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74HC9114N

Nine wide Schmitt trigger buffer; open drain outputs; inverting

Philips Electronics 

Philips Semiconductors

Nine wide Schmitt trigger buffer;

open drain outputs; inverting

Product specification

74HC/HCT9114

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Transfer characteristics are given below.

Output capability: standard

ICC category: MSI

Note to HCT types

The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.

To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.

INPUT

UNIT LOAD COEFFICIENT

An

0.3

TRANSFER CHARACTERISTICS FOR 74HCT

Voltages are referred to GND (ground = 0 V)

Tamb (°C)

TEST CONDITIONS

SYMBOL PARAMETER

74HCT

+25

−40 to +85

−40 to +125

UNIT

VCC

(V)

WAVEFORMS

min. typ. max. min. max. min. max.

VT+

positive-going

threshold

0.9 1.50 2.0 0.9 2.0 0.9 2.0 V

1.2 1.70 2.1 1.2 2.1 1.2 2.1

4.5 Fig.6

5.5

VT−

negative-going

threshold

0.7 1.06 1.4 0.7 1.4 0.7 1.4 V

0.8 1.27 1.7 0.8 1.7 0.8 2.7

4.5 Fig.6

5.5

VH

hysteresis (VT+ − VT−) 0.2 0.44 0.8 0.2 0.8 0.2 0.8 V

4.5 Fig.6

0.2 0.44 0.8 0.2 0.8 0.2 0.8

5.5

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; tr = tf = 6 ns; CL = 50 pF

Tamb (°C)

SYMBOL PARAMETER

74HCT

+25

−40 to +85

min. typ. max. min. max.

tPHL/ tPLZ propagation delay

An to Yn

17 31

39

tTHL

output transition time

7 15

19

−40 to +125

min. max.

47

22

TEST CONDITIONS

UNIT

VCC

(V)

WAVEFORMS

ns 4.5 Fig.7

ns 4.5 Fig.7

December 1990

6

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