參數(shù)資料
型號: HWD490EPA
廠商: Electronic Theatre Controls, Inc.
元件分類: RS-485
英文描述: Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers
中文描述: 低功耗,限擺率限制RS-485/RS-422收發(fā)器
文件頁數(shù): 3/20頁
文件大?。?/td> 502K
代理商: HWD490EPA
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
SWITCHING CHARACTERISTICS—
HWD
481/
HWD
485,
HWD
490/
HWD
491,
HWD
1487
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
mA
7
95
0V
V
O
V
CC
I
OSR
Receiver Short-Circuit Current
mA
35
250
-7V
V
O
12V (Note 4)
I
OSD2
Driver Short-Circuit Current,
V
O
= Low
mA
35
250
-7V
V
O
12V (Note 4)
I
OSD1
Driver Short-Circuit Current,
V
O
= High
HWD1487,
RE
= 0V or V
CC
250
120
400
250
350
650
ns
10
30
5
15
15
15
40
60
10
40
25
40
70
t
PHL
t
SKEW
Driver Rise or Fall Time
Figures 6 and 8, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
HWD481, HWD485, HWD1487
Figures 6 and 8,
R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 7 and 9, C
L
= 100pF, S2 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 7 and 9, C
L
= 15pF, S1 closed
Figures 7 and 9, C
L
= 15pF, S2 closed
ns
ns
HWD490M, HWD491M
HWD490C/E, HWD491C/E
20
20
90
90
150
200
HWD481, HWD485, HWD1487
HWD490M, HWD491M
HWD490C/E, HWD491C/E
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
HWD481 (Note 5)
Figures 5 and 11, C
RL
= 15pF, S2 closed
Figures 5 and 11, C
RL
= 15pF, S1 closed
Figures 5 and 11, C
RL
= 15pF, S2 closed
Figures 5 and 11, C
RL
= 15pF, S1 closed
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 6 and 10,
R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
CONDITIONS
ns
ns
50
200
600
t
SHDN
Time to Shutdown
Mbps
2.5
f
MAX
Maximum Data Rate
ns
20
50
t
HZ
Receiver Disable Time from High
ns
10
30
60
t
PLH
20
50
t
LZ
Receiver Disable Time from Low
ns
20
50
t
ZH
Driver Input to Output
Receiver Enable to Output High
ns
20
50
t
ZL
Receiver Enable to Output Low
20
90
200
ns
ns
13
40
70
t
HZ
t
SKD
Driver Disable Time from High
|
t
PLH
- t
PHL
|
Differential
Receiver Skew
40
70
t
LZ
Driver Disable Time from Low
ns
40
70
t
ZL
Driver Enable to Output Low
3
5
3
ns
ns
t
R
, t
F
Driver Output Skew to Output
t
PLH
, t
PHL
Receiver Input to Output
t
ZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
230
400
300
500
HWD481/HWD485,
RE
= 0V or V
CC
500
300
900
500
HWD490/HWD491,
DE, DI,
RE
= 0V or V
CC
300
500
HWD488/HWD489,
DE, DI,
RE
= 0V or V
CC
120
250
DE = V
CC
DE = 0V
DE = V
CC
DE = 0V
μA
HWD481/483/487, DE = 0V,
RE
= V
CC
0.1
10
I
SHDN
Supply Current in Shutdown
I
CC
No-Load Supply Current
(Note 3)
DE = 5V
DE = 0V
HWD483
HWD487
HWD483/HWD487,
RE
= 0V or V
CC
μA
3
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