DataSheet.jp

HWD483 の電気的特性と機能

HWD483のメーカーはETCです、この部品の機能は「(HWD481 - HWDxxx) Slew-Rate-Limited RS-485/RS-422 Transceivers」です。


製品の詳細 ( Datasheet PDF )

部品番号 HWD483
部品説明 (HWD481 - HWDxxx) Slew-Rate-Limited RS-485/RS-422 Transceivers
メーカ ETC
ロゴ ETC ロゴ 




このページの下部にプレビューとHWD483ダウンロード(pdfファイル)リンクがあります。
Total 20 pages

No Preview Available !

HWD483 Datasheet, HWD483 PDF,ピン配置, 機能
www.DataSheet4U.com
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
General Description
The HWD481, HWD483, HWD485, HWD487–HWD491, and
HWD1487 are low-power transceivers for RS-485 and RS-
422 communication. Each part contains one driver and one
receiver. The HWD483, HWD487, HWD488, and HWD489
feature reduced slew-rate drivers that minimize EMI and
reduce reflections caused by improperly terminated cables,
thus allowing error-free data transmission up to 250kbps.
The driver slew rates of the HWD481, HWD485, HWD490,
HWD491, and HWD1487 are not limited, allowing them to
transmit up to 2.5Mbps.
These transceivers draw between 120µA and 500µA of
supply current when unloaded or fully loaded with disabled
drivers. Additionally, the HWD481, HWD483, and HWD487
have a low-current shutdown mode in which they consume
only 0.1µA. All parts operate from a single 5V supply.
Drivers are short-circuit current limited and are protected
against excessive power dissipation by thermal shutdown
circuitry that places the driver outputs into a high-imped-
ance state. The receiver input has a fail-safe feature that
guarantees a logic-high output if the input is open circuit.
The HWD487 and HWD1487 feature quarter-unit-load
receiver input impedance, allowing up to 128 HWD487/
HWD1487 transceivers on the bus. Full-duplex communi-
cations are obtained using the HWD488–HWD491, while
the HWD481, HWD483, HWD485, HWD487, and HWD1487
are designed for half-duplex applications.
________________________Applications
Low-Power RS-485 Transceivers
Low-Power RS-422 Transceivers
Level Translators
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
__Next Generation Device Features
For Fault-Tolerant Applications
HWD3430: ±80V Fault-Protected, Fail-Safe, 1/4
Unit Load, +3.3V, RS-485 Transceiver
HWD3440E–HWD3444E: ±15kV ESD-Protected,
±60V Fault-Protected, 10Mbps, Fail-Safe,
RS-485/J1708 Transceivers
For Space-Constrained Applications
HWD3460–HWD3464: +5V, Fail-Safe, 20Mbps,
Profibus RS-485/RS-422 Transceivers
HWD3362: +3.3V, High-Speed, RS-485/RS-422
Transceiver in a SOT23 Package
HWD3280E–HWD3284E: ±15kV ESD-Protected,
52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422,
True Fail-Safe Receivers
HWD3293/HWD3294/HWD3295: 20Mbps, +3.3V,
SOT23, RS-855/RS-422 Transmitters
For Multiple Transceiver Applications
HWD3030E–HWD3033E: ±15kV ESD-Protected,
+3.3V, Quad RS-422 Transmitters
For Fail-Safe Applications
HWD3080–HWD3089: Fail-Safe, High-Speed
(10Mbps), Slew-Rate-Limited RS-485/RS-422
Transceivers
For Low-Voltage Applications
HWD3483E/HWD3485E/HWD3486E/HWD3488E/
HWD3490E/HWD3491E: +3.3V Powered, ±15kV
ESD-Protected, 12Mbps, Slew-Rate-Limited,
True RS-485/RS-422 Transceivers
Ordering Information appears at end of data sheet.
______________________________________________________________Selection Table
PART HALF/FULL DATA RATE SLEW-RATE LOW-POWER
NUMBER DUPLEX
(Mbps)
LIMITED SHUTDOWN
HWD481
Half
2.5
No Yes
HWD483
Half
0.25
Yes
Yes
HWD485
Half
2.5
No
No
HWD487
Half
0.25
Yes
Yes
HWD488
Full
0.25
Yes
No
HWD489
Full
0.25
Yes
No
HWD490
Full
2.5
No
No
HWD491
Full
2.5
No
No
HWD1487
Half
2.5
No
No
RECEIVER/
DRIVER
ENABLE
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
QUIESCENT
CURRENT
(µA)
300
120
300
120
120
120
300
300
230
NUMBER OF
TRANSMITTERS
ON BUS
32
32
32
128
32
32
32
32
128
PIN
COUNT
8
8
8
8
8
14
8
14
8
1

