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參數(shù)資料
| 型號： | ISL8487 |
| 廠商： | Intersil Corporation |
| 英文描述： | 1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers(1/8 單位負(fù)載、5V、小功率、高速或帶有限斜率功能的RS-485/RS-422收發(fā)器) |
| 中文描述： | 1 / 8單位負(fù)載，5V，低功耗，高速或擺率限制，RS-485/RS-422收發(fā)器（1 / 8單位負(fù)載，5V的，小功率，高速或帶有限斜率功能的RS-485/RS -422收發(fā)器） |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 453K |
| 代理商： | ISL8487 |
6
FN6050.7
July 31, 2006
Driver Enable from Shutdown to
Output High
t
ZH(SHDN)
C
L
= 100pF, SW = GND, (Figure 3, Notes 7, 8)
Full
-
1000
2000
ns
Driver Enable from Shutdown to
Output Low
t
ZL(SHDN)
C
L
= 100pF, SW = V
CC
, (Figure 3, Notes 7, 8)
Full
-
1000
2000
ns
Receiver Enable from Shutdown to
Output High
t
ZH(SHDN)
C
L
= 15pF, SW = GND, (Figure 5, Notes 7, 9)
Full
-
800
2500
ns
Receiver Enable from Shutdown to
Output Low
t
ZL(SHDN)
C
L
= 15pF, SW = V
CC
, (Figure 5, Notes 7, 9)
Full
-
800
2500
ns
NOTES:
2. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless
otherwise specified.
3. Supply current specification is valid for loaded drivers when DE = 0V.
4. Applies to peak current. See “Typical Performance Curves” for more information.
5. When testing the ISL8487 and ISL81483, keep RE = 0 to prevent the device from entering SHDN.
6. When testing the ISL8487 and ISL81483, the RE signal high time must be short enough (typically <200ns) to prevent the device from entering
SHDN.
7. The ISL8487 and ISL81483 are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 50ns, the parts are
guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are guaranteed to have entered shutdown. See
“Low-Power Shutdown Mode” section.
8. Keep RE = V
CC
, and set the DE signal low time >600ns to ensure that the device enters SHDN.
9. Set the RE signal high time >600ns to ensure that the device enters SHDN.
10. Devices meeting these limits are denoted as “1/8 unit load (1/8 UL)” transceivers. The RS-485 standard allows up to 32 Unit Loads on the bus,
so there can be 256 1/8 UL devices on a bus.
11. Devices meeting these limits are denoted as “1/4 unit load (1/4 UL)” transceivers. The RS-485 standard allows up to 32 Unit Loads on the bus,
so there can be 128 1/4 UL devices on a bus.
Test Circuits and Waveforms
FIGURE 1. DRIVER V
OD
AND V
OC
Electrical Specifications
Test Conditions: V
CC
= 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at V
CC
= 5V, T
A
= 25°C,
(Note 2)
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(
°
C)
MIN
TYP
MAX
UNITS
D
DE
DI
V
CC
V
OD
V
OC
R
R
Z
Y
ISL8487, ISL81483, ISL81487
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL81485IU | 5V, 30Mbps, RS-485/RS-422 Transceiver |
| ISL81485IB | 5V, 30Mbps, RS-485/RS-422 Transceiver |
| ISL81485IB-T | 5V, 30Mbps, RS-485/RS-422 Transceiver |
| ISL81485IU-T | 5V, 30Mbps, RS-485/RS-422 Transceiver |
| ISL81485 | 5V, 30Mbps, RS-485/RS-422 Transceiver(5V, 30Mbps, RS-485/RS-422收發(fā)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL8487_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL8487E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:【15kV ESD Protected, 1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL8487E_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:【15kV ESD Protected, 1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL8487EIB | 功能描述:RS-422/RS-485 接口 IC 5V TXRX ESD RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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