ADM1021AARQ-REEL ON Semiconductor, ADM1021AARQ-REEL Datasheet - Page 4

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ADM1021AARQ-REEL

Manufacturer Part Number
ADM1021AARQ-REEL
Description
IC SENSOR TEMP DUAL3/5.5V 16QSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of ADM1021AARQ-REEL

Rohs Status
RoHS non-compliant
Function
Temp Monitoring System (Sensor)
Topology
ADC, Comparator, Multiplexer, Register Bank
Sensor Type
External & Internal
Sensing Temperature
0°C ~ 100°C, External Sensor
Output Type
SMBus™
Output Alarm
Yes
Output Fan
No
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
0°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
1. T
2. Operation at V
3. Guaranteed by design; not production tested.
ELECTRICAL CHARACTERISTICS
SMBus Interface (See Figure 2)
Logic Input High Voltage, V
STBY, SCLK, SDATA
Logic Input Low Voltage, V
STBY, SCLK, SDATA
SMBus Output Low Sink Current
ALERT Output Low Sink Current
Logic Input Current, I
SMBus Input Capacitance, SCLK, SDATA
SMBus Clock Frequency
SMBus Clock Low Time, t
SMBus Clock High Time, t
SMBus Start Condition Setup Time,
t
SMBus Repeat Start Condition
Setup Time, t
SMBus Start Condition Hold Time, t
SMBus Stop Condition Setup Time, t
SMBus Data Valid to SCLK
Rising Edge Time, t
SMBus Data Hold Time, t
SMBus Bus Free Time, t
SCLK Falling Edge to SDATA
Valid Time, t
SU:STA
MAX
SDA
SCL
= 100°C, T
P
VD:DAT
SU:STA
t
BUF
Parameter
DD
S
MIN
SU:DAT
= 5.0 V guaranteed by design; not production tested.
IH
t
= 0°C
HD;STA
, I
BUF
IL
BUF:DAT
LOW
HIGH
IL
IH
t
LOW
SU:STO
HD:STA
t
HD;DAT
t
R
(T
A
Figure 2. Diagram for Serial Bus Timing
= T
V
V
SDATA forced to 0.6 V
ALERT forced to 0.4 V
t
t
Between 90% and 90% points
Time from 10% of SDATA to 90% of SCLK
Time from 90% of SCLK to 10% of SDATA
Time for 10% or 90% of SDATA to 10% of SCLK
Time for 10% or 90% of SDATA to 10% of SCLK
Between start/stop condition
Master clocking in data
LOW
HIGH
DD
DD
MIN
= 3.0 V to 5.5 V
= 3.0 V to 5.5 V
between 10% points
t
to T
between 90% points
HIGH
Test Conditions / Comments
MAX
http://onsemi.com
ADM1021A
, V
t
F
DD
t
SU;DAT
= 3.0 V to 3.6 V, unless otherwise noted. (Note 1)
4
S
t
SU;STA
t
HD;STA
−1.0
Min
250
250
250
250
2.2
6.0
1.0
4.7
4.0
4.7
4.0
4.0
4.7
0
Typ
5.0
t
SU;STO
Max
+1.0
100
0.8
1
1
P
Unit
kHz
mA
mA
mA
pF
ms
ms
ms
ns
ns
ms
ms
ns
ns
ms
ms
ms
ms
V
V

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