參數(shù)資料
型號: SP232EEP
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): 4/15頁
文件大?。?/td> 126K
代理商: SP232EEP
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
4
R
2
9
8
R IN
2
R OUT
R
1
12
13
R IN
1
R OUT
T
2
10
7
T IN
2
T OUT
T
1
11
14
T IN
1
T OUT
15
GND
400k
400k
T
R
3
4
1
C +
1
C -
1
6
16
V
CC
V+
+
+
6.3V
μ
+5V to +10V
Voltage Doubler
+5V INPUT
2
V-
T
R
5k
016V
μ
5k
5
C +
2
C -
2
+
0.1 F
16V
μ
+10V to -10V
Voltage Inverter
0.1 F 6.3V
10 F 6.3V
+
*
*The negative terminal of the V+ storage capacitor can be tied
or GND. Connecting the capacitor to V
CC
(+5V)
is recommended.
SP232E
Figure 1. Typical Circuit using the SP202E or SP232E.
FEATURES…
The
SP202E/232E/233E/310E/312E
devices
are a family of line driver and receiver pairs that
meet the specifications of RS-232 and V.28
serial protocols with enhanced ESD perfor-
mance. The ESD tolerance has been improved
on these devices to over
±
15KV for both Human
Body Model and IEC1000-4-2 Air Discharge
Method. These devices are pin-to-pin compat-
ible with
Sipex's
232A/233A/310A/312A
devices as well as popular industry standards.
As with the initial versions, the
SP202E/232E/
233E/310E/312E
devices feature10V/
μ
s slew
rate, 120Kbps data rate under load, 0.1
μ
F
charge pump capacitors, overall ruggedness
for commercial applications, and increased drive
current for longer and more flexible cable
configurations. This family also features
Sipex's
BiCMOS design allowing low power operation
without sacrificing performance.
The
SP202E/232E/233E/310E/312E
devices
have internal charge pump voltage converters
which allow them to operate from a single +5V
supply. The charge pumps will operate with
polarized or non-polarized capacitors ranging
from 0.1 to 10
μ
F and will generate the
±
10V
needed to generate the RS-232 output levels.
Both meet all EIA RS-232 and ITU V.28
specifications.
The
SP310E
provides identical features as the
SP232E
with a single control line which
simultaneously shuts down the internal DC/DC
converter and puts all transmitter and receiver
outputs into a high impedance state. The
SP312E
is identical to the
SP310E
with separate tri-state
and shutdown control lines.
THEORY OF OPERATION
The
SP232E
,
SP233E
,
SP310E
and
SP312E
devices are made up of three basic circuit blocks –
1) a driver/transmitter, 2) a receiver and 3) a charge
pump. Each block is described below.
Driver/Transmitter
The drivers are inverting transmitters, which ac-
cept TTL or CMOS inputs and output the RS-232
signals with an inverted sense relative to the input
logic levels. Typically the RS-232 output voltage
swing is
±
9V. Even under worst case loading
conditions of 3kOhms and 2500pF, the output is
guaranteed to be
±
5V, which is consistent with the
RS-232 standard specifications. The transmitter
outputs are protected against infinite short-circuits
to ground without degradation in reliability.
相關PDF資料
PDF描述
SP233ECT 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP233EET 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP310ECP 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP310ECT 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP310EEP Header cable for SNAP 32 Channel digital modules and G4 digital racks -- 6 ft RoHS Compliant: No
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