74HC9114 Datasheet, PDF (6/7 Pages) NXP Semiconductors – Nine wide Schmitt trigger buffer; open drain outputs; inverting

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
I_CC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆I_CC) for a unit load of 1 is given in the family specifications.
To determine ∆I_CC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
UNIT LOAD COEFFICIENT
A_n
0.3
TRANSFER CHARACTERISTICS FOR 74HCT
Voltages are referred to GND (ground = 0 V)
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
−40 to +85
−40 to +125
UNIT
V_CC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
V_T+
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
V_T−
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
V_H
hysteresis (V_T+ − V_T−) 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; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
SYMBOL PARAMETER
74HCT
+25
−40 to +85
min. typ. max. min. max.
t_PHL/ t_PLZ propagation delay
A_n to Y_n
17 31
39
t_THL
output transition time
7 15
19
−40 to +125
min. max.
47
22
TEST CONDITIONS
UNIT
V_CC
(V)
WAVEFORMS
ns 4.5 Fig.7
ns 4.5 Fig.7
December 1990
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