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型号: | SP3232 |
厂商: |
|
描述: | true +3.0V to +5.5V RS-232 transceivers |
PDF: | 预览 |
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SP3232的详细信息
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®
SP3222E/3232E
True +3.0V to +5.5V RS-232Transceivers
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Minimum 120Kbps Data Rate Under Full
Load
■ 1µA Low-Power Shutdown with Receivers
Active (SP3222E)
■ Interoperable with RS-232 down to +2.7V
power source
■ Enhanced ESD Specifications:
±15kV Human Body Model
±15kV IEC1000-4-2 Air Discharge
±8kV IEC1000-4-2 Contact Discharge
DESCRIPTION
The SP3222E/3232E series is an RS-232 transceiver solution intended for portable or hand-
held applications such as notebook or palmtop computers. The SP3222E/3232E series has
a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V
operation. This charge pump allows the SP3222E/3232E series to deliver true RS-232
performance from a single power supply ranging from +3.3V to +5.0V. The SP3222E/3232E
are2-driver/2-receiverdevices. Thisseriesisidealforportableorhand-heldapplicationssuch
as notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices are
over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The
SP3222E device has a low-power shutdown mode where the devices' driver outputs and
charge pumps are disabled. During shutdown, the supply current falls to less than 1µA.
SELECTION TABLE
RS-232
Drivers
RS-232
Receivers Components
External
TTL
3-State
No. of
Pins
MODEL Power Supplies
Shutdown
+3.0V to +5.5V
+3.0V to +5.5V
2
2
2
2
4
4
Yes
No
Yes
No
18, 20
16
SP3222
SP3232
Rev. 11/07/02
SP3222E/3232E True +3.0 to +5.0V RS-232 Transceivers
© Copyright 2001 Sipex Corporation
1
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