参数资料
| 型号： | SP3491EN-L |
| 厂商： | Exar Corporation |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 FULL DUPLX 14NSOIC |
| 标准包装： | 56 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS485 |
| 电源电压： | 3.3V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC（窄型） |
| 包装： | 管件 |
| 其它名称： | 1016-1149-5 |
5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP3490_349_02_0270
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
SP3491 RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ +12V
Input Hysteresis
25
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; REB = 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
60
mA
0V ≤ V
O ≤ VCC
SP3491 RECEIVER
AC Characteristics
Max. Transmission Rate
0
Mbps REB = 0V, DE = 0V
Receiver Input to Output, t
PLH
40
70
20
ns
Figures 6 and 2
Receiver Input to Output, t
PLH
85
ns
T
AMB = +25°C, Vcc = 3.3V, Figures
6 and 2
Receiver Input to Output, t
PHL
40
70
20
ns
Figures 6 and 2
Receiver Input to Output, t
PHL
85
ns
T
AMB = +25°C, Vcc = 3.3V, Figures
6 and 2
Differential Receiver Skew
4
ns
|t
PHL(A)- tPLH(A)|, |tPHL(B)- tPLH(B)|,
Figures 6 and 2
Receiver Enable to Output
LOW
65
50
ns
Figures 7 and 3; S
Closed, S2
open
Receiver Enable to Output
HIGH
65
50
ns
Figures 7 and 3; S
2 Closed, S
open
Receiver Disable from LOW
65
200
ns
Figures 7 and 3; S
Closed, S2
open
Receiver Disable from HIGH
65
200
ns
Figures 7 and 3; S
2 Closed, S
open
POWER REQUIREMENTS
Supply Voltage
+3.0
+3.6
V
Supply Current
000
2000
A
REB, D = 0V or V
CC; DE = VCC
Supply Current
800
500
A
DE = 0V
ESD Protection for R, D, DE,
REB, A, B, Y and Z pins
+/-2
kV
Human Body Model
ELECTRICAL CHARACTERISTICS
T
AMB = TMIN to TMAX and VCC = +3.3V +/-5% unless otherwise noted.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP3491EN-L/TR | 功能描述:RS-485接口IC 3.3V LoPwr Full-Dup RS485w/10Mbps Data 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 |
| SP3491EP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+3.3V Low Power Full Duplex RS-485 Transceivers with 10Mbps Data Rate |
| SP3493 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+3.3V Low Power RS-485/RS-422 Transceivers |
| SP3493CN | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers |
| SP3493CP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+3.3V Low Power RS-485/RS-422 Transceivers |
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