sp385e-1 Exar Corporation, sp385e-1 Datasheet

no-image

sp385e-1

Manufacturer Part Number
sp385e-1
Description
232 Line Driver/receiver
Manufacturer
Exar Corporation
Datasheet
DESCRIPTION
The Sipex SP385E-1 is an enhanced version of the Sipex SP200 family of RS232 line
drivers/receivers. The SP385E-1 offers +3.3V operation for EIA-562 and EIA-232 applica-
tions. The SP385E-1 maintains the same performance features offered in its predecessors.
The SP385E-1 is available in plastic SOIC or SSOP packages operating over the commercial
and industrial temperature ranges. The SP385E-1 is pin compatible to the LTC1385 EIA-562
transceiver, except the drivers in the SP385E-1 can only be disabled with the ON/OFF pin.
Rev. 07/26/02
Operates from 3.3V or 5V Power Supply
Meets True EIA/TIA-232-F Standards
from a +3.0V to +5.5V Power Supply
Meets EIA-562 Specifications at V
2.7V
Two Drivers and Receivers
Operates with 0.1µF Capacitors
High Data Rate — 120kbps Under Load
Low Power Shutdown 1µA
3-State TTL/CMOS Receiver Outputs
Low Power CMOS — <1mA Operation
Improved ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
True +3V or +5V RS-232 Line Driver/Receiver
®
Charge
Pumps
SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver
TTL/CMOS INPUTS
RS232 OUTPUTS
CC
T
1
T
1
2
TTL/CMOS OUTPUTS
RS232 INPUTS
R
1
R
2
© Copyright 2001 Sipex Corporation
SP385E-1

Related parts for sp385e-1

sp385e-1 Summary of contents

Page 1

... The SP385E-1 maintains the same performance features offered in its predecessors. The SP385E-1 is available in plastic SOIC or SSOP packages operating over the commercial and industrial temperature ranges. The SP385E-1 is pin compatible to the LTC1385 EIA-562 transceiver, except the drivers in the SP385E-1 can only be disabled with the ON/OFF pin. Charge Pumps Rev ...

Page 2

... Volts 1.0 µs 0.3 µs 30 V/µs 10 V/µs 200 ns 200 ns 0 0.010 5 µA SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver 2 (V+, +0.3V) to (V-, -0.3V) -0.3V to (Vcc +0.3V) Continuous CONDITIONS T ; ON/OFF Vcc = 3. ON/OFF Vcc = 3. 2500pF 1.6mA; Vcc = 3.3V OUT I = -1.0mA OUT ...

Page 3

... -55 - Load Current (mA) Temperature (°C) SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver 3 CONDITIONS T ; ON/OFF ON/OFF 2500pF 1.6mA; Vcc = +5V OUT I = -1.0mA OUT OUT ...

Page 4

... OUT OUT OUT OUT 2 2 ON/OFF SSOP Package SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver 4 20 ON/OFF GND 17 T OUT OUT ...

Page 5

... EIA-562 applications since the EIA-562 receivers have input sensitivity levels of less than ±3V. THEORY OF OPERATION The SP385E-1 device is made up of three basic circuit blocks — driver/transmitter receiver and 3) a charge pump. Rev. 07/26/02 Driver/Transmitter The drivers are inverting level transmitters, that convert TTL or CMOS logic levels to ± ...

Page 6

... – Figure 2. Charge Pump — Phase 2 10V C2+ Storage Capacitor DD Storage Capacitor SS GND GND C2- -10V Figure 3. Charge Pump Waveforms SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver Since l0V – and V are separately generated + – ...

Page 7

... The shutdown mode is controlled on the SP385E logic "0" on the ON/ OFF control line (pin 18 for the SOIC and pin 20 for the SSOP packages); this puts the transmitter outputs in a tri-state mode ...

Page 8

... SW2 is switched on. The lower current limiting resistor increases the current charge onto the test point. IEC1000-4-2 Air Discharge Direct Contact ±15kV ±15kV SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver 8 is initially S ) and the source capacitor S ) are 330 an S value in the ...

Page 9

... B DIMENSIONS (Inches) Minimum/Maximum (mm Ø Rev. 07/26/02 SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver PACKAGE: PLASTIC SMALL OUTLINE (SOIC) (WIDE) L 18–PIN 0.090/0.104 (2.29/2.649)) 0.004/0.012 (0.102/0.300) 0.013/0.020 (0.330/0.508) 0.447/0.463 (11.35/11.74) 0.291/0.299 (7.402/7.600) ...

Page 10

... DIMENSIONS (Inches) Minimum/Maximum Rev. 07/26/02 SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver PACKAGE: PLASTIC SHRINK H A 20–PIN (mm) A 0.068/0.078 (1.73/1.99) A1 0.002/0.008 (0.05/0.21) B 0.010/0.015 (0.25/0.38) D 0.278/0.289 (7.07/7.33) E 0.205/0.212 (5.20/5.38) e 0.0256 BSC (0.65 BSC) H 0.301/0.311 (7.65/7.90) L 0.022/0.037 (0.55/0.95) Ø 0°/8° (0°/8°) 10 SMALL OUTLINE (SSOP) Ø ...

Page 11

... Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Rev. 07/26/02 ORDERING INFORMATION Temperature Range SP385E-1 True +3V to +5V RS-232 Line Driver/Receiver 11 Package © Copyright 2001 Sipex Corporation ...

Related keywords