPECIFICATIONS
DS21734A-page 4
Electrical Characteristics: Unless otherwise noted, all limits are specified for V
2-Wire Serial Bus Interface
Logic Input High
Logic Input Low
Logic Output Low
Input Capacitance SDA, SCLK
I/O Leakage Current
SDA Output Low Current
Note 1: Not production tested, ensured by design, tested during characterization.
Electrical Characteristics: Unless otherwise noted, all parameters apply at V
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 10 Pin MSOP
Electrical Characteristics: Unless otherwise noted, all limits are specified for V
-40°C <T
SMBus Interface (See Figure 1-1)
Serial Port Frequency
Low Clock Period
High Clock Period
SCLK and SDA Rise Time
SCLK and SDA Fall Time
Start Condition Setup Time
SCLK Clock Period Time
Start Condition Hold Time
Data in SetupTime to SCLK
High
Data in Hold Time after SCLK
Low
Stop Condition Setup Time
Bus Free Time Prior to New
Transition
Note 1: Not production tested, ensured by design, tested during characterization.
-40°C <T
2: For 5.0 V > V
2: Time the bus must be free before a new transmission can start.
A
A
Parameters
< +85°C
< +85°C.
Parameters
Parameters
DD
5.5 V, the limit for V
t
t
SU(START)
t
t
SU(STOP)
H(START)
SU-DATA
t
H-DATA
t
Sym
t
t
HIGH
LOW
IDLE
f
t
SC
t
SC
t
R
F
I
OLSDA
I
Sym
Symbol
V
LEAK
V
C
V
OL
IH
IN
IL
T
T
T
IH
JA
A
A
A
= 2.2 V.
Min
250
300
4.7
4.7
4.7
4.0
4.0
4.7
10
—
—
0
Min
-1.0
2.1
—
—
—
Min
6
-40
-40
-65
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
Typ
Typ
113
10
—
—
—
—
—
—
—
—
1000
Max
100
300
—
—
—
—
—
—
—
—
+125
+150
Max
+85
Max
+1.0
—
0.8
0.4
—
15
—
Units
µsec Note 1
µsec Note 1
nsec Note 1
nsec Note 1
µsec Note 1
µsec Note 1
µsec Note 1
nsec Note 1
nsec Note 1
µsec Note 1
µsec Note 1 and Note 2
kHz
DD
DD
DD
= 3.0 V to 5.5 V
= 3.0 V to 5.5 V,
= 3.0 V to 5.5 V,
Note 1
Units
Units
°C/W
mA
pF
µA
°C
°C
°C
V
V
V
2002 Microchip Technology Inc.
Note 2
I
Note 1
V
OL
OL
Conditions
= 3 mA
= 0.6 V
Conditions
Conditions