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參數(shù)資料
| 型號： | SP331ET-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS232/485 PROG 28WSOIC |
| 標準包裝： | 1,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 4/4 |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設(shè)備封裝： | 28-SOIC W |
| 包裝： | 帶卷 (TR) |
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP33_00_0260
The SP33 is a programmable RS-232 and/or RS-485 transceiver IC. The SP33 contains
four drivers and four receivers when selected in RS-232 mode; and two drivers and two
receivers when selected in RS-485 mode. The SP33 also contains a dual mode which has
two RS-232 drivers/receivers plus one differential RS-485 driver/receiver.
The RS-232 transceivers can typically operate at 230kbps while adhering to the RS-232 speci-
fications. The RS-485 transceivers can operate up to 10Mbps while adhering to the RS-485
specifications. The SP331 includes a self-test loopback mode where the driver outputs are
internally configured to the receiver inputs. This allows for easy diagnostic serial port testing
without using an external loopback plug. The RS-232 and RS-485 drivers can be disabled
(High-Z output) by controlling a set of four select pins.
DESCRIPTION
+5V Only Operation
Software Programmable RS-232 or RS-485
Selection
Four RS-232 Transceivers in RS-232 Mode
Two RS-485 Full-Duplex Transceivers in
RS-485 Mode
Two RS-232 Transceivers and One RS-485
Transceiver in Dual Mode
Self-Testing Loopback Mode
Full Driver Tri-State (Hi-Z) Control
Ideal for RS-232 to RS-485 conversion
SP33
Programmable Dual RS-232/RS-485 Transceiver
TI4
SEL_B
TX4
TX3
VCC
TX1
TX2
GND
C1+
V+ (VDD)
C2+
C1–
C2–
V– (VSS)
TI3
TI2
TI1
SEL_C
SEL_A
SEL_D
RX4
RX3
RX2
RX1
RI4
RI3
RI2
RI1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SP331
TYPICAL APPLICATIONS CIRCUIT
SEL A
TTL/CMOS
0.1F
C1+
C1-
C2+
C2-
1
SEL B
2
+5V
VCC
5
GND
8
9
11
12
13
19
20
22
24
26
27
28
TTL/CMOS
T1
T3
R1
RS-485
0V
V+
V-
0V
SEL C
RS-485
4
6
7
10
14
15
16
23
25
3
RI1
RI2
TX3
TX4
TX1
TX2
TI1
TI2
TI3
TI4
RX1
RX2
TTL/CMOS
21
R3
17
18
RI4
RI3
RX3
RX4
15K
400K
Vcc
400K
Vcc
SEL D
RS-485
+5V
SP331
15K
0.1F
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP332ET-L | IC TXRX RS232/485 SRL 28WSOIC |
| SP334ET-L | IC TXRX RS232/485 PROG 28WSOIC |
| SP337EEY-L | IC TXRX RS232/422/485 28TSSOP |
| SP338EER1-L | IC INTERFACE |
| SP339EER1-L | IC TXRX RS232/485 TERM 40QFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP331K | 制造商:CDE 制造商全稱:Cornell Dubilier Electronics 功能描述:Ceramic Capacitors |
| SP332 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:RS-232/RS-485 Multi-Mode Serial Transceiver |
| SP3-3-20 | 制造商:RHOMBUS-IND 制造商全稱:Rhombus Industries Inc. 功能描述:SP3 Series Mini-SIP Passive Delay Modules |
| SP332-B4 | 制造商:Leviton Manufacturing Co 功能描述: |
| SP332-B6 | 制造商:Leviton Manufacturing Co 功能描述: |
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