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DS14C535 Dataheets PDF



Part Number DS14C535
Manufacturers National
Logo National
Description +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver
Datasheet DS14C535 DatasheetDS14C535 Datasheet (PDF)

DS14C535 +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver May 1998 DS14C535 +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver General Description The DS14C535 is three driver, five receiver device which conforms to EIA/TIA-232-E and CCITT (ITU-T) V.28 standard specifications. This device employs an internal DC-DC converter to generate the necessary output levels from a +5V power supply. A SHUTDOWN (SD) mode reduces the supply current to 10 µA maximum. In the SD mode, one receiver is active, allowing ri.

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DS14C535 +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver May 1998 DS14C535 +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver General Description The DS14C535 is three driver, five receiver device which conforms to EIA/TIA-232-E and CCITT (ITU-T) V.28 standard specifications. This device employs an internal DC-DC converter to generate the necessary output levels from a +5V power supply. A SHUTDOWN (SD) mode reduces the supply current to 10 µA maximum. In the SD mode, one receiver is active, allowing ring indicator (RI) to be monitored. PC Board space consumption is minimized by the availability of Shrink Small Outline Packaging (SSOP). The DS14C535 provides a one-chip solution for the common 9-pin serial RS-232 interface between data terminal and data circuit-terminating equipment. This device allows an easy migration path to the 3.3V DS14C335. The packages are the same. The N/C pins on the DS14C535 are not physically connected to the chip. Board layout for the DS14C335 will accommodate both devices. This device’s low power requirement and small footprint makes it an ideal choice for Laptop and Notebook applications. Features n Pin compatible with DS14C335 n Conforms to EIA/TIA-232-E and CCITT (ITU-T) V.28 specifications n Failsafe receiver outputs high when inputs open n Operates with single +5V power supply n Low power requirement — ICC 12 mA maximum n SHUTDOWN mode — ICX 10 µA maximum n One Receiver (R5) active during SHUTDOWN n Operates up to 128 kbps — Lap-Link ® Compatible n 4V/µs minimum Slew Rate guaranteed n ESD rating of 3 kV on all pins (H, B, M) n Available in 28-lead SSOP EIAJ Type II package n Only four 0.1 µF capacitors required for the DC-DC converter Connection Diagram DS14C535 Functional Diagram DS011910-1 Order Number DS14C535MSA See NS Package Number MSA28 DS011910-2 Lap-Link ® is a registered trademark of Traveling Software Inc. © 1999 National Semiconductor Corporation DS011910 www.national.com Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) −0.3V to +6V (VCC − 0.3V) to +14V V+ Pin +0.3V to −14V V− Pin −0.3V to +5.5V Input Voltage (DIN, SD) Driver Output Voltage (V+ +0.3V) to (V− − 0.3V) ± 25V Receiver Input Voltage Receiver Output Voltage − 0.3V to (VCC +0.3V) Junction Temperature +150˚C Storage Temperature Range −65˚C to +150˚C Lead Temperature (Soldering 4 sec.) +260˚C Continuous Short Circuit Duration (DOUT) Maximum Package Power Dissipation @ +25˚C SSOP MSA Package 1286 mW Derate MSA Package 10.3 mW/˚C above +25˚C ESD Rating (HBM, 1.5 kΩ, 100 pF) ≥ 3.0 kV Recommended Operating Conditions Min 4.5 Supply Voltage (VCC) Operating Free Air Temperature (TA) DS14C535 0 DC-DC Converter Capacitors (C1–C4) Max 5.5 +70 Units V ˚C Recommended range of values is 0.1 µF to 0.68 µF, ± 20%. For more detail refer to application information section of this data sheet.


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