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MC145408 Fiches technique(PDF) 1 Page - Motorola, Inc |
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MC145408 Fiches technique(HTML) 1 Page - Motorola, Inc |
1 / 9 page MC145403 •MC145404•MC145405•MC145408 MOTOROLA 1 Drivers/Receivers EIA–232–E and CCITT V.28 These devices are silicon gate CMOS ICs that combine both the transmitter and receiver to fulfill the electrical specifications of EIA Standard 232–E and CCITT V.28. The drivers feature true TTL input compatibility, slew rate limiting outputs, 300 Ω power–off source impedance, and output typically switching to within 25% of the supply rails. The receivers can handle up to ± 25 V while presenting 3 to 7 k Ω impedance. Hysteresis in the receivers aid in the reception of noisy signals. By combining both drivers and receivers in a single CMOS chip, these devices provide efficient, low–power solutions for both EIA–232–E and V.28 applications. These devices offer the following performance features: Drivers •± 5 to ± 12 V Supply Range • 300 Ω Power–Off Source Impedance • Output Current Limiting • TTL and CMOS Compatible Inputs • Driver Slew Rate Range Limited to 30 V/µs Maximum Receivers •± 25 V Input Range • 3 to 7 kΩ Input Impedance • 0.8 V of Hysteresis for Enhanced Noise Immunity • TTL and CMOS Compatible Outputs Available Driver/Receiver Combinations Device Drivers Receivers Figure No. of Pins MC145403 3 5 1 20 MC145404 4 4 2 20 MC145405 5 3 3 20 MC145408 5 5 4 24 Alternative EIA–232 devices to consider are: Three Supply Single Supply MC145406 (3 x 3) MC145407 (3 x 3) MC145705 (2 x 3) with Power Down MC145706 (3 x 2) with Power Down MC145707 (3 x 3) with Power Down Order this document by MC145403/D MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC145403 MC145404 MC145405 MC145408 P SUFFIX PLASTIC DIP CASE 738 ORDERING INFORMATION MC145403P Plastic DIP MC145404P Plastic DIP MC145405P Plastic DIP MC145408P Plastic DIP MC145403DW SOG Package MC145404DW SOG Package MC145405DW SOG Package MC145408DW SOG Package MC145405SD SSOP P SUFFIX PLASTIC DIP CASE 724 DW SUFFIX SOG PACKAGE CASE 751E DW SUFFIX SOG PACKAGE CASE 751D 20 1 24 1 20 1 24 1 SD SUFFIX SSOP CASE 940B 20 1 © Motorola, Inc. 1997 REV 2 1/97 TN97010600 |
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