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參數(shù)資料
| 型號： | SP3483EN-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| 標(biāo)準(zhǔn)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： | 3.3V |
| 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) |
3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP3483_00_0092
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
DRIVER (continued)
AC Characteristics
Driver Enable to Output High
700
300
ns
Figures 4 and ,
Driver Enable to Output Low
690
300
ns
Figures 5 and
Driver Disable Time from High
80
20
ns
Figures 5 and
Driver Disable Time from Low
90
20
ns
Figures 4 and
RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ +12V
Input Hysteresis
20
mV
V
CM = 0V
Output Voltage High
Vcc-0.4
Volts
I
O = -.5mA, VID = +200mV
Output Voltage Low
0.4
Volts
I
O = +2.5mA, VID = -200mV
Three-State ( High Impedance)
Output Current
+/-
A
0V ≤ V
O ≤ Vcc; RE = Vcc
Input Resistance
2
5
k
-7V ≤ V
CM ≤ +12V
Input Current (A, B); V
IN = 2V
+.0
mA
DE = 0V, V
CC = 0V or 3.6V,
V
IN = 2V
Input Current (A, B); V
IN = -7V
-0.8
mA
DE = 0V, V
CC = 0V or 3.6V,
V
IN = -7V
Short Circuit Current
7
60
mA
0V ≤ V
CM ≤ VCC
RECEIVER
AC Characteristics
Max. Transmission Rate
250
kbps
RE = 0V, DE = 0V
Receiver Input to Output, t
RPLH
35
70
20
ns
Figures 6 and 2
Receiver Input to Output, t
RPHL
35
70
20
ns
Figures 6 and 2
Differential Receiver Skew
50
ns
|t
RPHL - tRPLH|, Figures 6 and 2
Receiver Enable to Output Low
45
70
ns
Figures 7 and 3; S
Closed, S2
open
Receiver Enable to Output High
45
70
ns
Figures 7 and 3; S
2 Closed, S
open
Receiver Disable from LOW
45
70
ns
Figures 7 and 3; S
Closed, S2
open
Receiver Disable from High
45
70
ns
Figures 7 and 3; S
2 Closed, S
open
ELECTRICAL CHARACTERISTICS
T
MIN to TMAX and VCC = +3.3V +/-5% unless otherwise noted.
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