參數(shù)資料
型號： 74ABT16245CSSC
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： 16-Bit Transceiver with 3-STATE Outputs
中文描述： ABT SERIES, DUAL 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO48
封裝： 0.300 INCH, MO-118, SSOP-48
文件頁數(shù)： 4/8頁
文件大小： 102K
代理商： 74ABT16245CSSC
www.fairchildsemi.com
4
7
DC Extended Electrical Characteristics
Note 4:
Max number of outputs defined as (n). n 1 data inputs are driven 0V to 3V. One output at LOW. Guaranteed, but not tested.
Note 5:
Max number of outputs defined as (n). n 1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested.
Note 6:
Max number of data inputs (n) switching. n 1 inputs switching 0V to 3V. Input-under-test switching: 3V to threshold (V
ILD
), 0V to threshold (V
IHD
).
Guaranteed, but not tested.
AC Electrical Characteristics
Extended AC Electrical Characteristics
Note 7:
This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase
(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.).
Note 8:
This specification is guaranteed but not tested. The limits represent propagation delay with 250 pF load capacitors in place of the 50 pF load capac-
itors in the standard AC load. This specification pertains to single output switching only.
Note 9:
This specification is guaranteed but not tested. The limits represent propagation delays for all paths described switching in phase
(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.) with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load.
Note 10:
3-STATE delay are dominated by the RC network (500
:
, 250 pF) on the output and have been excluded from the datasheet.
Symbol
Parameter
Min
Typ
Max
Units
V
CC
Conditions
C
L
50 pF; R
L
500
:
T
A
25
q
C (Note 4)
T
A
25
q
C (Note 4)
T
A
25
q
C (Note 5)
T
A
25
q
C (Note 5)
T
A
25
q
C (Note 6)
V
OLP
V
OLV
V
OHV
V
IHD
V
ILD
Quiet Output Maximum Dynamic V
OL
Quiet Output Minimum Dynamic V
OL
Minimum HIGH Level Dynamic Output Voltage
0.5
1.0
3.0
0.9
V
V
V
5.0
5.0
5.0
1.4
2.5
Minimum HIGH Level Dynamic Input Voltage
Maximum LOW Level Dynamic Input Voltage
2.0
1.4
1.2
V
V
5.0
5.0
0.8
Symbol
Parameter
T
A
25
q
C
V
CC
5V
C
L
50 pF
Typ
2.4
2.8
T
A
55
q
C to 125
q
C
V
CC
4.5V – 5.5V
C
L
50 pF
Min
0.5
0.5
T
A
40
q
C to 85
q
C
V
CC
4.5V – 5.5V
C
L
50 pF
Min
1.0
1.0
Units
Min
1.0
1.0
Max
3.9
3.9
Max
4.5
5.2
Max
3.9
3.9
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation
Delay Data to Outputs
ns
Output Enable
Time
Output Disable
1.5
1.5
1.3
3.6
3.7
4.6
6.3
6.3
6.9
0.8
0.9
1.3
6.4
6.9
6.9
1.5
1.5
1.3
6.3
6.3
6.9
ns
ns
Time
1.3
3.7
6.9
1.0
6.9
1.3
6.9
Symbol
Parameter
T
A
40
q
C to 85
q
C
V
CC
4.5V–5.5V
C
L
50 pF
16 Outputs Switching
(Note 7)
Min
Typ
100
1.5
1.5
T
A
40
q
C to 85
q
C
V
CC
4.5V–5.5V
C
L
250 pF
1 Output Switching
(Note 8)
Min
T
A
40
q
C to 85
q
C
V
CC
4.5V–5.5V
C
L
250 pF
16 Outputs Switching
(Note 9)
Min
Units
Max
Max
Max
f
TOGGLE
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Maximum Toggle Frequency
Propagation Delay
Data to Outputs
MHz
5.0
5.3
1.5
1.5
6.0
6.0
2.5
2.5
8.0
8.0
ns
Output Enable
1.5
1.5
1.0
6.5
6.5
6.9
2.5
2.5
8.2
8.2
2.5
2.5
10.0
9.0
ns
Time
Output Disable
(Note 10)
(Note 10)
ns
Time
1.0
6.9
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