Philips Semiconductors
HCMOS family characteristics
GENERAL
These family specifications cover the common electrical
ratings and characteristics of the entire HCMOS
74HC/HCT/HCU family, unless otherwise specified in the
individual device data sheet.
INTRODUCTION
The 74HC/HCT/HCU high-speed Si-gate CMOS logic
family combines the low power advantages of the
HE4000B family with the high speed and drive capability of
the low power Schottky TTL (LSTTL).
The family will have the same pin-out as the 74 series and
provide the same circuit functions.
In these families are included several HE4000B family
circuits which do not have TTL counterparts, and some
special circuits.
The basic family of buffered devices, designated as
XX74HCXXXXX, will operate at CMOS input logic levels
for high noise immunity, negligible typical quiescent supply
and input current. It is operated from a power supply of
2 to 6 V.
FAMILY
SPECIFICATIONS
A subset of the family, designated as XX74HCTXXXXX,
with the same features and functions as the “HC-types”,
will operate at standard TTL power supply voltage
(5 V
±
10%) and logic input levels (0.8 to 2.0 V) for use as
pin-to-pin compatible CMOS replacements to reduce
power consumption without loss of speed. These types are
also suitable for converted switching from TTL to CMOS.
Another subset, the XX74HCUXXXXX, consists of
single-stage unbuffered CMOS compatible devices for
application in RC or crystal controlled oscillators and other
types of feedback circuits which operate in the linear
mode.
HANDLING MOS DEVICES
Inputs and outputs are protected against electrostatic
effects in a wide variety of device-handling situations.
However, to be totally safe, it is desirable to take handling
precautions into account
(see also
“HANDLING PRECAUTIONS”).
RECOMMENDED OPERATING CONDITIONS FOR 74HC/HCT
74HC
SYMBOL PARAMETER
min. typ.
V
CC
V
I
V
O
T
amb
T
amb
t
r
, t
f
DC supply voltage
DC input voltage range
DC output voltage range
2.0
0
0
5.0
max.
6.0
V
CC
V
CC
+85
+125
1000
6.0
500
400
Note
1. For analog switches, e.g. “4016”, “4051 series”, “4351 series”, “4066” and “4067”, the specified maximum operating
supply voltage is 10 V.
6.0
500
ns
min. typ. max.
4.5
0
0
−40
−40
5.0
5.5
V
CC
V
CC
+85
+125
V
V
V
°C
°C
see DC and AC
CHAR. per device
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
74HCT
UNIT CONDITIONS
operating ambient temperature range
−40
operating ambient temperature range
−40
input rise and fall times except for
Schmitt-trigger inputs
March 1988
2
Philips Semiconductors
HCMOS family characteristics
RECOMMENDED OPERATING CONDITIONS FOR 74HCU
FAMILY SPECIFICATIONS
74HCU
SYMBOL
V
CC
V
I
V
O
T
amb
T
amb
PARAMETER
min. typ. max.
DC supply voltage
DC input voltage range
DC output voltage range
operating ambient temperature range
operating ambient temperature range
2.0
0
0
−40
−40
5.0
6.0
V
CC
V
CC
+85
V
V
V
°C
see DC and AC
CHAR. per device
UNIT CONDITIONS
+125 °C
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Voltages are referenced to GND (ground = 0 V)
SYMBOL
V
CC
±I
IK
±I
OK
±I
O
PARAMETER
DC supply voltage
DC input diode current
DC output diode current
DC output source or sink
current
standard outputs
bus driver outputs
±I
CC
;
±I
GND
DC V
CC
or GND current for
types with:
standard outputs
bus driver outputs
T
stg
P
tot
storage temperature range
power dissipation per package
plastic DIL
plastic mini-pack (SO)
Note
1. For analog switches, e.g. “4016”, “4051 series”, “4351 series”, “4066” and “4067”, the specified maximum operating
supply voltage is 11 V.
750
500
mW
mW
−65
50
70
+150
mA
mA
°C
for temperature range:
−40
to
+125 °C
74HC/HCT/HCU
above
+70 °C:
derate linearly with 12 mW/K
above
+70 °C:
derate linearly with 8 mW/K
25
35
mA
mA
MIN. MAX.
−0.5
+7
20
20
UNIT CONDITIONS
V
mA
mA
for V
I
< −0.5
or V
I
>
V
CC
+
0.5 V
for V
O
< −0.5
or V
O
>
V
CC
+
0.5 V
for
−0.5
V
<
V
O
<
V
CC
+
0.5 V
March 1988
3
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