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参数资料
| 型号： | SP485EN-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS485 |
| 电源电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
| 其它名称： | SP485EN-L/TR-ND |
3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP483_SP485_0_0627
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
SP485 DRIVER (continued)
AC Characteristics
Driver Enable to Output High
40
70
ns
C
L = 100pF, see figures 4 and 6,
S
2 closed
Driver Enable to Output Low
40
70
ns
C
L = 100pF, see figures 4 and 6,
S
closed
Driver Disable Time from High
40
70
ns
C
L = 15pF, see figures 2 and 8,
S
2 closed
Driver Disable Time from Low
40
70
ns
C
L = 15pF, see figures 2 and 8,
S
closed
SP483/SP485 RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ +12V
Input Hysteresis
0
mV
V
CM = 0V
Output Voltage High
2.4
5
Volts
I
O = -4mA, VID = +200mV
Output Voltage Low
0.0
0.4
Volts
I
O = +4mA, VID = -200mV
Three-State ( High Impedance)
Output Current
+/-
A
0.4V ≤ V
O ≤ 2.4V; RE = 5V
Input Resistance
2
5
k
-7V ≤ V
CM ≤ +12V
Input Current (A, B); V
IN = 2V
+.0
mA
DE = 0V, V
CC = 0V or 5.25V,
V
IN = 2V
Input Current (A, B); V
IN = -7V
-0.8
mA
DE = 0V, V
CC = 0V or 5.25V,
V
IN = -7V
Short-Circuit Current
95
mA
0V ≤ V
CM ≤ VCC
SP485 RECEIVER
AC Characteristics
Maximum Data Rate
5
Mbps RE = 0V, DE = 0V
Receiver Input to Output
20
45
200
ns
t
PLH ; Figures 3 and 7,
R
DIFF = 54, CL = CL2 = 00pF
Receiver Input to Output
20
45
200
ns
t
PHL ; Figures 3 and 7,
R
DIFF = 54, CL = CL2 = 00pF
Differential Receiver Skew
|t
PHL - tPLH|
3
ns
R
DIFF = 54, CL = CL2 = 00pF,
Figures 3 and 7
Receiver Enable to Output Low
45
70
ns
C
RL = 5pF, Figures 2 and 8;
S
Closed
Receiver Enable to Output High
45
70
ns
C
RL = 5pF, Figures 2 and 8;
S
2 Closed
Receiver Disable from LOW
45
70
ns
C
RL = 5pF, Figures 2 and 8;
S
Closed
Receiver Disable from High
45
70
ns
C
RL = 5pF, Figures 2 and 8;
S
2 Closed
ELECTRICAL CHARACTERISTICS
T
MIN to TMAX and VCC = 5V +/-5% unless otherwise noted.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP485ES | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Power Half-Duplex RS-485 Transceivers |
| SP485ES-L | 功能描述:RS-485接口IC RS485 5000 kbps temp -40C to 85C RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SP485R | 制造商:EXAR 制造商全称:EXAR 功能描述:1/10th Unit Load RS-485 Transceiver |
| SP485RCN | 制造商:Exar Corporation 功能描述: |
| SP485RCN/TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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