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SP3243ECT-L 参数 Datasheet PDF下载

SP3243ECT-L图片预览
型号: SP3243ECT-L
PDF下载: 下载PDF文件 查看货源
内容描述: 3驱动器/接收器5智能+ 3.0V至+ 5.5V的RS - 232收发器 [3 Driver/5 Receiver Intelligent +3.0V to +5.5V RS-232 Transceivers]
分类和应用: 驱动器
文件页数/大小: 24 页 / 1095 K
品牌: EXAR [ EXAR CORPORATION ]
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SP3243E
3 Driver/5 Receiver Intelligent +3.0V to +5.5V
RS-232 Transceivers
FEATURES
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
■ AUTO ON-LINE
®
circuitry automatically
wakes up from a 1µA shutdown
■ Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
■ Enhanced ESD Specifications:
+15kV
Human Body Model
+15kV
IEC1000-4-2 Air Discharge
+8kV
IEC1000-4-2 Contact Discharge
■ 250 Kbps min. transmission rate (EB)
■ 1000 Kbps min. transmission rate (EU)
■ Ideal for High Speed RS-232 Applications
C2+ 1
C2- 2
V-
R
1
IN
R
2
IN
R
3
IN
R
4
IN
3
4
5
6
7
SP3243E
28 C1+
27
26
25
24
V+
V
CC
GND
C1-
23 ONLINE
22 SHUTDOWN
21 STATUS
20
19
18
17
16
15
R
2
OUT
R
1
OUT
R
2
OUT
R
3
OUT
R
4
OUT
R
5
OUT
R
5
IN 8
T
1
OUT 9
T
2
OUT 10
T
3
OUT 11
T
3
IN 12
T
2
IN 13
T
1
IN 14
Now Available in Lead Free Packaging
The SP3243E products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable
or hand-held applications such as notebook and palmtop computers. The SP3243E includes one
complementary receiver that remains alert to monitor an external device's Ring Indicate signal while
the device is shutdown. The SP3243E and EB devices feature slew-rate limited outputs for reduced
crosstalk and EMI. The "U" and "H" series are optimized for high speed with data rates up to 1Mbps,
easily meeting the demands of high speed RS-232 applications. The SP3243E series uses an internal
high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This
charge pump and Exar's driver architecture allow the SP3243E series to deliver compliant RS-232
performance from a single power supply ranging from +3.0V to +5.5V. The AUTO ON-LINE
®
feature
allows the device to automatically "wake-up" during a shutdown state when an RS-232 cable is con-
nected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down
drawing less than 1µA.
Device
Power
Supplies
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
3
3
3
3
RS-232
Receivers
5
5
5
5
External
Components
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
Auto
On-Line
Circuitry
Yes
Yes
Yes
Yes
TTL
3-
State
Yes
Yes
Yes
Yes
DESCRIPTION
SELECTION TABLE
# of
Pins
28
28
28
28
Data
Rate
120
250
460
1000
ESD
Rating
15kV
15kV
15kV
15kV
SP3243E
SP3243EB
SP3243EH
SP3243EU
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3243E_100_072309
1