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參數(shù)資料
| 型號： | MAX490 |
| 廠商： | Maxim Integrated Products, 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、RS-485/RS-422收發(fā)器 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大?。?/td> | 439K |
| 代理商： | MAX490 |
M
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
4
_______________________________________________________________________________________
SWITCHING CHARACTERISTICS—MAX483, MAX487/MAX488/MAX489
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487 (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
300
1000
Figures 7 and 9, C
L
= 100pF, S2 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 5 and 11, C
L
= 15pF, S2 closed,
A - B = 2V
CONDITIONS
ns
40
100
t
ZH(SHDN)
Driver Enable from Shutdown to
Output High (MAX481)
ns
Figures 5 and 11, C
L
= 15pF, S1 closed,
B - A = 2V
t
ZL(SHDN)
Receiver Enable from Shutdown
to Output Low (MAX481)
ns
40
100
t
ZL(SHDN)
Driver Enable from Shutdown to
Output Low (MAX481)
ns
300
1000
t
ZH(SHDN)
Receiver Enable from Shutdown
to Output High (MAX481)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
t
PLH
t
PHL
t
SKEW
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Driver Input to Output
Driver Output Skew to Output
ns
100
800
ns
ns
2000
MAX483/MAX487, Figures 7 and 9,
C
L
= 100pF, S2 closed
MAX483/MAX487, Figures 7 and 9,
C
L
= 100pF, S1 closed
t
ZH(SHDN)
Driver Enable from Shutdown to
Output High
Driver Enable from Shutdown to
Output Low
250
2000
ns
2500
MAX483/MAX487, Figures 5 and 11,
C
L
= 15pF, S1 closed
t
ZL(SHDN)
Receiver Enable from Shutdown
to Output Low
ns
2500
MAX483/MAX487, Figures 5 and 11,
C
L
= 15pF, S2 closed
t
ZH(SHDN)
Receiver Enable from Shutdown
to Output High
ns
2000
t
ZL(SHDN)
ns
50
200
600
MAX483/MAX487 (Note 5)
t
SHDN
Time to Shutdown
t
PHL
t
PLH
, t
PHL
< 50% of data period
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 7 and 9, C
L
= 15pF, S2 closed
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 7 and 9, C
L
= 15pF, S1 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 7 and 9, C
L
= 100pF, S2 closed
CONDITIONS
kbps
250
f
MAX
250
800
2000
Maximum Data Rate
ns
20
50
t
HZ
Receiver Disable Time from High
ns
250
800
2000
20
50
t
LZ
Receiver Disable Time from Low
ns
20
50
t
ZH
Receiver Enable to Output High
ns
20
50
t
ZL
Receiver Enable to Output Low
ns
ns
100
300
250
3000
2000
t
HZ
t
PLH
t
SKD
Driver Disable Time from High
I
t
PLH
- t
PHL
I
Differential
Receiver Skew
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
ns
300
3000
t
LZ
Driver Disable Time from Low
ns
250
2000
t
ZL
Driver Enable to Output Low
ns
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
ns
250
2000
t
R
, t
F
Driver Rise or Fall Time
ns
Receiver Input to Output
250
2000
t
ZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4901EBL | 制造商:Maxim Integrated Products 功能描述:LOW-RON DUAL-SPST CLICKLESS SWITCH - Rail/Tube |
| MAX4901EBL+ | 制造商:Maxim Integrated Products 功能描述:LOW-RON DUAL-SPST CLICKLESS SWITCH - Rail/Tube |
| MAX4901EBL+T | 制造商:Maxim Integrated Products 功能描述:LOW-RON DUAL-SPST CLICKLESS SWITCH - Tape and Reel |
| MAX4901EBL-T | 功能描述:模擬開關 IC RoHS:否 制造商:Texas Instruments 開關數(shù)量:2 開關配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| MAX4901ETA | 制造商:Maxim Integrated Products 功能描述:LOW-RON DUAL-SPST CLICKLESS SWITCH - Rail/Tube |
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