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MC145404 Dataheets PDF



Part Number MC145404
Manufacturers Motorola
Logo Motorola
Description DRIVER/RECEIVERS
Datasheet MC145404 DatasheetMC145404 Datasheet (PDF)

www.DataSheet4U.com MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145403/D MC145403 Drivers/Receivers MC145404 MC145405 MC145408 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.

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www.DataSheet4U.com MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145403/D MC145403 Drivers/Receivers MC145404 MC145405 MC145408 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 kΩ 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 ± 25 V Input Range 3 to 7 kΩ Input Impedance 0.8 V of Hysteresis for Enhanced Noise Immunity TTL and CMOS Compatible Outputs 24 24 1 20 1 P SUFFIX PLASTIC DIP CASE 738 P SUFFIX PLASTIC DIP CASE 724 Receivers 20 1 DW SUFFIX SOG PACKAGE CASE 751D Available Driver/Receiver Combinations Device MC145403 MC145404 MC145405 MC145408 Drivers 3 4 5 5 Receivers 5 4 3 5 Figure 1 2 3 4 No. of Pins 20 20 20 24 DW SUFFIX SOG PACKAGE CASE 751E 1 20 1 SD SUFFIX SSOP CASE 940B Alternative EIA–232 devices to consider are: Three Supply MC145406 (3 x 3) Single Supply 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 ORDERING INFORMATION MC145403P MC145404P MC145405P MC145408P MC145403DW MC145404DW MC145405DW MC145408DW MC145405SD Plastic DIP Plastic DIP Plastic DIP Plastic DIP SOG Package SOG Package SOG Package SOG Package SSOP REV 2 1/97 TN97010600 © Motorola, Inc. 1997 MOTOROLA MC145403•MC145404•MC145405•MC145408 1 DataSheet 4 U .com www.DataSheet4U.com PIN ASSIGNMENTS (DIP, SOG, AND SSOP) MC145403 3 DRIVERS/5 RECEIVERS VDD Rx1 Tx1 Rx2 Rx3 Tx2 Rx4 Rx5 Tx3 VSS 1 2 3 4 5 6 7 8 9 10 20 V CC R D R R D R R D 19 18 17 16 15 14 13 12 11 DO1 DI1 DO2 DO3 DI2 DO4 DO5 DI3 GND MC145404 4 DRIVERS/4 RECEIVERS VDD Rx1 Tx1 Rx2 Tx2 Rx3 Tx3 Rx4 Tx4 VSS 1 2 3 4 5 6 7 8 9 10 20 V CC R D R D R D R D 19 18 17 16 15 14 13 12 11 DO1 DI1 DO2 DI3 DO3 DI3 DO4 DI4 GND MC145405 5 DRIVERS/3 RECEIVERS VDD Rx1 Tx1 Tx2 Rx2 Tx3 Tx4 Rx3 Tx5 VSS 1 2 3 4 5 6 7 8 9 10 20 V CC R D D R D D R D 19 18 17 16 15 14 13 12 11 DO1 DI1 DI2 DO2 DI3 DI4 DO3 DI5 GND MC145408 5 DRIVERS/5 RECEIVERS VDD Rx1 Tx1 Rx2 Tx2 Rx3 Tx3 Rx4 Tx4 Rx5 Tx5 VSS 1 2 3 4 5 6 7 8 9 10 11 12 R D R D R D R D R D 24 V CC 23 22 21 20 19 18 17 16 15 14 13 DO1 DI1 DO2 DI2 DO3 DI3 DO4 DI4 DO5 DI5 GND FUNCTIONAL DIAGRAM RECEIVER ESD PROTECTION 15 kΩ Rx 5.4 kΩ VSS 1.0 V 1.8 V VSS + DO – Tx VDD VCC 300 Ω VDD VCC.


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