74LVC1G123 datasheet(13/31 Pages) PHILIPS

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74LVC1G123

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Product data sheet

Rev. 4 — 27 November 2013

13 of 31

NXP Semiconductors

74LVC1G123

Single retriggerable monostable multivibrator; Schmitt trigger inputs

[1]

Typical values are measured at Tamb =25 C and VCC = 1.8 V, 2.5 V, 3.3 V and 5.0 V respectively.

[2]

tpd is the same as tPHL and tPLH; tt is the same as tTHL and tTLH

[3]

For other REXT and CEXT combinations see Figure 12, Figure 13 and Figure 14. If CEXT > 10 nF, the next formula is valid.

tW =K  REXT  CEXT, where:

tW = typical output pulse width in ns;

REXT = external resistor in k;

CEXT = external capacitor in pF;

K = constant = 1; see Figure 15 for typical ”K” factor as function of VCC.

CPD

power

dissipation

capacitance

VI = GND to VCC; CEXT = 0 pF;

REXT = 5 k

VCC = 1.8 V

VCC = 2.5 V

REXT = 1 k

VCC = 3.3 V

VCC = 5.0 V

Table 9.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 18.

Symbol Parameter

Conditions

40 C to +85 C

40 C to +125 C Unit

Min

Typ[1]

Max

Min

Max

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