HD74HC444T [RENESAS]
HC/UH SERIES, 4-BIT EXCHANGER, TRUE OUTPUT, PDSO20, TSOP-20;
| 型号： | HD74HC444T |
| 厂家： | 
RENESAS TECHNOLOGY CORP |
| 描述： | HC/UH SERIES, 4-BIT EXCHANGER, TRUE OUTPUT, PDSO20, TSOP-20 总线收发器 |
| 文件： | 总8页 (文件大小：190K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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)
REJ03D0627-0200
(Previous ADE-205-506)
Rev.2.00
Mar 30, 2006
Description
These bus transceivers are designed for a synchronous three-way communicatieen four-line data buses. They
give the designer a choice of selecting inverting, noninverting or a combinag and noninverting data paths
with 3-state outputs.
The S0 and S1 inputs select the bus from which data are to be transthe bus or buses to which
data are to be transferred. The port for any bus selected for inpbled for output will be at
high impedance.
Features
•
•
•
•
•
•
High Speed Operation
High Output Current: Fanout of 15
Wide Operating Voltage: VCC =
Low Input Current: 1 µA ma
Low Quiescent Supply Cax (Ta = 25°C)
Ordering Information
ackage Code
(Previous Code)
Package
Abbreviation
Taping Abbreviation
(Quantity)
Part Name
P
HD74HC442RPEL
PRSP0020DC-A
(FP-20DBV)
HD74HC443RPEL SOP-20 pin (JC)
HD74HC444RPEL
RP
EL (1,000 pcs/reel)
Rev.2.00 Mar 30, 2006 page 1 of 7
HD74HC442, HD74HC443, HD74HC444
Function Table
Inputs
Transfers Between Buses
HD74HC443
None
CS
H
X
X
X
X
X
L
S1
X
H
X
L
S0
X
H
X
L
GA
X
X
H
X
H
H
X
L
GB
X
X
H
H
X
H
L
GC
X
X
H
H
H
X
L
HD74HC442
None
HD74HC444
None
None
None
None
None
None
None
None
None
None
L
H
L
None
None
None
H
L
None
None
None
L
A → B, A → C
B → C, B → A
C → A, C → B
A → B
A → B, A → C
B → C, B → A
C → A, C → B
A → B
A → B, A → C
B → C, B → A
C → A, C → B
A → B
L
L
H
L
X
L
L
L
H
L
L
X
H
L
L
L
X
H
L
L
L
L
H
L
X
H
H
X
L
B → C
B → C
C → A
A → C
B → A
B → C
L
H
L
X
L
C → A
C → A
A → C
L
L
X
L
A → C
L
L
H
L
H
X
B → A
B → A
C → B
L
H
H
C → B
→ B
H : high level
L
:
:
low level
irrelevant
X
Pin Arrangement
1
CS
VCC
B
1
19 GC
18
GB
3
17 GA
16 A
1
2
3
4
1
0
A
A
15
14
7
C
4
4
8
13 A
B
S
9
12
GND
10
11 S
(Top view)
Rev.2.00 Mar 30, 2006 page 2 of 7
HD74HC442, HD74HC443, HD74HC444
Logic Diagram
HD74HC442
S0
S1
G
A
GB
GC CS
A1
B1
C1
A2
B2
C2
A3
B3
C3
A
B
C
4
4
4
Rev.2.00 Mar 30, 2006 page 3 of 7
HD74HC442, HD74HC443, HD74HC444
HD74HC443
S0
S1
G
A
GB
GC CS
A1
B1
C1
A2
B2
C2
A3
B3
C3
A
B
C
4
4
4
Rev.2.00 Mar 30, 2006 page 4 of 7
HD74HC442, HD74HC443, HD74HC444
HD74HC444
S0
S1
G
A
GB
GC CS
A1
B1
C1
A2
B2
C2
A3
B3
C3
A
B
C
4
4
4
Rev.2.00 Mar 30, 2006 page 5 of 7
HD74HC442, HD74HC443, HD74HC444
Absolute Maximum Ratings
Item
Supply voltage range
Input / Output voltage
