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2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FT7521
Rev. 1.0.8
3
FT7521
—
Re
set
Ti
mer
with
Fi
x
ed
De
lay
and
Rese
t
Pulse
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
Parameter
Condition
Min.
Max.
Unit
VCC
Supply Voltage
-0.5
7.0
V
VIN
DC Input Voltage
/SR0, DSR
-0.5
7.0
V
VOUT
Output Voltage
(2)
/RST1
-0.5
7.0
V
IIK
DC Input Diode Current
VIN < 0V
-50
mA
IOK
DC Output Diode Current
VOUT < 0V
-50
mA
IOL
DC Output Sink Current
+50
mA
ICC
DC VCC or Ground Current per Supply Pin
100
mA
TSTG
Storage Temperature Range
-65
+150
C
TJ
Junction Temperature Under Bias
+150
C
TL
Junction Lead Temperature, Soldering 10 Seconds
+260
C
PD
Power Dissipation
5
mW
ESD
Electrostatic Discharge Capability
Human Body Model, JESD22-A114
4
kV
Charged Device Model, JESD22-C101
2
Note:
2.
All output current Absolute Maximum Ratings must be observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
Condition
Min.
Max.
Unit
VCC
Supply Voltage
(3)
-40
C to +85C
1.8
5.0
V
-25
C to +85C
1.7
5.0
0
C to +85C
1.65
5.00
tRFC
VCC Recovery Time After Power
Down
VCC=0 V After Power Down, Rising to 0.5 V
5
ms
VIN
Input Voltage
(3)
/SR0
0
5
V
VOUT
Output Voltage
/RST1
0
5
V
IOL
DC Output Sink Current
/RST1, VCC=1.8 V to 5.0 V
+3
mA
TA
Free-Air Operating Temperature
-40
+85
C
JA
Thermal Resistance
350
°C/W
Note:
3.
VCC supply should never be allowed to float while input pins are driven.
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