PCF1252-4 datasheet(4/16 Pages) PHILIPS

4 / 16 page

1998 Apr 16

Philips Semiconductors

Product speciﬁcation

Threshold detector and reset generator

PCF1252-X family

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

HANDLING

Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is

desirable to take normal handling precautions appropriate to handling MOS devices (see

“Handling MOS Devices”).

CHARACTERISTICS

VDD = 2.4 to 6.0 V; VSS =0V; Tamb = −40 to +85 °C; (see Fig.3); unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

VDD

supply voltage

−0.5

+7.0

input voltage

−0.5

VDD + 0.5

DC clamp-diode current

all pins: VI < −0.5 V

or VI >VDD + 0.5 V

−

output current

−

Ptot

total power dissipation

−

150

Tstg

storage temperature

−65

+100

°C

Tamb

operating ambient temperature

−40

+85

°C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VDD

supply voltage

2.4

−

6.0

VTRIP

Voltage trip-point:

Tamb =25 °C; note 1

PCF1252-0

4.70

4.75

4.80

PCF1252-1

4.50

4.55

4.60

PCF1252-2

4.20

4.25

4.30

PCF1252-3

4.00

4.05

4.10

PCF1252-4

3.70

3.75

3.80

PCF1252-5

3.50

3.55

3.60

PCF1252-6

3.20

3.25

3.30

PCF1252-7

3.00

3.05

3.10

PCF1252-8

2.70

2.75

2.80

PCF1252-9

2.50

2.55

2.60

IDD

supply current

Tamb =25 °C;

VDD =VTRIP + 0.5 V;

COMIN = VDD;

see Figs. 4 and 5

−

µA

∆V

TRIP

voltage trip-point temperature

coefﬁcient

note 2

−±100 × 10−6 ±400 × 10−6 mV/K

Vhys

voltage trip-point hysteresis

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