M54/74HC266
M54/74HC7266
March 1993
HC7266 QUAD EXCLUSIVE NOR GATE
HC266 QUAD EXCLUSIVE NOR GATE WITH OPEN DRAIN
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXX1R
M74HCXXXB1R
M74HCXXXC1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
DESCRIPTION
.
HIGH SPEED
t
PD
= 10 ns (TYP.) AT V
CC
= 5 V
.
LOW POWER DISSIPATION
I
CC
= 1
A (MAX.) AT T
A
= 25
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE (7266)
|I
OH
| = I
OL
= 4 mA (MIN.)
.
BALANCED PROPAGATION DELAYS (7266)
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO 6 V
.
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS7266
The M54/74HC266/7266 are high speed CMOS
QUAD EXCLUSIVE NOR GATES, fabricated in sili-
con gate C
2
MOS technology. They have the same
high speed performance of LSTTL combined with
true CMOS low power consumption.
The HC266 has a high performance N-channel
MOS transistor (OPEN DRAIN output).
The HC7266 has an output buffer which is CMOS
structure.
Input and output buffers ensure high noise immunity
and stable outputs.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
1/11
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
DD
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
DD
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Source Sink Current Per Output Pin
25
mA
I
CC
or I
GND
DC V
CC
or Ground Current
50
mA
P
D
Power Dissipation
500 (*)
mW
T
stg
Storage Temperature
-65 to +150
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
(*) 500 mW:
65
o
C derate to 300 mW by 10mW/
o
C: 65
o
C to 85
o
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2 to 6
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature: M54HC Series
M74HC Series
-55 to +125
-40 to +85
o
C
o
C
t
r
, t
f
Input Rise and Fall Time
V
CC
= 2 V
0 to 1000
ns
V
CC
= 4.5 V
0 to 500
V
CC
= 6 V
0 to 400
M54/M74HC266/7266
3/11
AC ELECTRICAL CHARACTERISTICS (C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
-40 to 85
o
C
74HC
-55 to 125
o
C
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
t
THL
Output Transition
Time (HC266)
2.0
30
75
95
110
ns
4.5
8
15
19
22
6.0
7
13
16
19
t
TLH
t
THL
Output Transition
Time (HC7266)
2.0
30
75
95
110
ns
4.5
8
15
19
22
6.0
7
13
16
19
t
PLZ
t
PZL
Propagation
Delay Time
(HC266)
2.0
R
L
= 1K
48
90
115
135
ns
4.5
12
18
23
27
6.0
10
15
20
23
t
PLH
t
PHL
Propagation
Delay Time
(HC7266)
2.0
36
90
115
135
ns
4.5
11
18
23
27
6.0
9
15
20
23
C
IN
Input Capacitance
5
10
10
10
pF
C
PD
(*)
Power Dissipation
Capacitance
20
pF
(*) C
PD
is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/4 (per Gate)
SWITCHING CHARACTERISTICS TEST CIRCUIT (HC266)
M54/M74HC266/7266
5/11
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