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參數(shù)資料
| 型號： | SP332 |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發(fā)器與0.1uF電容 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大小： | 188K |
| 代理商： | SP332 |
7
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
Copyright 2000 Sipex Corporation
RS-232 Mode
RS-485 Mode
Phase 3
-Vdd charge storage- The third phase of the
clock is identical to the first phase- the trans-
ferred charge in C1 produces -5V in the negative
terminal of C1, which is applied to the negative
side of capacitor C2. Since C2+ is at +5V, the
voltage potential across C2 is 10V.
Phase 4
-Vdd transfer- The fourth phase of the clock
connects the negative terminal of C2 to ground
and transfers the generated 10V across C2 to C4,
the Vdd storage capacitor. Simultaneously with
this, the positive side of capacitor C1 is switched
to +5V and the negative side is connected to
ground, and the cycle begins again.
Since both V+ and V- are separately generated
from Vcc in a no load condition, V+ and V- will
be symmetrical. Older charge pump approaches
that generate V- from V+ will show a decrease
in the magnitude of V- compared to V+ due to
the inherent inefficiencies in the design.
The clock rate for the charge pump typically
operates at 15kHz. The external capacitors must
be 0.1
μ
F with a 16V breakdown rating.
SP332 TYPICAL OPERATING CIRCUIT
+5V
GND
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
μ
F
0.1
μ
F
23
VCC
V+
V-
TTL/CMOS
SHUT
DOWN
RS-232
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T2
T3
T4
TX1
TX2
TX3
TX4
TI1
TI2
TI3
TI4
RI1
RI2
RI3
RI4
RX1
RX2
RX3
RX4
1
3
4
5
6
7
8
10
0.1
μ
F
0.1
μ
F
C1+
C1-
C2+
C2-
SEL A
9
11
12
13
24
14
15
16
17
18
19
20
21
22
SEL B
2
25
26
27
28
R1
R2
R3
R4
5K
5K
5K
5K
400K
Vcc
400K
Vcc
400K
Vcc
400K
Vcc
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
LOOP
BACK
0V
0V
SEL A
SEL B
TTL/CMOS
TTL/CMOS
TTL/CMOS
0.1
μ
F
0.1
μ
F
C1+
C1-
C2+
C2-
1
2
+5V
VCC
5
GND
8
9
11
12
13
24
19
20
22
26
27
28
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
T1
T3
R1
RS-485
RS-485
RS-485
TTL/CMOS
0.1
μ
F
0.1
μ
F
23
V+
V-
TTL/CMOS
SHUT
DOWN
RS-485
RS-485
RS-485
4
6
7
10
14
15
16
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
15K
15K
15K
400K
Vcc
400K
Vcc
LOOP
BACK
RS-485
RS-485
+5V
+5V
SP332
SP332
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP332CT | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP332ET | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP333 | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP333ET | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP333CT | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
| SP332CT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:RS-232/RS-485 Multi-Mode Serial Transceiver |
| SP332CT-L | 功能描述:RS-232接口集成電路 RS-232/RS-485 Multi-Mode Serial RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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