參數(shù)資料
型號(hào): SN74LVCH245AGQNR
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
中文描述: 八路總線收發(fā)器與三態(tài)輸出
文件頁(yè)數(shù): 5/27頁(yè)
文件大?。?/td> 1079K
代理商: SN74LVCH245AGQNR
www.ti.com
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
SN54LVCH245A, SN74LVCH245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCES008O–JULY 1995–REVISED DECEMBER 2005
SN54LVCH245A
MIN
TYP
(1)
SN74LVCH245A
MIN
TYP
(1)
V
– 0.2
PARAMETER
TEST CONDITIONS
V
CC
UNIT
MAX
MAX
1.65 V to 3.6 V
I
OH
= –100
μ
A
V
– 0.2
2.7 V to 3.6 V
I
OH
= –4 mA
I
OH
= –8 mA
1.65 V
2.3 V
2.7 V
3 V
3 V
1.2
1.7
2.2
2.4
2.2
V
OH
V
2.2
2.4
2.2
I
OH
= –12 mA
I
OH
= –24 mA
1.65 V to 3.6 V
2.7 V to 3.6 V
1.65 V
2.3 V
2.7 V
3 V
3.6 V
0
0.2
I
OL
= 100
μ
A
0.2
I
OL
= 4 mA
I
OL
= 8 mA
I
OL
= 12 mA
I
OL
= 24 mA
V
I
= 0 to 5.5 V
V
I
or V
O
= 5.5 V
V
I
= 0.58 V
V
I
= 1.07 V
V
I
= 0.7 V
V
I
= 1.7 V
V
I
= 0.8 V
V
I
= 2 V
V
I
= 0 to 3.6 V
(2)
V
O
= 0 V or (V
CC
to 5.5 V)
V
I
= V
CC
or GND
3.6 V
V
I
5.5 V
(4)
One input at V
– 0.6 V,
Other inputs at V
CC
or GND
V
I
= V
CC
or GND
V
O
= V
CC
or GND
0.45
0.7
0.4
0.55
±
5
±
10
V
OL
V
0.4
0.55
±
5
I
I
I
off
Control inputs
μ
A
μ
A
25
1.65 V
–25
45
–45
75
–75
2.3 V
I
I(hold)
μ
A
75
3 V
–75
3.6 V
±
500
±
15
±
500
I
OZ(3)
2.3 V to 3.6 V
±
5
10
10
μ
A
10
10
I
CC
I
O
= 0
3.6 V
μ
A
I
CC
2.7 V to 3.6 V
500
500
μ
A
C
i
C
io
Control inputs
A or B port
3.3 V
3.3 V
4
12
12
4
pF
pF
5.5
5.5
(1)
(2)
(3)
All typical values are at V
= 3.3 V, T
= 25
°
C.
This is the bus-hold maximum dynamic current required to switch the input from one state to another.
For the total leakage current in an I/O port, please consult the I
specification for the input voltage condition 0 V < V
< V
, and the
I
specification for the input voltage conditions V
I
= 0 V or V
I
= V
CC
to 5.5 V. The bus-hold current, at input voltage greater than V
CC
, is
negligible.
This applies in the disabled state only.
(4)
5
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