DS9627 Datasheet | National Semiconductor

Description The DS9627 is a dual-line receiver which meets the electrical interface specifications of EIA RS-232C and MIL-STD-188C. The input circuitry acmodates ± 25V input signals and the differential inputs allow user selection of either inverting or non-inverting logic for the receiver operation. The DS9627 provides both a selectable hysteresis range and selectable receiver input resistance. When pin 1 is tied to V- , the typical switching points are at 2.6V and - 2.6V, thus meeting RS-232-C requirements. When pin 1 is open, the typical switching points are at 50 µA and - 50 µA, thus satisfying the requirements of MIL-STD-188C LOW level interface. Connecting the RA and/or RB pins to the (- ) input yields an input impedance in the range of 3 kΩ to 7 kΩ and satisfies RS-232-C requirements; leaving RA and/or RB pins unconnected, the input resistance will be greater than 6 kΩ to satisfy MIL-STD-188C. The output circuitry is TTL/DTL patible and will allow “collector-dotting” to generate the wired-OR function. A TTL/ DTL strobe is also provided for each receiver. Features n n n n n n n n EIA RS-232-C input standards MIL-STD-188C input standards Variable hysteresis control High mon mode rejection R control (5 kΩ or 10 kΩ) Wired-OR capability Choice of inverting and non-inverting inputs Outputs and strobe TTL patible Connection Diagram 16-Lead DIP DS009761-1 Top View Order Number DS9627MJ/883 See NS Package Number J16A For plete Military 883 Specifications, see RETS Data Sheet. © 1999 National Semiconductor Corporation DS009761 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 60 sec.) Internal Power Dissipation (Note 5) V+ to GND V- to GND - 65˚C to +175˚C - 55˚C to +125˚C 300˚C 400 m W 0V to +15V 0V to - 15V Input Voltage Referred...