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SP3282EBEY/TR Datasheet

  • SP3282EBEY/TR

  • Intelligent +2.35V to +5.5V RS-232 Transceivers

  • 15頁

  • SIPEX

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廬
Preliminary
SP3282EB
Intelligent +2.35V to +5.5V RS-232 Transceivers
FEATURES
鈻?/div>
Operates over entire Li+ Battery range
鈻?/div>
Interoperable with EIA/TIA-232-F and
adheres to EIA/TIA-562 down to a
+2.35V power supply
鈻?/div>
AUTO ON-LINE
廬
circuitry automatically
wakes up from a 1碌A(chǔ) shutdown
鈻?/div>
Minimum 250Kbps data rate
鈻?/div>
Regulated charge pump yields stable
RS-232 outputs regardless of V
CC
variations
鈻?/div>
Unique V
L
for low logic compatibility
regardless of V
CC
鈻?/div>
Enhanced ESD Specifications for all
TTL and RS-232 I/O lines.
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
鈻?/div>
Enhanced battery life as the V
CC
drops
below 3.1V
C2+ 1
GND 2
C2- 3
V- 4
T1OUT 5
T2OUT 6
T3OUT 7
R1IN 8
R2IN 9
T4OUT 10
R3IN 11
T5OUT 12
ONLINE 13
SHUTDOWN 14
SP3282EB
28 C1+
27
26
25
V+
V
CC
C1-
24 T1IN
23 T2IN
22 T3IN
21 R1OUT
20
R2OUT
19 T4IN
18
17
16
R3OUT
T5IN
VL
15 STATUS
Now Available in Lead Free Packaging
APPLICATIONS
鈻?/div>
Cell phone data cables
鈻?/div>
PDAs, PDA cradles
鈻?/div>
Hand held equipment
鈻?/div>
Peripherals
DESCRIPTION
The SP3282EB device is an RS-232 transceiver solution intended for portable or hand-held
applications such as notebook and palmtop computers, PDAs, cell phones and their data cables
and cradles.
The SP3282EB is compatible with low voltage logic down to 1.8V using a logic select pin (VL)
which conditions the logic inputs and outputs to be compatible with system logic.
The SP3282EB uses an internal high-efficiency, charge-pump power supply that requires only
0.1碌F capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow the
SP3282EB device to deliver compliant RS-232 performance from a single +3.3V to +5.5Vpower
supply and additionally adhere to EIA/TIA-562 driver outputs levels down to a power supply
voltage of 2.35V.
The
AUTO ON-LINE
廬
feature allows the device to automatically "wake-up" during a shutdown
state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,
the device automatically shuts itself down drawing less than 1碌A(chǔ).
TABLE 1
Device
SP3282EB
Power
Supplies
2.35V to 5.5V
RS-232
Drivers
5
RS232
Receivers
3
External
AUTO ON-LINE
廬
Components
Circuitry
4
yes
Data
No. of
Rate
Pins
250kbps 28
Applicable U.S. Patents - 5,306,954; and 6,378,026.
Date: 02/24/05
SP3282EB Intelligent +2.35V to +5.5V RS-232 Transceivers
漏 Copyright 2005 Sipex Corporation
1

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