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參數(shù)資料
| 型號(hào)： | SP233E |
| 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(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 126K |
| 代理商： | SP233E |
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Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
8
Table 1. Wake-up Function Truth Table.
SD
0
0
1
1
EN
0
1
0
1
Power
Up/Down
Down
Down
Up
Up
Receiver
Outputs
Enable
Tri–state
Enable
Tri–state
SP310E
transmitter and receiver outputs in a high
impedance condition (tri-stated). The shutdown
mode is controlled on the
SP312E
by a logic “0”
on the SHUTDOWN control line (pin 18); this also
puts the transmitter outputs in a tri–state mode.
The receiver outputs can be tri–stated separately
during normal operation or shutdown by a logic
“1” on the ENABLE line (pin 1).
Wake–Up Feature for the SP312E
The
SP312E
has a wake–up feature that keeps
all the receivers in an enabled state when the
device is in the shutdown mode.
Table 1
defines
the truth table for the wake–up function.
With only the receivers activated, the
SP312E
typically draws less than 5
μ
A supply current.
In the case of a modem interfaced to a computer
in power down mode, the Ring Indicator (RI)
signal from the modem would be used to "wake
up" the computer, allowing it to accept data
transmission.
After the ring indicator signal has propagated
through the
SP312E
receiver, it can be used to
trigger the power management circuitry of the
computer to power up the microprocessor, and
bring the SD pin of the
SP312E
to a logic high,
taking it out of the shutdown mode. The receiver
propagation delay is typically 1
μ
s. The enable
time for V
+
and V
–
is typically 2ms. After V
+
and
V
–
have settled to their final values, a signal can
be sent back to the modem on the data terminal
ready (DTR) pin signifying that the computer is
ready to accept and transmit data.
Pin Strapping for the SP233ECT
The
SP233E
packaged in the 20–pin SOIC pack-
age (
SP233ECT
) has a slightly different pinout
than the
SP233E
in other package configurations.
To operate properly, the following pairs of pins
must be externally wired together:
the two V– pins (pins 10 and 17)
the two C
2
+ pins (pins 12 and 15)
the two C
2
– pins (pins 11 and 16)
All other connections, features, functions and
performance are identical to the
SP233E
as
specified elsewhere in this data sheet.
ESD TOLERANCE
The
SP202E/232E/233E/310E/312E
devices
incorporates ruggedized ESD cells on all driver
output and receiver input pins. The ESD struc-
ture is improved over our previous family for
more rugged applications and environments sen-
sitive to electro-static discharges and associated
transients. The improved ESD tolerance is at
least
±
15KV without damage nor latch-up.
There are different methods of ESD testing
applied:
a) MIL-STD-883, Method 3015.7
b) IEC1000-4-2 Air-Discharge
c) IEC1000-4-2 Direct Contact
The Human Body Model has been the generally
accepted ESD testing method for semiconductors.
This method is also specified in MIL-STD-883,
Method 3015.7 for ESD testing. The premise of
this ESD test is to simulate the human body’s
potential to store electro-static energy and
discharge it to an integrated circuit. The
simulation is performed by using a test model as
shown in
Figure 9
. This method will test the IC’s
capability to withstand an ESD transient during
normal handling such as in manufacturing areas
where the ICs tend to be handled frequently.
The IEC-1000-4-2, formerly IEC801-2, is
generally used for testing ESD on equipment and
systems. For system manufacturers, they must
guarantee a certain amount of ESD protection
since the system itself is exposed to the outside
environment and human presence. The premise
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| SP233ECP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP310EEA | LOCATOR TO USE WITH AMT23002DA |
| SP312EEA | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP202ECN | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| SP202ECP | 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 |
|---|---|
| SP233ECP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High-Performance RS-232 Line Drivers/Receivers |
| SP233ECT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High-Performance RS-232 Line Drivers/Receivers |
| SP233ECT/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High-Performance RS-232 Line Drivers/Receivers |
| SP233ECT-L | 功能描述:RS-232接口集成電路 5V SNGL SUPPLY RS-232 0-70C 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| SP233ECT-L/TR | 功能描述:RS-232接口集成電路 5V SNGL SUPPLY RS-232 0-70C 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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