74LS145 – 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR

74LS145 Datasheet PDF learn more.

Part number : 74LS145

Functions : This is a kind of semiconductor. 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR.

Pin arrangement :

Package information :

Manufacturer : Motorola

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74LS145 Datasheet PDF

The texts in the PDF file :

SN54/74LS145 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR The SN54 / 74LS145, 1-of-10 Decoder/Driver, is designed to accept BCD inputs and provide appropriate outputs to drive 10-digit incandescent displays. All outputs remain off for all invalid binary input conditions. It is designed for use as indicator/relay drivers or as an open-collector logic circuit driver. Each of the high breakdown output transistors will sink up to 80 mA of current. Typical power dissipation is 35 mW. This device is fully compatible with all TTL families. • Low Power Version of 54 / 74145 • Input Clamp Diodes Limit High Speed Termination Effects 1-OF-10 DECODER/ DRIVER OPEN-COLLECTOR LOW POWER SCHOTTKY CONNECTION DIAGRAM DIP (TOP VIEW) V CC 16 P 0 15 P 1 14 P 2 13 P 3 12 Q 9 11 Q 8 10 Q 7 J SUFFIX CERAMIC CASE 620-09 16 1 9 16 1 Q 0 2 Q 1 3 Q 2 4 Q 3 5 Q 4 6 Q 5 7 Q 6 8 GND N SUFFIX PLASTIC CASE 648-08 1 PIN NAMES P0, P1, P2, P3 Q0 to Q9 BCD Inputs Outputs (Note b) LOADING (Note a) HIGH 0.5 U.L. Open Collector LOW 0.25 U.L. 15 (7.5) U.L. 16 1 D SUFFIX SOIC CASE 751B-03 NOTES: a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW. b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 15 U.L. for Commercial (74) Temperature Ranges. ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC LOGIC DIAGRAM P 0 INPUTS P 1 P 2 P 3 LOGIC SYMBOL 15 14 INPUT INVERTERS P 0 13 12 0 0 1 1 2 2 3 3 P P 1 2 P 3 Q Q Q Q Q Q Q Q Q Q 0 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 9 10 11 DECODE/DRIVER GATES V = PIN 16 CC GND = PIN 8 Q 0 Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 7 Q 8 Q 9 OUTPUTS FAST AND LS TTL DATA 5-240 SN54/74LS145 TRUTH TABLE INPUTS P3 L L L L L L L L H H H H H H H H P2 L L L L H H H H L L L L H H H H P1 L L H H L L H H L L H H L L H H P0 L H L H L H L H L H L H L H L H Q0 L H H H H H H H H H H H H H H H Q1 H L H H H H H H H H H H H H H H Q2 H H L H H H H H H H H H H H H H Q3 H H H L H H H H H H H H H H H H OUTPUTS Q4 H H H H L H H H H H H H H H H H [ … ]

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