HI-1567CD HOLTIC [Holt Integrated Circuits], HI-1567CD Datasheet
HI-1567CD
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HI-1567CD Summary of contents
Page 1
... CMOS / TTL data suitable for inputting to a Manchester decoder. Each receiver has a separate enable input which can be used to force the output of the receiver to a logic 0 (HI-1567) or logic 1 (HI-1568). To minimize the package size for this function, the transmitter outputs are internally connected to the receiver inputs, so that only two pins are required for connection to each coupling transformer ...
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... This produces a nominal 30V peak to peak signal across a 140 ohm load. The transmitter is connected to the bus via a 1:2.5 transformer whose secondary is connected to two 52 ohm isolation resisters which feed the terminated 70 ohm bus. This will produce a nominal voltage on the bus of 7.5 volts peak to peak. HI-1567, HI-1568 DESCRIPTION ...
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... Transmit Control Logic TXA/B TXINHA/B RECEIVER RXA/B Receive Logic RXA/B Comparator RXENA/B TXA/B TXA/B BUSA/B - BUSA/B Vin (Line to Line) RXA/B RXA/B HI-1567, HI-1568 Isolation Transformer BUSA/B BUSA/B Input Filter Figure 1. Block Diagram HOLT INTEGRATED CIRCUITS 3 Data Bus Coupler Network Direct or Transformer ...
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... Supply Voltage -0 +5.5 V VDD....................................... 5V... ±5% 10 Vp-p Temperature Range +1.0 A Industrial Screening.........-40°C to +85°C Hi-Temp Screening........-55°C to +125°C 0.5 W Military Screening..........-55°C to +125°C 7mW/°C 275°C for 10 sec NOTE: Stresses above absolute maximum ratings or outside recommended operating -65°C to +150°C conditions may cause permanent damage to the device ...
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... HI-1567, HI-1568 TEST CONDITIONS From input zero crossing to RXA/B or RXA/B From RXENA/B rising or falling edge to RXA/B or RXA/B TXA/B, TXA/B to BUSA/B, BUSA/B 35 ohm load 35 ohm load Inhibited output Active output 1:2.5 55 BUSA/B BUSA/B 55 RECEIVER 2.5 RXENA/B Figure 2. Test circuit HOLT INTEGRATED CIRCUITS ...
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... PIN PLASTIC ESOIC - WB HI-1567CD 0 20 PIN CERAMIC SIDE BRAZED DIP HI-1567CDT 0 20 PIN CERAMIC SIDE BRAZED DIP HI-1567CDM 0 20 PIN CERAMIC SIDE BRAZED DIP HI-1567CDM- PIN CERAMIC SIDE BRAZED DIP HI-1568PSI 1 20 PIN PLASTIC ESOIC - WB HI-1568PST 1 20 PIN PLASTIC ESOIC - WB HI-1568CDI ...
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PLASTIC SMALL OUTLINE (ESOIC (Wide Body, Thermally Enhanced) .5035 ± .0075 (12.789 ± .191) .4065 ± .0125 Top View (10.325 ± .318) .018 (.457) .050 TYP (1.27) 20-PIN CERAMIC SIDE-BRAZED DIP .050 TYP. (1.270 TYP.) .200 MAX. ...