Input / Output diode current
Output current
Symbol
VCC
Ratings
–0.5 to 7.0
–0.5 to VCC +0.5
±20
Unit
V
VIN, VOUT
IIK, IOK
IO
V
mA
mA
mA
mW
°C
±35
VCC, GND current
ICC or IGND
PT
±75
Power dissipation
500
Storage temperature
Tstg
–65 to +150
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Recommended Operating Conditions
Item
Supply voltage
Symbol
VCC
Ratings
2 to 6
Unit
V
Conditions
Input / Output voltage
Operating temperature
VIN, VOUT
Ta
0 to VCC
–40 to 85
0 to 1000
0 to 500
0 to 400
V
VCC = 2.0 V
CC = 4.5 V
Input rise / fall time*1
tr, tf
= 6.0 V
Note: 1. This item guarantees maximum limit when one input s
Waveform: Refer to test circuit of switching charac
Electrical Characteristics
Ta =
°C
Item
Symbol VCC (V)
VIH
Unit
Test Conditions
Min
1
5
4.2
—
Max
—
Input voltage
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
6.0
V
—
—
VIL
35
1.8
—
0.5
1.35
1.8
—
V
V
—
—
Output voltage
VO
4.18
5.68
—
0
4.5
6.0
—
1.9
4.4
5.9
4.13
5.63
—
Vin = VIH or VIL IOH = –20 µA
—
—
—
—
—
—
IOH = –6 mA
IOH = –7.8 mA
—
—
—
VOL
0.0
0.0
0.0
—
0.1
0.1
0.1
0.26
0.26
±0.5
0.1
0.1
0.1
0.33
0.33
±5.0
V
Vin = VIH or VIL IOL = 20 µA
—
—
—
—
—
—
IOL = 6 mA
—
—
—
IOL = 7.8 mA
Off-state output
current
IOZ
—
—
—
µA Vin = VIH or VIL,
Vout = VCC or GND
Input current
Iin
6.0
6.0
—
—
—
—
±0.1
—
—
±1.0
µA Vin = VCC or GND
Quiescent supply
current
ICC
4.0
40
µA Vin = VCC or GND, Iout = 0 µA
Rev.2.00 Mar 30, 2006 page 6 of 7
HD74HC442, HD74HC443, HD74HC444
Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Typ Max
Ta = –40 to +85°C
Item
Propagation delay
time
Symbol VCC (V)
Unit
Test Conditions
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
250
50
tPLH
tPHL
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
—
—
—
—
—
—
—
—
—
—
—
—
—
5
200
40
ns
34
43
Output enable
time
tZH
tZL
150
30
190
38
ns
ns
ns
pF
26
33
Output disable
time
tHZ
tLZ
150
30
190
38
26
33
Output rise/fall
time
tTLH
tTHL
60
75
12
15
10
13
Input capacitance
Cin
10
10
Package Dimensions
JEITA Package Code
RENESAS Code
PRSP0020DC-A
Previous Code
FP-20DBV
MASS[Typ.]
0.52g
P-SOP20-7.5x12.8-1.27
*1
D
NOTE)
20
11
1. DIMENSIONS"*1 (Nom)"AND"*2"
@ DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
@ INCLUDE TRIM OFFSET.
bp
Index mark
Terminal cross section
( Ni/Pd/Au plating )
Dimension in Millimeters
Reference
Symbol
Min Nom Max
1
D
E
12.80 13.2
7.50
Z
M
L1
A2
A1
A
bp
b1
c
0.10 0.20 0.30
2.65
0.34 0.40 0.46
0.20 0.25 0.30
c1
θ
0° 8°
10.00 10.40 10.65
L
y
HE
e
x
1.27
0.12
0.15
Detail F
y
Z
L
L1
0.935
0.40 0.70 1.27
1.45
Rev.2.00 Mar 30, 2006 page 7 of 7
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