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參數(shù)資料
| 型號(hào)： | SP4082EEN-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/RS422 8NSOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 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： | 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) |
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)6687000 Fax (50)668-707 www.exar.com
SP4082E_00_22007
2
DESCRIPTION
tion against short circuits over the whole com-
mon-mode voltage range. Second, a thermal-
shutdown circuit forces the driver outputs into
a high-impedance state if junction temperature
becomes excessive.
LINE LENGTH, EMI, AND REFLECTIONS
It features controlled slew-rate drivers that mini-
mize EMI and reduce reflections caused by im-
properly terminated cables.
Driver rise and fall times are limited to no faster
than 667ns, allowing error-free data transmis-
sion up to 5kbps.
The RS-485/RS-422 standard covers line
lengths up to 4,000ft. Maximum achievable
line length is a function of signal attenuation
and noise. Use of slew-controlled drivers may
help to reduce crosstalk interference and permit
communication over longer transmission lines.
Termination prevents reflections by eliminating
the impedance mismatches on a transmission
line. Line termination is typically used if rise and
fall times are shorter than the round-trip signal
propagation time. Slew-limited drivers may re-
duce or eliminate the need for cable termination
in many applications.
H alf -D uplex N etwork
TYPICAL APPLICATIONS:
Half-Duplex Network
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP481EEP-L | IC TXRX RS484 HALF DUPLEX 8PDIP |
| SP483EEP-L | IC TXRX RS485 HALF DUPLEX 8PDIP |
| SP483ES-L | IC TXRX RS485 HALF DUPLEX 8PDIP |
| SP485REN-L/TR | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| SP487ES-L | IC DVR RS485/RS422 QUAD 16PDIP |
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