ft7521 Fairchild Semiconductor, ft7521 Datasheet - Page 5
ft7521
Manufacturer Part Number
ft7521
Description
Reset Timer With Fixed Delay Time And Reset Pulse
Manufacturer
Fairchild Semiconductor
Datasheet
1.FT7521.pdf
(8 pages)
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Manufacturer
Quantity
Price
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Part Number:
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© 2009 Fairchild Semiconductor Corporation
FT7521 • Rev. 1.0.1
DC Electrical Characteristics
T
AC Electrical Characteristics
T
Capacitance Specifications
T
Symbol
Symbol
Symbol
A
A
A
=-40°C to +85°C and V
=-40C to +85C and V
=+25C.
t
C
t
PHL1
V
R
C
V
REC
V
I
I
OUT
CC
IN
OL
PU
IH
IN
IL
Timer Delay, /SR0 to RST (DSR=0)
Reset Timeout Delay
Input High Voltage
Input Low Voltage
Low Level Output Voltage
Integrated Pull-Up Resistor on /SR0
Input Leakage Current /SR0
Input Leakage Current DSR
Quiescent Supply Current (Timer
Inactive)
Dynamic Supply Current (Timer Active) /SR0=0V
Input Capacitance
Output Capacitance
Parameter
Parameter
Parameter
CC
CC
=2.0V to 5.0V.
=2.0V to 5.0V.
V
V
DSR, /SR0
DSR, /SR0
RST, I
V
0V V
/SR0=V
C
CC
CC
IN
L
=5pF, R
=GND
=5.0V
Conditions
= V
5
OL
CC
IN
CC
=500µA
5.0V
Conditions
Conditions
L
=5K, See Figure 4
0.65 x V
Min.
CC
Min.
Typ.
320
6.0
50
Typical
Typ. Max.
400
7.5
4.0
5.0
0.25 x V
Max.
1.0
1.0
200
0.3
1
480
9.0
CC
www.fairchildsemi.com
Unit
Unit
Unit
kΩ
µA
µA
ms
pF
V
V
V
pF
s