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DP8303A Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DP8303A Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 6 page TLF5856 February 1996 DP8303A 8-Bit TRI-STATE Bidirectional Transceiver (Inverting) General Description This family of high speed Schottky 8-bit TRI-STATE bidirec- tional transceivers are designed to provide bidirectional drive for bus oriented microprocessor and digital communi- cations systems They are all capable of sinking 16 mA on the A ports and 48 mA on the B ports (bus ports) PNP inputs for low input current and an increased output high (VOH) level allow compatibility with MOS CMOS and other technologies that have a higher threshold and less drive capabilities In addition they all feature glitch-free power updown on the B port preventing erroneous glitches on the system bus in power up or down DP8303A and DP7304BDP8304B are featured with Trans- mitReceive (TR) and Chip Disable (CD) inputs to simplify control logic For greater design flexibility DP8307A and DP7308DP8308 are featured with Transmit (T) and Receive (R) control inputs Features Y 8-bit directional data flow reduces system package count Y Bidirectional TRI-STATE inputsoutputs interface with bus oriented systems Y PNP inputs reduce input loading Y Output high voltage interfaces with TTL MOS and CMOS Y 48 mA300 pF bus drive capability Y Pinouts simplify system interconnections Y TransmitReceive and chip disable simplify control logic Y Compact 20-pin dual-in-line package Y Bus port glitch free power updown Logic and Connection Diagrams TLF5856 – 1 Dual-In-Line Package TLF5856 – 2 Top View Order Number DP8303AN See NS Package Number N20A Logic Table Inputs Resulting Conditions Chip Disable TransmitReceive A Port B Port 0 0 OUT IN 0 1 IN OUT 1 X TRI-STATE TRI-STATE X e Don’t care TRI-STATE is a registered trademark of National Semiconductor Corp C1996 National Semiconductor Corporation RRD-B30M36Printed in U S A http www nationalcom |
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