ETC HD74HC442/HD74HC443/HD74HC444

HD74HC442/HD74HC443/HD74HC444
Quad. Tridirectional Bus Transceiver
(with noninverted 3-state outputs)
Quad. Tridirectional Bus Transceiver
(with inverted 3-state outputs)
Quad Tridirectional Bus Transceiver
(with noninverted/inverted 3-state outputs)
ADE-205-506 (Z)
1st. Edition
September 2000
Description
These bus transceivers are designed for a synchronous three-way communication between four-line data
buses. They give the designer a choice of selecting inverting, noninverting or a combination of inverting
and noninverting data paths with 3-state outputs.
The S 0 and S1 inputs select the bus from which data are to be transferred. The G inputs enable the bus or
buses to which data are to be transferred. The port for any bus selected for input and any other bus not
enabled for output will be at high impedance.
Features
•
•
•
•
•
High Speed Operation
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
HD74HC442/HD74HC443/HD74HC444
Function Table
Inputs
Transfers Between Buses
CS
S1
S0
GA
GB
GC
HD74HC442
HD74HC443
HD74HC444
H
X
X
X
X
X
None
None
None
X
H
H
X
X
X
None
None
None
X
X
X
H
H
H
None
None
None
X
L
L
X
H
H
None
None
None
X
L
H
H
X
H
None
None
None
X
H
L
H
H
X
None
None
None
L
L
L
X
L
L
A → B, A → C
A → B, A → C
A → B, A → C
L
L
H
L
X
L
B → C, B → A
B → C, B → A
B → C, B → A
L
H
L
L
L
X
C → A, C → B
C → A, C → B
C → A, C → B
L
L
L
X
L
H
A→B
A→B
A→B
L
L
H
H
X
L
B→C
B→C
B→C
L
H
L
L
H
X
C→A
C→A
C→A
L
L
L
X
H
L
A→C
A→C
A→C
L
L
H
L
X
H
B→A
B→A
B→A
L
H
L
H
L
X
C→B
C→B
C→B
2
HD74HC442/HD74HC443/HD74HC444
Pin Arrangement
CS 1
20 VCC
B1 2
19 GC
C1 3
18 GB
C2 4
17 GA
B2 5
16 A1
B3 6
15 A2
C3 7
14 A3
C4 8
13 A4
B4 9
12 S1
GND 10
11 S0
(Top view)
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply voltage range
VCC
–0.5 to +7.0
V
Input voltage
VIN
–0.5 to VCC + 0.5
V
Output voltage
VOUT
–0.5 to VCC + 0.5
V
Output current
I OUT
±35
mA
DC current drain per VCC GND
I CC, I GND
±75
mA
DC input diode current
I IK
±20
mA
DC output diode current
I OK
±20
mA
Power Dissipation per package
PT
500
mW
Storage temperature
Tstg
–65 to +150
°C
3
HD74HC442/HD74HC443/HD74HC444
Logic Diagram
HD74HC442
S0
A1
B1
C1
A2
B2
C2
A3
B3
C3
A4
B4
C4
4
S1
GA GB GC CS
HD74HC442/HD74HC443/HD74HC444
HD74HC443
S0
S1
GA GB GC CS
A1
B1
C1
A2
B2
C2
A3
B3
C3
A4
B4
C4
5
HD74HC442/HD74HC443/HD74HC444
HD74HC444
S0
A1
B1
C1
A2
B2
C2
A3
B3
C3
A4
B4
C4
6
S1
GA GB GC CS
HD74HC442/HD74HC443/HD74HC444
DC Characteristics
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Input voltage
VIH
2.0
1.5 —
—
1.5
—
V
4.5
3.15 —
—
3.15
—
6.0
4.2 —
—
4.2
—
2.0
—
—
0.5
—
0.5
4.5
—
—
1.35 —
1.35
6.0
—
—
1.8
—
1.8
2.0
1.9 2.0 —
1.9
—
4.5
4.4 4.5 —
4.4
—
6.0
5.9 6.0 —
5.9
—
4.5
4.18 —
—
4.13
—
I OH = –6 mA
6.0
5.68 —
—
5.63
—
I OH = –7.8 mA
2.0
—
0.0 0.1
—
0.1
4.5
—
0.0 0.1
—
0.1
6.0
—
0.0 0.1
—
0.1
4.5
—
—
0.26 —
0.33
I OL = 6 mA
6.0
—
—
0.26 —
0.33
I OL = 7.8 mA
VIL
Output voltage
VOH
VOL
Test Conditions
V
V
V
Vin = VIH or VIL I OH = –20 µA
Vin = VIH or VIL I OL = 20 µA
Off-state output
current
I OZ
6.0
—
—
±0.5 —
±5.0
µA
Vin = VIH or VIL,
Vout = VCC or GND
Input current
Iin
6.0
—
—
±0.1 —
±1.0
µA
Vin = VCC or GND
Quiescent supply
current
I CC
6.0
—
—
4.0
40
µA
Vin = VCC or GND, Iout = 0 µA
—
7
HD74HC442/HD74HC443/HD74HC444
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = –40 to
+85°C
Ta = 25°C
VCC (V) Min Typ Max Min
Max
Unit
Propagation delay t PLH
2.0
—
—
200 —
250
ns
time
4.5
—
—
40
—
50
6.0
—
—
34
—
43
Item
Symbol
t PHL
Output enable
t ZH
2.0
—
—
150 —
190
time
t ZL
4.5
—
—
30
—
38
6.0
—
—
26
—
33
Output disable
t HZ
2.0
—
—
150 —
190
time
t LZ
4.5
—
—
30
—
38
6.0
—
—
26
—
33
Output rise/fall
t TLH
2.0
—
—
60
—
75
time
t THL
4.5
—
—
12
—
15
6.0
—
—
10
—
13
—
—
5
10
—
10
Input capacitance
8
Cin
ns
ns
ns
pF
Test Conditions
HD74HC442/HD74HC443/HD74HC444
Package Dimensions
Unit: mm
24.50
25.40 Max
1
7.00 Max
11
6.30
20
10
1.30
2.54 ± 0.25
0.48 ± 0.10
0.51 Min
1.27 Max
7.62
2.54 Min 5.08 Max
0.89
+ 0.11
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-20N
—
Conforms
1.26 g
Unit: mm
12.6
13 Max
11
1
10
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
20
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-20DA
—
Conforms
0.31 g
9
HD74HC442/HD74HC443/HD74HC444
Unit: mm
12.8
13.2 Max
11
1
10
0.20 ± 0.10
0.935 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.25
10.40 +– 0.40
1.45
0° – 8°
0.57
0.70 +– 0.30
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
10
*0.27 ± 0.05
0.25 ± 0.04
2.65 Max
7.50
20
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-20DB
Conforms
—
0.52 g
HD74HC442/HD74HC443/HD74HC444
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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Colophon 2.0
11