1 Page





HWD483 pdf, ピン配列
www.DataSheet4U.com
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
HWD488/HWD489,
DE, DI, RE = 0V or VCC
120 250
No-Load Supply Current
(Note 3)
Supply Current in Shutdown
Driver Short-Circuit Current,
VO = High
Driver Short-Circuit Current,
VO = Low
Receiver Short-Circuit Current
ICC
ISHDN
IOSD1
HWD490/HWD491,
DE, DI, RE = 0V or VCC
HWD481/HWD485,
RE = 0V or VCC
DE = VCC
DE = 0V
HWD1487,
RE = 0V or VCC
DE = VCC
DE = 0V
HWD483/HWD487,
RE = 0V or VCC
DE = 5V
DE = 0V
HWD483
HWD487
HWD481/483/487, DE = 0V, RE = VCC
-7V VO 12V (Note 4)
IOSD2
IOSR
-7V VO 12V (Note 4)
0V VO VCC
35
35
7
300 500
500 900
300 500
300 500
230 400
350 650
250 400
120 250
0.1 10
250
250
95
µA
µA
mA
mA
mA
SWITCHING CHARACTERISTICS—HWD481/HWD485, HWD490/HWD491, HWD1487
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Driver Input to Output
tPLH
tPHL
Figures 6 and 8, RDIFF = 54,
CL1 = CL2 = 100pF
10 30 60
10 30 60
Driver Output Skew to Output
tSKEW Figures 6 and 8, RDIFF = 54, CL1 = CL2 = 100pF
5 10
Driver Rise or Fall Time
tR, tF
Figures 6 and 8, HWD481, HWD485, HWD1487
RDIFF = 54,
HWD490C/E, HWD491C/E
CL1 = CL2 = 100pF HWD490M, HWD491M
3
5
3
15 40
15 25
15 40
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
tZH Figures 7 and 9, CL = 100pF, S2 closed
tZL Figures 7 and 9, CL = 100pF, S1 closed
tLZ Figures 7 and 9, CL = 15pF, S1 closed
40 70
40 70
40 70
Driver Disable Time from High
Receiver Input to Output
tHZ Figures 7 and 9, CL = 15pF, S2 closed
Figures 6 and 10, HWD481, HWD485, HWD1487
tPLH, tPHL RDIFF = 54,
HWD490C/E, HWD491C/E
CL1 = CL2 = 100pF HWD490M, HWD491M
20
20
20
40 70
90 200
90 150
90 200
| tPLH - tPHL | Differential
Receiver Skew
tSKD
Figures 6 and 10, RDIFF = 54,
CL1 = CL2 = 100pF
13
Receiver Enable to Output Low
tZL Figures 5 and 11, CRL = 15pF, S1 closed
Receiver Enable to Output High tZH Figures 5 and 11, CRL = 15pF, S2 closed
Receiver Disable Time from Low tLZ Figures 5 and 11, CRL = 15pF, S1 closed
Receiver Disable Time from High
tHZ Figures 5 and 11, CRL = 15pF, S2 closed
20 50
20 50
20 50
20 50
Maximum Data Rate
Time to Shutdown
fMAX
tSHDN HWD481 (Note 5)
2.5
50 200 600
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Mbps
ns
3


3Pages


HWD483 電子部品, 半導体
www.DataSheet4U.com
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
____________________________Typical Operating Characteristics (continued)
(VCC = 5V, TA = +25°C, unless otherwise noted.)
OUTPUT CURRENT vs.
DRIVER OUTPUT LOW VOLTAGE
140
120
OUTPUT CURRENT vs.
DRIVER OUTPUT HIGH VOLTAGE
-120
-100
HWD481/HWD485/HWD490/HWD491
SUPPLY CURRENT vs. TEMPERATURE
600
HWD481/HWD485; DE = VCC, RE = X
500
100
-80 400
80
-60 300
60 HWD485; DE = 0, RE = X,
40
-40
HWD481; DE = RE = 0
200 HWD490/HWD491; DE = RE = X
20
0
0
2 4 6 8 10
OUTPUT LOW VOLTAGE (V)
12
-20
0
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5
OUTPUT HIGH VOLTAGE (V)
100
HWD481; DE = 0, RE = VCC
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
HWD483/HWD487–HWD489
SUPPLY CURRENT vs. TEMPERATURE
600
HWD1487
SUPPLY CURRENT vs. TEMPERATURE
600
500 500
400 HWD483; DE = VCC, RE = X
300
HWD487; DE = VCC, RE = X
200 HWD483/HWD487; DE = RE = 0,
HWD488/HWD489; DE = RE = X
100
HWD483/HWD487; DE = 0, RE = VCC
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
400
300 HWD1487; DE = VCC, RE = X
200
HWD1487; DE = 0V, RE = X
100
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
6

6 Page



ページ 合計 : 20 ページ
 
PDF
ダウンロード
[ HWD483 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
HWD481

(HWD481 - HWDxxx) Slew-Rate-Limited RS-485/RS-422 Transceivers

ETC
ETC
HWD483

(HWD481 - HWDxxx) Slew-Rate-Limited RS-485/RS-422 Transceivers

ETC
ETC
HWD484

(HWD481 - HWDxxx) Slew-Rate-Limited RS-485/RS-422 Transceivers

ETC
ETC
HWD4863

Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Chengdu Sino Microelectronics System
Chengdu Sino Microelectronics System


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap