參數(shù)資料
型號: 74ACTQ245FC
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 總線收發(fā)器
英文描述: ACT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20
封裝: CERPACK-20
文件頁數(shù): 5/10頁
文件大小: 207K
代理商: 74ACTQ245FC
DC Characteristics for ’ACTQ Family Devices (Continued)
74ACTQ
54ACTQ
74ACTQ
Symbol
Parameter
VCC
TA ea25 C
TA e
Units
Conditions
(V)
b
55 Cto a125 C
b
40 Cto a85 C
Typ
Guaranteed Limits
IOZT
Maximum TRI-STATE
55
g
03
g
55
g
30
m
A
VI e VIL VIH
Leakage Current
VO e VCC GND
ICCT
Maximum
55
06
16
15
mA
VI e VCC b 21V
ICC Input
IOLD
Minimum Dynamic
55
50
75
mA
VOLD e 165V Max
IOHD
Output Current
55
b
50
b
75
mA
VOHD e 385V Min
ICC
Maximum Quiescent
55
40
800
400
m
A
VIN e VCC
Supply Current
or GND (Note 1)
VOLP
Quiet Output
50
11
15
V
Figures 2-12 13
Maximum Dynamic VOL
(Notes 2 3)
VOLV
Quiet Output
50
b
06
b
12
V
Figures 2-12 13
Minimum Dynamic VOL
(Notes 2 3)
VIHD
Minimum High Level
50
19
22
V
(Notes 2 4)
Dynamic Input Voltage
VILD
Maximum Low Level
50
12
08
V
(Notes 2 4)
Dynamic Input Voltage
Maximum test duration 20 ms one output loaded at a time
Note 1
ICC for 54ACTQ
25 C is identical to 74ACTQ
25 C
Note 2
Plastic DIP package
Note 3
Max number of outputs defined as (n) nb1 Data Inputs are driven 0V to 3V one output
GND
Note 4
Max number of Data Inputs (n) switching (nb1) Inputs switching 0V to 3V (’ACTQ) Input-under-test switching 3V to threshold (VILD) 0V to threshold
(VIHD)f e 1 MHz
AC Electrical Characteristics
74ACQ
54ACQ
74ACQ
VCC
TA ea25 C
TA eb55 CTA eb40 C
Symbol
Parameter
(V)
CL e 50 pF
to a125 Cto a85 C
Units
CL e 50 pF
Min
Typ
Max
Min
Max
Min
Max
tPHL tPLH
Propagation Delay
33
20
75
100
10
115
20
105
ns
Data to Output
50
15
50
65
10
85
15
70
tPZL tPZH
Output Enable Time
33
30
85
130
10
130
30
135
ns
50
20
60
85
10
100
20
90
tPHZ tPLZ
Output Disable Time
33
10
85
145
10
130
10
150
ns
50
10
75
95
10
100
10
100
tOSHL
Output to Output
33
10
15
ns
tOSLH
Skew
50
05
10
Data to Output
Voltage Range 50 is 50V g05V
Voltage Range 33 is 33V g03V
Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device The specification
applies to any outputs switching in the same direction either HIGH to LOW (tOSHL) or LOW to HIGH (tOSLH) Parameter guaranteed by design
4
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