DS1721U Maxim Integrated Products, DS1721U Datasheet - Page 16
DS1721U
Manufacturer Part Number
DS1721U
Description
IC THERMOMETER/STAT DIG HP 8USOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1721STR.pdf
(17 pages)
Specifications of DS1721U
Function
Thermometer, Thermostat
Topology
ADC, Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
Yes
Output Fan
Yes
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Full Temp Accuracy
+/- 2 C
Digital Output - Bus Interface
Serial (2-Wire)
Digital Output - Number Of Bits
12 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1721U+
Manufacturer:
Maxim
Quantity:
2 250
Company:
Part Number:
DS1721U+T&R
Manufacturer:
MAXIM
Quantity:
2
Part Number:
DS1721U+T&R
Manufacturer:
MAXIM/美信
Quantity:
20 000
NOTES:
1. All voltages are referenced to ground.
2. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if V
3. I
4. I
5. After this period, the first clock pulse is generated.
6. The maximum t
7. A fast mode device can be used in a standard mode system, but the requirement t
8. C
TIMING DIAGRAMS Figure 7
Capacitive Load for
each Bus Line
Input Capacitance
SCL signal.
then be met. This will automatically be the case if the device does not stretch the LOW period of the
SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next
data bit to the SDA line t
DD
DD
b
- total capacitance of one bus line in pF.
specified with T
specified with V
HD:DAT
OUT
DD
has only to be met if the device does not stretch the LOW period (t
at 5.0V and SDA,SCL = 5.0V, 0°C to 70°C.
pin open.
C
C
R
b
I
MAX+t
SU:DAT
1000+250 = 1250 ns before the SCL line is released.
16 of 17
5
400
DD
is switched off.
SU:DAT
pF
pF
>250 ns must
LOW
) of the
8