IOSR 0V ≤ VO
參數(shù)資料
型號： ISL81485IU
廠商： Intersil
文件頁數(shù)： 6/11頁
文件大小： 0K
描述： IC TXRX RS485/422 5V HS 8-MSOP
標準包裝： 98
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： RS422，RS485
電源電壓： 4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 8-MSOP
包裝： 管件
4
Receiver Short-Circuit Current
IOSR
0V
≤ VO ≤ VCC
Full
7
-
85
mA
SWITCHING CHARACTERISTICS
Driver Input to Output Prop Delay
tPLH, tPHL RDIFF = 54, CL = 100pF (Figure 2)
Full
2
9
15
ns
Driver Prop Delay Skew
tSKEW
RDIFF = 54, CL = 100pF (Figure 2)
Full
-
1
5
ns
Driver Differential Rise or Fall Time
tR, tF
RDIFF = 54, CL = 100pF (Figure 2)
Full
-
5
15
ns
Driver Enable to Output High
tZH
CL = 50pF, SW = GND (Figure 3)
Full
-
9
25
ns
Driver Enable to Output Low
tZL
CL = 50pF, SW = VCC (Figure 3)
Full
-
9
25
ns
Matched Enable Switching
|tAZH - tBZL| or |tBZH - tAZL|
tEN
(Figure 3)
Full
-
1
3
ns
Driver Disable from Output High
tHZ
CL = 50pF, SW = GND (Figure 3)
Full
-
9
25
ns
Driver Disable from Output Low
tLZ
CL = 50pF, SW = VCC (Figure 3)
Full
-
9
25
ns
Matched Disable Switching
|tAHZ - tBLZ| or |tBHZ - tALZ|
t
DIS
(Figure 3)
Full
-
2
5
ns
Driver Maximum Data Rate
fMAXD
|VOD| ≥ 1.5V (Figure 4)
Full
30
-
Mbps
Receiver Input to Output Prop
Delay
tPLH, tPHL (Figure 5)
Full
8
17
30
ns
Receiver Prop Delay Skew
| tPLH - tPHL |
tSKD
(Figure 5)
Full
-
1
5
ns
Receiver Enable to Output High
tZH
CL = 15pF, SW = GND (Figure 6)
Full
-
7
20
ns
Receiver Enable to Output Low
tZL
CL = 15pF, SW = VCC (Figure 6)
Full
-
7
20
ns
Receiver Disable from Output High
tHZ
CL = 15pF, SW = GND (Figure 6)
Full
-
7
20
ns
Receiver Disable from Output Low
tLZ
CL = 15pF, SW = VCC (Figure 6)
Full
-
7
20
ns
Receiver Maximum Data Rate
fMAXR
CL = 15pF, VID ≥ 1.5V, RO tH and tL ≥ 20ns
Full
30
-
Mbps
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. Devices meeting these limits are denoted as “1 unit load (UL)” transceivers. The RS-485 standard allows up to 32 Unit Loads on the bus, so a
1UL transceiver permits > 32 devices on the bus.
Test Circuits and Waveforms
FIGURE 1A. VOD AND VOC
FIGURE 1B. VOD WITH COMMON MODE LOAD
FIGURE 1. DC DRIVER TEST CIRCUITS
Electrical Specifications
Test Conditions: VCC = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are at VCC = 5V, TA = 25oC,
Note 2 (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(oC)
MIN
TYP
MAX
UNITS
D
DE
DI
VCC
VOD
VOC
R
Z
Y
D
DE
DI
VCC
VOD
375
375
Z
Y
RD = 60
VCM
-7V to +12V
ISL81485
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