參數(shù)資料
型號(hào)： MAX3491E
廠商： Maxim Integrated Products, Inc.
元件分類： RS-485
英文描述： 3.3V-Powered, 【15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
中文描述： 3.3V供電、±15kV ESD保護(hù)、12Mbps、限擺率、真RS-485/RS-422收發(fā)器
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 231K
代理商： MAX3491E
M
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS -422 Transceivers
_______________________________________________________________________________________
3
mA
-250
250
±60
I
OSD
Driver Short-Circuit Output Current
mA
±8
I
OSR
Receiver Short-Circuit Output Current
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
OUT
= -7V
V
OUT
= 12V
0
≤
V
RO
≤
V
CC
IEC 1000-4-2 Air Discharge
IEC 1000-4-2 Contact Discharge
(MAX3483E, MAX3485E,
MAX3486E, MAX3491E)
CONDITIONS
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.3V ±0.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ns
ns
ns
7
7
23
23
-1.4
35
35
±8
t
PLH
t
PHL
t
PDS
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
|
t
PLH
- t
PHL
|
Driver Propagation-Delay Skew (Note 2)
DRIVER-OUTPUT ENABLE/DISABLE TIMES (MAX3485E/MAX3491E only)
ns
3
11
25
t
TD
Mbps
ns
12
1
15
22
Maximum Data Rate
Driver Differential Output Delay
Driver Differential Output Transition Time
ns
650
900
t
PSH
Driver-Output Enable Time from Shutdown to High Level
DRIVER SWITCHING CHARACTERISTICS—MAX3486E
(V
CC
= +3.3V, T
A
= +25°C.)
PARAMETER
ns
650
900
t
PSL
Driver-Output Enable Time from Shutdown to Low Level
ns
ns
35
35
80
80
t
PHZ
t
PLZ
Driver-Output Disable Time from High Level
Driver-Output Disable Time from Low Level
ns
ns
42
42
90
90
t
PZL
t
PZH
Driver-Output Enable Time to Low Level
Driver-Output Enable Time to High Level
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
R
L
= 27
, Figure 8
R
L
= 27
, Figure 8
R
L
= 27
, Figure 8
R
L
= 60
, Figure 7
R
L
= 110
, Figure 9
R
L
= 110
, Figure 10
R
L
= 110
, Figure 9
R
L
= 110
, Figure 10
R
L
= 110
, Figure 10
R
L
= 110
, Figure 9
CONDITIONS
DRIVER SWITCHING CHARACTERISTICS—MAX3485E/MAX3490E/MAX3491E
(V
CC
= +3.3V, T
A
= +25°C.)
ns
ns
40
700
80
t
PLZ
t
PSL
Driver-Output Disable Time from Low Level
Driver-Output Enable Time from Shutdown to Low Level
R
L
= 110
, Figure 10
R
L
= 110
, Figure 10
ns
ns
ns
20
20
42
42
-6
75
75
±12
t
PLH
t
PHL
t
PDS
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
|
t
PLH
- t
PHL
|
Driver Propagation-Delay Skew (Note 2)
DRIVER-OUTPUT ENABLE/DISABLE TIMES
ns
15
28
60
t
TD
Mbps
ns
2.5
20
Maximum Data Rate
Driver Differential Output Delay
Driver Differential Output Transition Time
ns
700
1000
t
PSH
Driver-Output Enable Time from Shutdown to High Level
1000
ns
40
80
t
PHZ
Driver-Output Disable Time from High Level
ns
52
100
t
PZH
Driver-Output Enable Time to High Level
UNITS
MIN
TYP
MAX
SYMBOL
R
L
= 27
, Figure 8
R
L
= 27
, Figure 8
R
L
= 27
, Figure 8
R
L
= 60
, Figure 7
R
L
= 110
, Figure 9
R
L
= 110
, Figure 9
R
L
= 110
, Figure 9
CONDITIONS
±15
±6
IEC 1000-4-2 Contact Discharge
(MAX3490E, MAX3488E)*
±8
35
t
DD
R
L
= 60
, Figure 7
42
70
t
DD
R
L
= 60
, Figure 7
ESD Protection for Y, Z, A, B
±15
Human Body Model
kV
*
MAX3488E and MAX3491E will be compliant to ±8kV per IEC 1000-4-2 Contact Discharge by September 1999.
ns
52
100
t
PZL
Driver-Output Enable Time to Low Level
R
L
= 110
, Figure 10
相關(guān)PDF資料
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