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PDF SP3232EH Data sheet ( Hoja de datos )
| Número de pieza | SP3232EH | |
| Descripción | 460 kbps RS-232 Transceiver | |
| Fabricantes | Exar | |
| Logotipo |  |
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SP3232EH
3.3V, 460 kbps RS-232 Transceiver
FEATURES
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Interoperable with RS-232 down to a
+2.7V power source
■ Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC61000-4-2 Air Discharge
+8kV IEC61000-4-2 Contact Discharge
■ 460kbps Minimum Transmission Rate
■ Ideal for Handheld, Battery Operated
Applications
C1+ 1
V+ 2
C1- 3
C2+ 4
C2- 5
V- 6
T2OUT 7
R2IN 8
16 VCC
15 GND
14 T1OUT
SP3232EH 13 R1IN
12 R1OUT
11 T1IN
10 T2IN
9 R2OUT
Now Available in Lead Free Packaging
DESCRIPTION
The SP3232EH is a 2 driver / 2 receiver RS-232 transceiver solution intended for portable or
hand-held applications such as notebook or laptop computers. The data transmission rate of
460kbps can meet the demands of high speed RS-232 applications. This device has a high-
efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation.
This charge pump allows the SP3232EH device to deliver true RS-232 performance from
a single power supply ranging from +3.0V to +5.5V. The ESD tolerance of the SP3232EH
device exceeds +/-15kV for both Human Body Model and IEC61000-4-2 Air discharge test
methods.
SELECTION TABLE
Device
Power
Supplies
RS-232
Drivers
RS-232
Receivers
External
Components
Shutdown
TTL
3-State
# of
Pins
SP3232EH +3.0V to +5.5V 2
2
4 No No 16
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3232EH_102_031413
1 page  
Pin Function
NAME
FUNCTION
C1+
V+
C1-
C2+
C2-
V-
T1OUT
T2OUT
R1IN
R2IN
R1OUT
R2OUT
T1IN
T2IN
GND
VCC
Positive terminal of the voltage doubler charge-pump capacitor
+5.5V output generated by the charge pump
Negative terminal of the voltage doubler charge-pump capacitor
Positive terminal of the inverting charge-pump capacitor
Negative terminal of the inverting charge-pump capacitor
-5.5V output generated by the charge pump
RS-232 driver output.
RS-232 driver output.
RS-232 receiver input
RS-232 receiver input
TTL/CMOS receiver output
TTL/CMOS receiver output
TTL/CMOS driver input
TTL/CMOS driver input
Ground.
+3.0V to +5.5V supply voltage
Table 1. Device Pin Description
PIN NUMBER
SP3232EH
1
2
3
4
5
6
14
7
13
8
12
9
11
10
15
16
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3232EH_102_031413
5 Page 
VCC = +5V
+
C1 –
–5V
+5V
+
C2 –
–5V
Figure 12. Charge Pump — Phase 3
VCC = +5V
+
C1 –
+5.5V
+
C2 –
Figure 13. Charge Pump — Phase 4
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
C4
+ – VDD Storage Capacitor
– + VSS Storage Capacitor
C3
DESCRIPTION
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
11
SP3232EH_102_031413
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet SP3232EH.PDF ] | |
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