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PCF1252-2 Datasheet(PDF) 8 Page - NXP Semiconductors

Part # PCF1252-2
Description  Threshold detector and reset generator
PDF  16 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF1252-2 Datasheet(HTML) 8 Page - NXP Semiconductors

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1998 Apr 16
8
Philips Semiconductors
Product specification
Threshold detector and reset generator
PCF1252-X family
Fig.8 Reset and save times as a function of the external capacitor (CCT).
(1) tR (typ.) = (0.1 + CCT) ms.
(2) tS (typ.) = (0.01 + 0.1 CCT) ms.
handbook, full pagewidth
10−1
10−1
10
102
103
10−1
102
102
103
10
1
10−2
10−2
10−3
1
external capacitor (nF)
MGC922
1
10
(ms)
tR(1)
(ms)
tS(2)
APPLICATION INFORMATION
Fig.9
Typical power-on reset circuit for a microcontroller/microprocessor system; (when not used, COMIN must
be connected to VDD).
handbook, full pagewidth
MICROCONTROLLER/
MICROPROCESSOR
VDD
VDD
VDD
RESET
MGC923
RESET
COMIN
PCF1252-X
SELECT
VSS
VSS
VSS
CT
(0 V)
(
+5 V)
1 nF



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