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參數(shù)資料
| 型號： | SP485REN-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| 標準包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS485 |
| 電源電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP485R_00_072309
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
V
CC.......................................................................+7V
Storage Temperature.......................-65C to +150C
ELECTRICAL CHARACTERISTICS
Typically 25C @ V
CC = +5V unless otherwise noted.
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
LOGIC INPUTS
V
IL
0.8
Volts
V
IH
2.0
Volts
LOGIC OUTPUTS
V
OL
0.4
Volts
I
OUT = -3.2mA
V
OH
2.4
Volts
I
OUT = .0mA
RS-485 DRIVER DC Characteristics
Open Circuit Voltage
6.0
Volts
Differential Output Voltage
.5
5.0
Volts
R
L = 54, CL = 50pF
Balance
+/-0.2
Volts
|V
T| - |VT|
Common-Mode Output
3.0
Volts
Output Current
28.0
mA
R
L = 54
Short Circuit Current
+/-250
mA
Terminated in -7V to +2V
RS-485 DRIVER AC Characteristics
Maximum Data Rate
5
Mbps
R
L = 54,
Output Transition Time
30
ns
Rise/fall time, 0% to 90%
Propagation Delay, t
PLH
60
00
ns
See Figures 4 & 6, R
DIFF = 54,
C
L = CL2 = 00pF
Propagation Delay, t
PHL
60
00
ns
See Figures 4 & 6, R
DIFF = 54,
C
L = CL2 = 00pF
Driver Output Skew
5
ns
see Figures 4 and 6,
t
SKEW = |tDPHL - tDPLH|
RS-485 RECEIVER DC Characteristics
Output Voltage Low, V
OL
0.4
Volts
Output Voltage High, V
OH
2.4
Volts
Tri-State Output Current
+/-
A
0.4V ≤ V
OUT ≤ 2.4V; RE = Vcc
Power Dissipation
8-pin NSOIC.................................................000mW
(
JA = 62C/W)
8-pin PDIP....................................................000mW
(
JA = 62C/W)
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