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參數(shù)資料
| 型號： | SP488ACT |
| 英文描述： | High Speed Quad RS-485/RS-422 Line Receivers |
| 中文描述： | 高速四線接收器的RS-485/RS-422 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大小： | 144K |
| 代理商： | SP488ACT |
SP488A/489ADS/07 SP488A/489A High Speed Quad RS-485/RS-422 Line Receivers
Copyright 2000 Sipex Corporation
5
P
SP489A PINOUT
Pin 1 — RI
1
B — Receiver 1 input B.
Pin 2 — RI
1
A —
Receiver 1 input A.
Pin 3 — RO
—
Receiver 1 Output — If Re-
ceiver 1 output is enabled, if RI
> RI
B by
200mV, Receiver output is high. If Receiver 1
output is enabled, and if RI
1
A
< RI
1
B
by 200mV,
Receiver 1 output is low.
Pin 4 — EN1/EN2 — Receiver 1 and 2 Output
Enable. Please refer to
SP489A
Truth Table (2)
.
Pin 5 — RO
— Receiver 2 Output — If Re-
ceiver 2 output is enabled, if RI
A > RI
B by
200mV, Receiver 2 output is high. If Receiver 2
output is enabled, and if RI
A < RI
2
B by
200mV, Receiver 2 output is low.
Pin 6 — RI
2
A — Receiver 2 input A.
Pin 7 — RI
2
B — Receiver 2 input B.
Pin 8 — GND — Digital Ground.
Pin 9 — RI
3
B — Receiver 3 input B.
Pin 10 — RI
3
A —
Receiver 3 input A.
Pin 11 — RO
— Receiver 3 Output — If
Receiver 3 output is enabled, if RI
A > RI
B by
200mV, Receiver 3 output is high. If Receiver 3
output is enabled, and if RI
A < RI
3
B by
200mV, Receiver 3 output is low.
Pin 12 — EN3/EN4 — Receiver 3 and 4 Output
Enable. Please refer to
SP489A
Truth Table (2).
Pin 13 — RO
— Receiver 4 Output — If
Receiver 4 output is enabled, if RI
A > RI
B by
200mV, Receiver 4 output is high. If Receiver 4
output is enabled, and if RI
A < RI
4
B by
200mV, Receiver 4 output is low.
Pin 14 — RI
4
A
— Receiver 4 input A.
Pin 15 — RI
4
B — Receiver 4 input B.
Pin 16 — Supply Voltage V
CC
— 4.75V
≤
V
CC
≤
5.25V.
A
B
54
50pF
DI
1/4 SP486
1/4 SP488
50pF EN
EN
ROn
DRIVER
RCVR
C
L
Figure 3. Timing Test Circuit
S
1
RCVR
S
2
V
CC
1k
C
L
1k
Figure 4. Enable/Disable Timing Test Circuit
相關PDF資料 |
PDF描述 |
|---|---|
| SP488AEP | High Speed Quad RS-485/RS-422 Line Receivers |
| SP488AET | High Speed Quad RS-485/RS-422 Line Receivers |
| SP489ECP | Enhanced Quad RS-485/RS-422 Line Receivers |
| SP489ECT | Enhanced Quad RS-485/RS-422 Line Receivers |
| SP489EEP | Enhanced Quad RS-485/RS-422 Line Receivers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP488AEP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
| SP488AET | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
| SP488CS | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Quad RS-485/RS-422 Line Receivers |
| SP488CS-L | 制造商:Exar Corporation 功能描述: |
| SP488CT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Quad RS-485/RS-422 Line Receivers |
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