参数资料
| 型号： | SP488ET-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 3/6页 |
| 文件大小： | 0K |
| 描述： | IC RCVR RS485/RS422 QUAD 16SOIC |
| 产品变化通告： | Product Discontinuation 21/Dec/2011 |
| 标准包装： | 1,500 |
| 类型： | 接收器 |
| 驱动器/接收器数： | 0/4 |
| 规程： | RS422/RS485 |
| 电源电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
3
SP488/489
Quad RS-485/RS-422 Line Receivers
Copyright 2000 Sipex Corporation
A
B
54
100pF
DI
1/4 SP486
1/4 SP488
100pF EN
EN
ROn
DRIVER
RCVR
CL
Figure 1. Timing Test Circuit
S1
RCVR
S2
VCC
1k
CL
1k
Figure 2. Enable/Disable Timing Test Circuit
Pin 6 — RI
2A — Receiver 2 input A.
Pin 7 — RI
2B — Receiver 2 input B.
Pin 8 — GND — Digital Ground.
Pin 9 — RI
3B — Receiver 3 input B.
Pin 10 — RI
3A — Receiver 3 input A.
Pin 11 — RO
3 — Receiver 3 Output — If
Receiver 3 output is enabled, if RI
3A > RI3B by
200mV, Receiver 3 output is high. If Receiver 3
output is enabled, and if RI
3A < RI3B
by
200mV, Receiver 3 output is low.
Pin 12 — EN — Receiver Output Enable. Please
refer to SP488 Truth Table (1).
SP488 PINOUT
Pin 1 — RI
1B — Receiver 1 input B.
Pin 2 — RI
1A — Receiver 1 input A.
Pin 3 — RO
1 — Receiver 1 Output — If Re-
ceiver 1 output is enabled, if RI
1A > RI1B
by
200mV, Receiver output is high. If Receiver 1
output is enabled, and if RI
1A < RI1B by 200mV,
Receiver 1 output is low.
Pin 4 — EN — Receiver Output Enable. Please
refer to SP488 Truth Table (1).
Pin 5 — RO
2 — Receiver 2 Output — If Re-
ceiver 2 output is enabled, if RI
2A > RI2B
by
200mV, Receiver 2 output is high. If Receiver 2
output is enabled, and if RI
2A < RI2B
by
200mV, Receiver 2 output is low.
SP488
RI1B
RI1A
RO1
EN
RO2
RI2A
RI2B
GND
VCC
RI4B
RI4A
RO4
EN
RO3
RI3A
RI3B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
4
3
2
SP489
RI1B
RI1A
RO1
EN1/EN2
RO2
RI2A
RI2B
GND
VCC
RI4B
RI4A
RO4
EN3/EN4
RO3
RI3A
RI3B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
4
3
2
PINOUT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP489 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Quad RS-485/RS-422 Line Receivers |
| SP489A | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
| SP489ACP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
| SP489ACT | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
| SP489AEP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Speed Quad RS-485/RS-422 Line Receivers |
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