KK74HCT244AN [KODENSHI]
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS; 八路三态同相缓冲器/线路驱动器/线接收器高性能硅栅CMOS
| 型号： | KK74HCT244AN |
| 厂家： | 
KODENSHI KOREA CORP. |
| 描述： | Octal 3-State Noninverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS |
| 文件： | 总6页 (文件大小：358K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TECHNICAL DATA
KK74HCT244A
Octal 3-State Noninverting
Buffer/Line Driver/Line Receiver
High-Performance Silicon-Gate CMOS
The KK74HCT244A is identical in pinout to the LS/ALS244. The
device may be used as a level converter for interfacing TTL or NMOS
outputs to High-Speed CMOS inputs.
The KK74HCT244A is an octal noninverting buffer/line driver/line
receiver designed to be used with 3-state memory address drivers, clock
drivers, and other bus-oriented systems. The device has non-inverted
outputs and two active-low output enables.
ORDERING INFORMATION
•
•
•
•
TTL/NMOS-Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA
KK74HCT244AN
Plastic
KK74HCT244ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Enable A,
Outputs
YA,YB
A,B
Enable B
L
L
H
L
H
X
L
H
Z
PIN 20=VCC
PIN 10 = GND
X=don’t care;Z = high impedance
1
KK74HCT244A
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
V
VCC
VIN
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
-0.5 to +7.0
-1.5 to VCC +1.5
-0.5 to VCC +0.5
V
VOUT
V
IIN
IOUT
ICC
PD
DC Input Current, per Pin
mA
mA
mA
mW
±20
±35
±75
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air, Plastic DIP**
750
500
SOIC Package**
Tstg
TL
Storage Temperature
-65 to +150
260
°C
°C
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
**Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Min
4.5
0
Max
5.5
Unit
V
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time (Figure 1)
VIN, VOUT
TA
VCC
+125
500
V
-55
0
°C
ns
tr, tf
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or
V
OUT)≤VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused
outputs must be left open.
2
KK74HCT244A
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol
Parameter
Test Conditions
VCC
V
Guaranteed Limit
Unit
25 °C
to
≤85
°C
≤125
°C
-55°C
VIH
VIL
Minimum High-
Level Input Voltage
VOUT= VCC-0.1 V
⎢IOUT⎢≤ 20 µA
4.5
5.5
2.0
2.0
2.0
2.0
2.0
2.0
V
V
V
Maximum Low -
Level Input Voltage
VOUT=0.1 V
⎢IOUT⎢ ≤ 20 µA
4.5
5.5
0.8
0.8
0.8
0.8
0.8
0.8
VOH
Minimum High-
Level Output Voltage
VIN=VIH
⎢IOUT⎢ ≤ 20 µA
4.5
5.5
4.4
5.4
4.4
5.4
4.4
5.4
VIN=VIH
4.5
3.98
3.84
3.7
⎢IOUT⎢ ≤ 6.0 mA
VOL
Maximum Low-
Level Output Voltage
VIN= VIL
⎢IOUT⎢ ≤ 20 µA
4.5
5.5
0.1
0.1
0.1
0.1
0.1
0.1
V
VIN= VIL
4.5
5.5
0.26
0.1
0.33
1.0
0.4
1.0
⎢IOUT⎢ ≤6.0 mA
VIN=VCC
IIH
Minimum High-
Level Input Leakage
Current
µA
µA
µA
IIL
Maximum Low-
Level Input Leakage
Current
VIN=GND
5.5
5.5
-0.1
0.5
-1.0
5.0
-1.0
IOZH
Minimum High-
Level Three-State
Leakage Current
VIN(01) =VIH
VIN(19) =VIH
VIN =VСС (on other
outputs)
10.0
VOUT=VCC
IOZL
Maximum Low-
Level Three-State
Leakage Current
VIN(01) =VIH
VIN(19) =VIH
VIN =VСС (on other
outputs)
5.5
5.5
-0.5
-5.0
40
-10.0
160
µA
VOUT=GND
ICC
Maximum Quiescent VIL=GND
Supply Current
per Package)
4.0
µA
VIN=VCC
IOUT=0 µA
Additional Quiescent VIN=2.4 V, Any One Input
mA
∆ICC
≥-55°C
2.9
25°C to 125°C
Supply Current
VIN=VCC or GND, Other
Inputs
5.5
2.4
IOUT=0µA
NOTE: Total Supply Current = ICC + Σ∆ICC.
3
KK74HCT244A
AC ELECTRICAL CHARACTERISTICS (VCC =5.0 V ± 10%, CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
Test Conditions
VCC
Guaranteed Limit
Unit
ns
В
25 °C ≤85°C ≤125°
to
C
-55°C
tPLH, tPHL Maximum Propagation
Delay, A to YA or B to YB
(Figures 1 and 2)
VCC=5 V±10%
VIL=0 V
VIH=3 V
tLH=tHL=6 ns
CL=50 pF
5.0
5.0
5.0
5.0
20
26
22
12
25
33
28
15
30
tPLZ, tPHZ Maximum Propagation
Delay , Output Enable to
VCC=5 V±10%
VIL=0 V
39
33
18
ns
ns
ns
YA or YB (Figures 1 and 2) VIH=3 V
tLH=tHL=6 ns
CL=50 pF
tPZL, tPZH Maximum Propagation
Delay , Output Enable to
VCC=5 V±10%
VIL=0 V
YA or YB (Figures 1 and 2) VIH=3 V
tLH=tHL=6 ns
CL=50 pF
tTLH, tTHL Maximum Output Transition VCC=5 V±10%
Time, Any Output (Figures
1 and 2)
VIL=0 V
VIH=3 V
tLH=tHL=6 ns
CL=50 pF
CIN
Maximum Input Capacitance VCC=5 V±10%
5.0
5.0
10
15
10
15
10
15
pF
pF
COUT
Maximum Three-State
VCC=5 V±10%
Output Capacitance (Output
in High-Impedance State)
Power Dissipation Capacitance (Per Enabled Output)
Typical @25°C,VCC=5.0 V
CPD
Used to determine the no-load dynamic power
consumption:
55
pF
PD=CPDVCC2f+ICCVCC
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4
KK74HCT244A
Figure 3. Test Circuit
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
(1/8 of the Device)
5
KK74HCT244A
N SUFFIX PLASTIC DIP
(MS - 001AD)
A
Dimension, mm
11
10
20
1
Symbol MIN
MAX
26.92
7.11
B
24.89
6.1
A
B
C
D
F
5.33
0.36
1.14
0.56
F
L
1.78
2.54
7.62
G
H
J
C
SEATING
PLANE
-T-
K
N
0
10
°
°
M
J
G
H
D
2.92
7.62
0.2
3.81
8.26
0.36
K
L
M
N
0.25 (0.010) M
T
NOTES:
1. Dimensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
0.38
D SUFFIX SOIC
(MS - 013AC)
A
20
11
Dimension, mm
Symbol MIN
MAX
13
H
B
P
12.6
7.4
A
B
C
D
F
7.6
2.35
0.33
0.4
2.65
0.51
1.27
1
10
G
R x 45
C
-T-
SEATING
PLANE
1.27
9.53
G
H
J
K
M
D
J
F
M
0.25 (0.010) M T C
0
°
8
°
NOTES:
0.1
0.23
10
0.3
0.32
10.65
0.75
K
M
P
1. Dimensions A and B do not include mold flash or protrusion.
2. Maximum mold flash or protrusion 0.15 mm (0.006) per side
for A; for B 0.25 mm (0.010) per side.
‑
0.25
R
6
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