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부품번호 | SP3243E 기능 |
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기능 | Intelligent +3.0V to +5.5V RS-232 Transceivers | ||
제조업체 | Sipex | ||
로고 | |||
전체 24 페이지수
® SP3223E/3243E
Intelligent +3.0V to +5.5V RS-232 Transceivers
■ 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
■ Minimum 120Kbps data rate under load
■ Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of VCC
Variations
■ Enhanced ESD Specifications:
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
DESCRIPTION
The SP3223E and 3243E products are RS-232 transceiver solutions intended for portable or
hand-held applications such as notebook and palmtop computers. The SP3223E and 3243E
use an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors
in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3223E/
3243E series to deliver compliant RS-232 performance from a single power supply ranging
from +3.3V to +5.0V. The SP3223E is a 2-driver/2-receiver device, and the SP3243E is a
3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications.
The SP3243E includes one complementary receiver that remains alert to monitor an external
device's Ring Indicate signal while the device is shutdown.
The AUTO ON-LINE® 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 1µA.
SELECTION TABLE
Device Power Supplies
RS-232
Drivers
RS-232
Receivers
SP3223E +3.0V to +5.5V
2
2
SP3243E +3.0V to +5.5V
3
5
External
Components
4 capacitors
4 capacitors
AUTO ON-LINE®
Circuitry
TTL 3-State
No. of
Pins
YES
YES
20
YES
YES
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
1
© Copyright 2002 Sipex Corporation
SPECIFICATIONS (continued)
Unless otherwise noted, the following specifications apply for VCC = +3.0V to +5.5V with TAMB = TMIN to TMAX.
Typical values apply at VCC = +3.3V or +5.0V and TAMB = 25°C.
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
TIMING CHARACTERISTICS
Maximum Data Rate
120 235
Receiver Propagation Delay
tPHL
tPLH
Receiver Output Enable Time
0.3
0.3
200
Receiver Output Disable Time
200
Driver Skew
100
Receiver Skew
200
Transition-Region Slew Rate
500
1000
30
kbps RL = 3KΩ, CL = 1000pF, one driver active
µs Receiver input to Receiver output, CL = 150pF
ns Normal operation
ns Normal operation
ns
ns
V/µs
| tPHL - tPLH |, TAMB = 25oC
| tPHL - tPLH |
VCC= 3.3V, RL = 3KΩ, TAMB = 25oC,
measurements taken from -3.0V to +3.0V or
+3.0V to -3.0V
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for VCC = +3.3V, 120Kbps data rate, all drivers
loaded with 3KΩ, 0.1µF charge pump capacitors, and TAMB = +25°C.
14
6 12
4 10
2
Vout+
Vout-
8
0
0
-2
500
1000
1500
6
4
+Slew
-Slew
-4 2
-6
Load Capacitance [pF]
Figure 1. Transmitter Output Voltage VS. Load
Capacitance for the SP3223E
0
0
500
1000
1500
2000
Load Capacitance [pF]
Figure 2. Slew Rate VS. Load Capacitance for the
SP3223E
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
4
© Copyright 2002 Sipex Corporation
4페이지 EN 1
C1+ 2
20 SHUTDOWN
19 VCC
V+ 3
18 GND
C1- 4
C2+ 5
C2- 6
V- 7
SP3223E
17 T1OUT
16 R1IN
15 R1OUT
14 ONLINE
T2OUT 8
R2IN 9
R2OUT 10
13 T1IN
12 T2IN
11 STATUS
Figure 7. SP3223E Pinout Configuration
C2+ 1
C2- 2
V- 3
R1IN
R2IN
R3IN
4
5
6
R4IN 7
R5IN 8
T1OUT 9
T2OUT 10
T3OUT 11
T3IN 12
T2IN 13
T1IN 14
28 C1+
27 V+
26 VCC
25 GND
24 C1-
SP3243E 23 ONLINE
22 SHUTDOWN
21 STATUS
20 R2OUT
19 R1OUT
18 R2OUT
17 R3OUT
16 R4OUT
15 R5OUT
Figure 8. SP3243E Pinout Configuration
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
7
© Copyright 2002 Sipex Corporation
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부품번호 | 상세설명 및 기능 | 제조사 |
SP3243 | Intelligent +3.0V to +5.5V RS-232 Transceivers | Sipex |
SP3243B | Intelligent +3.0V to +5.5V RS-232 Transceivers | Sipex |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |