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Número de pieza
componentes Descripción
HD74HCT688 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics
Número de pieza
componentes Descripción
Fabricante
HD74HCT688
8-bit Magnitude Comparator
Hitachi -> Renesas Electronics
HD74HCT688 Datasheet PDF : 8 Pages
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HD74HCT688
DC Characteristics
Ta = 25
°
C
Ta = –40 to
+85
°
C
Test Conditions
Item
Input voltage
Symbol Min Typ Max Min
V
IH
2.0 — — 2.0
Max
—
Unit
V
V
CC
(V)
4.5 to
5.5
V
IL
— — 0.8 — 0.8 V 4.5 to
5.5
Output voltage
V
OH
V
OL
Input current
Iin
Quiescent current I
CC
4.4 — — 4.4 — V 4.5
4.18 — — 4.13 —
4.5
— — 0.1 — 0.1 V 4.5
— — 0.26 — 0.33
4.5
— —
±
0.1 —
±
1.0
µ
A 5.5
— — 4.0 — 40
µ
A 5.5
Vin = V
IH
or V
IL
I
OH
= –20
µ
A
I
OH
= –4 mA
Vin = V
IH
or V
IL
I
OL
= 20
µ
A
I
OL
= 4 mA
Vin = V
CC
or GND
Vin = V
CC
or GND, Iout = 0
µ
A
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Item
Symbol
Propagation delay t
PLH
time
t
PHL
t
PLH
t
PHL
Output rise/fall
t
TLH
time
t
THL
Input capacitance Cin
Ta = 25
°
C
Ta = –40 to
+85
°
C
Min Typ Max Min Max
— 17 42 — 53
— 19 42 — 53
— 9 24 — 30
— 12 24 — 30
— 5 15 — 19
— 5 10 — 10
Unit
ns
ns
ns
pF
Test Conditions
V
CC
(V)
4.5
Por Q to output
4.5
4.5
Enable to output
4.5
4.5
—
4
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