參數(shù)資料
型號(hào): SP1485EEN-L/TR
廠商: Exar Corporation
文件頁(yè)數(shù): 4/8頁(yè)
文件大小: 0K
描述: IC TXRX RS485 DIFF ESD 8SOIC
標(biāo)準(zhǔn)包裝: 2,500
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.25 V ~ 5.25 V
安裝類(lèi)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)
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP48E-485E_03_05243
4
pin FUnction
Pin1–RO–ReceiverOutput.
Pin2–RE–ReceiverOutputEnableActiveLOW.
Pin3–DE–DriverOutputEnableActiveHIGH.
Pin4–DI–DriverInput.
Pin5–GND–GroundConnection.
Pin6–A–DriverOutput/ReceiverInputNon-inverting.
Pin7–B–DriverOutput/ReceiverInputInverting.
Pin8–Vcc–PositiveSupply4.75V<Vcc<5.25V.
SP48E and SP485E
Pinout(TopView)
Figure5.DriverPropagationDelays
+3V
0V
DI
A
B
DRIVER
OUTPUT
VO+
DIFFERENTIAL
OUTPUT
VA –VB
0V
VO
1.5V
tPLH
tF
tR
f ≥1MHz; tR≤1ns; tF ≤1ns
VO 1/2VO
1/2VO
tPHL
Figure1.RS-485DriverDCTestLoadCircuit
Figure3.RS-485Driver/ReceiverTimingTestCircuit
C
L1
15pF
RO
A
B
A
B
DI
C
L2
R
DIFF
500
CL
Output
Under
Test
S1
S2
VCC
1k
CRL
Receiver
Output
S1
S2
Test Point
VCC
Figure2.ReceiverTimingTestLoadCircuit
Figure4.RS-485DriverTimingTestLoad#2Circuit
A
B
R
VOD
VOC
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