TC74A7-3.3VAT Microchip Technology, TC74A7-3.3VAT Datasheet - Page 3
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TC74A7-3.3VAT
Manufacturer Part Number
TC74A7-3.3VAT
Description
IC DGTL THERM SNSR 3.3V TO220-5
Manufacturer
Microchip Technology
Datasheet
1.TC74A5-3.3VCTTR.pdf
(16 pages)
Specifications of TC74A7-3.3VAT
Function
Temp Monitoring System (Sensor)
Topology
ADC (Sigma Delta), Register Bank
Sensor Type
Internal
Sensing Temperature
-40°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
No
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-5 (Straight Leads)
Full Temp Accuracy
3 C
Digital Output - Bus Interface
I2C, SMBus
Digital Output - Number Of Bits
8 bit
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Description/function
Tiny Serial Digital Thermal Sensor
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Supply Current
350 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
TC74A73.3VAT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC74A7-3.3VAT
Manufacturer:
MICROCHIP
Quantity:
12 000
DC CHARACTERISTICS (CONTINUED)
2002 Microchip Technology Inc.
Electrical Specifications: Unless otherwise noted, V
V
SMBus/I
SMBus/I
START Condition Setup Time
(for repeated START
Condition)
START Condition Hold Time
Data In Setup Time
Data In Hold Time
STOP Condition Setup Time
Bus Free Time Prior to New
Transition
Power-on Reset Delay
Note 1: Operating current is an average value integrated over multiple conversion cycles. Transient current may
DD
= 5.0V for TC74AX-5.0VXX, -40°C ≤ T
2: Maximum ensured conversion time after Power-on Reset (POR to DATA_RDY) is 250 msec.
3: Output current should be minimized for best temperature accuracy. Power dissipation within the TC74 will
4: SDA and SCLK must be connected to V
5: V
2
2
Parameters
C Rise Time
C Fall Time
exceed this specification.
cause self-heating and temperature drift error.
properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified for rated
accuracy at its nominal supply voltage. As V
of V
DD
DD
= 3.3V for TC74AX -3.3 VXX. V
change.
t
t
SU(START)
t
t
SU(STOP)
H(START)
SU-DATA
t
Sym
H-DAT
t
t
IDLE
POR
t
t
R
F
A
≤ 125°C. Note 5
DD
= 5.0V for TC74AX -5.0 VXX. All part types of the TC74 will operate
1000
1250
DD
Min
4.0
4.0
4.0
4.7
—
—
—
or GND.
DD
DD
= 3.3V for TC74AX-3.3VXX and
varies from the nominal value, accuracy will degrade 1°C/V
Typ
500
—
—
—
—
—
—
—
—
Max
1000
300
—
—
—
—
—
—
—
Units
nsec
nsec
µsec
µsec
nsec
nsec
µsec
µsec
µsec
10% to 90%
90% to10%
90% SCLK to 10% SDA
V
DD
≥ V
POR
Conditions
(Rising Edge)
DS21462C-page 3
TC74