dm74als645a Fairchild Semiconductor, dm74als645a Datasheet - Page 2

• Manufacturer Part Number: dm74als645a
• Description: Dm74als645a Octal Bus Transceivers
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
V
V
V
I
I
I
I
I
V
V
V
I
I
T
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Over Recommended Free Air Temperature Range
I
IH
IL
O
CC
Note 2: For I/O ports, I
Switching Characteristics
Over Recommended Operating Free Air Temperature Range
Supply Voltage
Input Voltage;
Operating Free Air Temperature Range
Storage Temperature Range
Typical
OH
OL
Symbol
IC
OH
OL
A
Symbol
CC
IH
IL
Control Inputs
I/O Ports
N Package
M Package
Symbol
JA
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Output Enable Time to HIGH Level Output
Output Enable Time to LOW Level Output
Output Disable Time from HIGH Level Output
Output Disable Time from LOW Level Output
Input Clamp Voltage
HIGH Level Output Voltage
LOW Level Output Voltage
Input Current at
Maximum Input Voltage
HIGH Level Input Current
LOW Level Input Current
Output Drive Current
Supply Current
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Operating Free Air Temperature Range
IH
and I
Parameter
IL
Parameter
parameters include the 3-STATE output current (I
Parameter
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
65 C to 150 C
Min, I
4.5 to 5.5V
Max
Min
Max
Max, V
Max, V
Max, V
Max
(Note 1)
0 C to 70 C
I
53.0 C/W
72.0 C/W
I
I
O
(Input)
A or B
A or B
From
18 mA
2.7V (Note 2)
0.4V (Note 2)
G
G
G
G
2.25V
Test Conditions
5.5V
7V
7V
2
(Output)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
OZL
B or A
B or A
A or B
A or B
A or B
A or B
To
I
Control Inputs, V
I
I
I
I
I/O Ports, V
Outputs HIGH
Outputs LOW
Outputs Disabled
OH
OH
OH
OL
OL
and I
12 mA
24 mA
OZH
Max
Min
0.4 mA
4.5
3 mA
V
C
R1
2
0
).
CC
L
I
50 pF,
R2
4.5 to 5.5V,
5.5V
Conditions
I
500
7V
Typ
5
V
CC
Min
2.4
2
30
2
0.25
0.35
Typ
Max
3.2
30
36
38
Min
5.5
0.8
24
70
3
3
5
5
2
4
15
Max
100
100
0.4
0.5
55
58
Max
20
100
112
45
1.5
10
10
20
20
10
15
Units
mA
mA
V
V
V
C
Units
Units
mA
mA
V
V
V
ns
ns
ns
ns
ns
ns
A
A
A