IC Integrated Circuit of Line Driver and Receiver Pairs Sp232een

Product Description

Operates from Single +5V Power Supply
Meets All RS-232D and ITU V.28
 
FEATURES…
The SP202E/232E/233E/310E/312E devices
are a family of line driver and receiver pairs that
meet the specifications of RS-232 and V.28
serial protocols with enhanced ESD performance.
The ESD tolerance has been improved
on these devices to over ±15KV for both Human
Body Model and IEC1000-4-2 Air Discharge
Method. These devices are pin-to-pin compatible
with Sipex's 232A/233A/310A/312A
devices as well as popular industry standards.
As with the initial versions, the SP202E/232E/
233E/310E/312E devices feature10V/µs slew
rate, 120Kbps data rate under load, 0.1µF
charge pump capacitors, overall ruggedness
for commercial applications, and increased drive
current for longer and more flexible cable
configurations. This family also features Sipex's
BiCMOS design allowing low power operation
without sacrificing performance.
The SP202E/232E/233E/310E/312E devices
have internal charge pump voltage converters
which allow them to operate from a single +5V
supply. The charge pumps will operate with
polarized or non-polarized capacitors ranging
from 0.1 to 10 µF and will generate the ±10V
needed to generate the RS-232 output levels.
Both meet all EIA RS-232 and ITU V.28
specifications.
The SP310E provides identical features as the
SP232E with a single control line which
simultaneously shuts down the internal DC/DC
converter and puts all transmitter and receiver
outputs into a high impedance state. The SP312E
is identical to the SP310E with separate tri-state
and shutdown control lines.
THEORY OF OPERATION
The SP232E, SP233E, SP310E and SP312E
devices are made up of three basic circuit blocks -
1) a driver/transmitter, 2) a receiver and 3) a charge
pump. Each block is described below.
Driver/Transmitter
The drivers are inverting transmitters, which accept
TTL or CMOS inputs and output the RS-232
signals with an inverted sense relative to the input
logic levels. Typically the RS-232 output voltage
swing is ±9V. Even under worst case loading
conditions of 3kOhms and 2500pF, the output is
guaranteed to be ±5V, which is consistent with the
RS-232 standard specifications. The transmitter
outputs are protected against infinite short-circuits
to ground without degradation in reliability.
 
Specifications
Operates with 0.1µF to 10µF Capacitors
High Data Rate - 120Kbps Under Load
Low Power Shutdown ≤1µA (Typical)
3-State TTL/CMOS Receiver Outputs
Low Power CMOS - 3mA Operation
Improved ESD Specifications:
±15kV Human Body Model
±15kV IEC1000-4-2 Air Discharge
±8kV IEC1000-4-2 Contact Discharge
 
Description
The SP202E/232E/233E/310E/312E devices are a family of line driver and receiver pairs that meet the specifications of RS-232 and V.28 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on these devices to over ±15KV for both Human Body Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with Sipex's SP232A/233A/310A/312A devices as
well as popular industry standards. As with the initial versions, the SP202E/232E/233E/310E/312E devices feature at least 120Kbps data rate under load, 0.1µF charge pump capacitors, and overall ruggedness for commercial applications.This family also features Sipex's BiCMOS design allowing low power operation without sacrificing performance. The series is available in plastic and ceramic DIP and SOIC packages operating over the commercial, industrial and military temperature ranges.