tcn75 Microchip Technology Inc., tcn75 Datasheet - Page 4

• Manufacturer Part Number: tcn75
• Description: 2-wire Serial Temperature Sensor And Thermal Monitor
• Manufacturer: Microchip Technology Inc.

TCN75
TCN75 ELECTRICAL SPECIFICATIONS (CONTINUED)
TIMING DIAGRAM
DS21490C-page 4
Electrical Characteristics: 2.7V ≤ V
Serial Port Timing
f
t
t
t
t
t
t
t
t
t
t
t
Note
SC
LOW
HIGH
R
F
SU(START)
SC
H(START)
DSU
DH
SU(STOP)
IDLE
Symbol
1:
2:
3:
for rated accuracy at its nominal supply voltage. As V
All part types of the TCN75 will operate properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified
Human body model, 100 pF discharged through a 1.5k resistor.
Output current should be minimized for best temperature accuracy. Power dissipation within the TCN75 will cause self-heating and
temperature drift. At maximum rated output current and saturation voltage, 4 mA and 0.8V, respectively, the error amounts to 0.544°C for
the SOIC.
Parameter
Serial Port Frequency
Low Clock Period
High Clock Period
SCL and SDA Rise Time
SCL and SDA Fall Time
Start Condition Setup Time (for
repeated Start Condition)
SCL Clock Period
Start Condition Hold Time
Data in Setup Time to SCL High
Data in Hold Time after SCL Low
Stop Condition Setup Time
Bus Free Time Prior to New Transition
Data Out
Data In
SDA
SCL
SDA
DD
≤ 5.5V; -55°C ≤ (T
t
H
(Start)
t SC
1250
1250
1250
1250
Min
100
100
100
2.5
—
—
DD
0
0
varies from the nominal value, accuracy will degrade 1°C/V of V
t
DH
A
t DSU
= T
J
Typ
100
) ≤ 125°C, C
—
—
—
—
—
—
—
—
—
—
—
Max
400
250
250
—
—
—
—
—
—
—
—
—
L
= 80 pF, unless otherwise noted.
Unit
nsec
nsec
nsec
nsec
nsec
μsec
nsec
nsec
nsec
nsec
nsec
kHz
© 2006 Microchip Technology Inc.
t
SU
Test Conditions
(Stop)
DD
change.