M54HC240HV/241HV
M74HC240HV/241HV
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS
HC240HV: INVERTED - HC241HV NON INVERTED
.
.
.
.
.
.
.
.
HIGH SPEED
t
PD
= 12 ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION
o
I
CC
= 4
µA
(MAX.) at T
A
= 25 C
HIGH NOISE IMMUNITY
V
NIH
= V
INL
= 28 % V
CC
(MIN.)
OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
|I
OH
| = I
OL
= 6 mA (MIN)
BALANCED PROPAGATION DELAYS
t
PLH
= t
PHL
SAME FUNCTION OF HC240/241 PLUS HIGH
TO LOW LEVEL LOGIC CONVERSION CAPA-
BILITY
LATCH UP FREE OPERATION ALSO WHEN
V
IH
IS HIGHER THAN V
CC
B1R
(Plastic Package)
F1R
(Ceramic Package)
M1R
(Micro Package)
ORDER CODES :
M54HCXXXHVF1R
M74HCXXXHVM1R
M74HCXXXHVB1R
DESCRIPTION
The M54/74HC240HV and HC241HV are high
speed CMOS OCTAL BUS BUFFERs fabricated in
silicon gate C
2
MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power
consumption.
Performing the same function of their non HV
counterpart, they have a particularl input
configuration which allows all inputs to be driven by
PIN CONNECTION
(top view)
HC240HV
HC241HV
logic levels exceeding the supply voltage.
This makes them particularly suitable in systems
where mixed 3V/5V logic devices need to be
interfaced.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
NOTE: BOTH DEVICES DO NOT MEET 2KV ESD
RATING
April 1993
1/10
M54/M74HC240HV/241HV
TRUTH TABLE
INPUT
G
L
L
H
X: ”H” or ”L”
Z: High impedance
OUTPUT
An
L
H
X
Yn (HC240HV)
H
L
Z
Yn (HC241HV)
L
H
Z
G (HC241)
H
H
L
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
or I
GND
P
D
T
stg
T
L
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Source Sink Current Per Output Pin
DC V
CC
or Ground Current
Power Dissipation
Storage Temperature
Lead Temperature (10 sec)
Parameter
Value
-0.5 to 13
-0.5 to 13
-0.5 to V
CC
+ 0.5
- 20
±
100
±
35
±
100
500 (*)
-65 to +150
300
Unit
V
V
V
mA
mA
mA
mA
mW
o
o
C
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW:
≅
65
o
C derate to 300 mW by 10mW/
o
C: 65
o
C to 85
o
C
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
T
op
t
r
, t
f
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature:
M54HC
Series
M74HC
Series
Input Rise and Fall Time
Parameter
Value
2 to 6
0 to 12
0 to V
CC
-55 to +125
-40 to +85
0 to 1000
0 to 500
0 to 400
Unit
V
V
V
C
C
ns
o
o
V
CC
= 2 V
V
CC
= 4.5 V
V
CC
= 6 V
3/10
M54/M74HC240HV/241HV
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Test Conditions
Symbol
Parameter
V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
t
PLZ
t
PHZ
C
IN
C
OUT
C
PD
(*)
Output Disable
Time
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
2.0
4.5
6.0
C
L
(pF)
T
A
= 25 C
54HC and 74HC
Min.
Typ.
25
7
6
40
13
11
52
17
14
52
17
14
63
21
18
40
19
15
5
10
33
Max.
60
12
10
110
22
19
135
27
23
135
27
23
165
33
28
135
27
23
10
o
Value
-40 to 85
o
C -55 to 125
o
C
74HC
54HC
Min.
Max.
75
19
13
140
28
24
170
34
29
170
34
29
205
41
35
170
34
29
10
Min.
Max.
90
18
15
165
33
28
205
41
35
205
41
35
250
50
43
205
41
35
10
Unit
t
TLH
t
THL
t
PLH
t
PHL
Output Transition
Time
Propagation
Delay Time
50
ns
50
ns
150
ns
t
PZL
t
PZH
Output Enable
Time
50
R
L
= 1KΩ
ns
150
R
L
= 1KΩ
ns
50
R
L
= 1KΩ
ns
pF
pF
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
/8 (per circuit)
TEST CIRCUIT I
CC
(Opr.)
HC240HV
5/10
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